gcc/libjava/java/util/AbstractSet.java

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/* AbstractSet.java -- Abstract implementation of most of Set
Collections drop from Classpath: 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/BitSet.java (and): Fix off-by-one bug, don't skip part of the bitset. (andNot): Likewise. (xor): Likewise. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/LinkedList.java (LinkedListItr.add): Don't skip the next entry. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/TreeMap.java (removeNode): Fix bug in node removal. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/AbstractCollection.java (containsAll): Use size of the correct collection for loop bound. * java/util/AbstractList.java (iterator.next): Increment pos after calling get on backing list. (listIterator.next): Likewise. * java/util/LinkedList.java (addLastEntry): Don't increment size before checking for size == 0. (addFirstEntry): Rearrange to match addLastEntry. (add): Do not increment size before inserting the new entry. * java/util/AbstractCollection.java (addAll): Use size of the correct collection for loop bound. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/AbstractSet.java (removeAll): Fix scoping thinko. * java/util/HashMap.java (putAllInternal): Set size here. * java/util/Hashtable.java (putAllInternal): New method. Copy contents of a map efficiently without calling put() or putAll(). (Hashtable (map)): Use putAllInternal. (clone): Likewise. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/Collections.java: * java/util/Vector.java: * java/util/WeakHashMap.java: Fix spelling errors. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractCollection.java (removeAllInternal), (retainAllInternal): Add hooks for use by ArrayList. * java/util/AbstractList.java: Minor code updates. Fix some scoping. * java/util/AbstractMap.java: ditto * java/util/ArrayList.java (readObject, writeObject): ditto (removeAllInternal, retainAllInternal): Optimize. * java/util/Arrays.java: ditto * java/util/Collections.java: ditto. Change order of parameters to equals(Object, Object) to match specs. * java/util/Dictionary.java: Improve javadoc. (Dictionary): Add explicit constructor. * java/util/HashMap.java: Improve javadoc. Rearrange methods to follow order in JDK. Cleanups related to recent code migration to AbstractMap. Fix some scoping. (entrySet): Cache the result. (modCount): Ensure that this is updated correctly. * java/util/HashSet.java: Improve javadoc. Fix some scoping. (init): Add hooks for LinkedHashSet. (map): Use "" instead of Boolean.TRUE in backing map. Use package-private API where possible for less overhead. (readObject, writeObject): Fix serialization. * java/util/Hashtable.java: Improve javadoc. Fix some scoping. (entrySet, keySet, values): Cache the result. (modCount): Ensure that this is updated correctly. (contains, remove): Fix NullPointer checking to match specs. (class Enumeration): Make more like HashIterator. * java/util/IdentityHashMap.java: Minor code updates. (modCount): Ensure that this is updated correctly. (readObject, writeObject): Fix serialization. * java/util/LinkedHashMap.java: Minor code updates. Cleanups related to recent code migration to AbstractMap. * java/util/LinkedHashSet.java: New file. * java/util/LinkedList.java: (readObject, writeObject): Fix serialization. * java/util/Makefile.am: List recently added files. * java/util/Stack.java: Minor code updates. * java/util/TreeMap.java: Improve javadoc. Overhaul the class to be more efficient. Fix some scoping. Rearrange the methods. (nil): Ensure that this can be thread-safe, and make it a static final. Initialize it to be more useful as a sentinal node. (Node): Specify color in constructor. (deleteFixup, insertFixup): Improve comments and algorithm. (fabricateTree): Redesign with less overhead. (lowestGreaterThan): Add parameter first to make SubMap easier. (removeNode): Patch hole where nil was being modified. Choose predecessor instead of successor so in-place swap works. (class VerifyResult, verifyTree, verifySub, verifyError): Remove this dead code after verifying the class works. (class SubMap): Rewrite several algorithms to avoid problems with comparing nil. * java/util/TreeSet.java: Improve javadoc. Fix some scoping. (clone): Fix ClassCastException when cloning subSet(). (readObject, writeObject): Fix serialization. * java/util/WeakHashMap.java: Improve javadoc. Fix some scoping. (NULL_KEY): Make it compare as null, for ease elsewhere. (Class WeakEntry): Rename from Entry, to avoid shadowing Map.Entry. Add missing toString. (modCount): Ensure that this is updated correctly. (clear, containsValue, keySet, putAll, values, WeakHashMap(Map)): Add missing methods and constructor. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/ArrayList.java (checkBoundExclusive), (checkBoundInclusive): Rename from range??clusive, to match AbstractList. * java/util/LinkedList.java (checkBoundsExclusive), (checkBoundsInclusive): ditto * java/util/Vector.java (checkBoundExclusive), (checkBoundInclusive): Move bounds checking into common methods. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractList.java: (modCount): Make sure it is updated in all needed places. * java/util/ArrayList.java: Improve javadoc. Implements RandomAccess. Add serialVersionUID. Reorder methods. (modCount): Make sure it is updated in all needed places. (rangeExclusive, rangeInclusive): Add common methods for bounds check. (isEmpty): Add missing method. * java/util/Collections.java: (class SynchronizedList): Make package visible. * java/util/ConcurrentModificationException.java: Improve javadoc. * java/util/EmptyStackException.java: Improve javadoc. * java/util/LinkedList.java: Improve javadoc. (modCount): Make sure it is updated in all needed places. (rangeExclusive, rangeInclusive): Add common methods for bounds check. * java/util/NoSuchElementException.java: Improve javadoc. * java/util/Stack.java: Improve javadoc. Fix synchronization issues. (modCount): Make sure it is updated in all needed places. * java/util/Vector.java: Improve javadoc. Fix synchronization issues. Implements RandomAccess. Reorder methods. (modCount): Make sure it is updated in all needed places. (setSize): Fix according to specifications: this does not dictate the backing array size. (removeAll, retainAll): Faster implementations. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/BitSet.java: Improve javadoc. (cardinality(), clear(), clear(int, int), flip(int)), (flip(int, int), get(int, int), intersects(BitSet), isEmpty()), (nextClearBit(int), nextSetBit(int), set(int, boolean)), (set(int, int), set(int, int, boolean)): Add new JDK 1.4 methods. (clone): Fix so subclasses clone correctly. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractCollection.java: Improve javadoc. (AbstractCollection()): Make constructor protected. (equals(Object, Object), hashCode(Object)): Add utility methods. * java/util/AbstractList.java: Improve javadoc. (AbstractList()): Make constructor protected. (indexOf(Object)): Call listIterator(), not listIterator(int). (iterator()): Follow Sun's requirement to not use listIterator(0). (listIterator(int)): Make AbstractListItr anonymous. (subList(int, int)): Add support for RandomAccess. (SubList.add(int, Object), SubList.remove(Object)): Fix bug with modCount tracking. (SubList.addAll(Collection)): Add missing method. (SubList.listIterator(int)): Fix bugs in indexing, modCount tracking. (class RandomAccessSubList): Add new class. * java/util/AbstractMap.java: Improve javadoc. (keys, values, KEYS, VALUES, ENTRIES): Consolidate common map fields. (AbstractMap()): Make constructor protected. (equals(Object, Object), hashCode(Object)): Add utility methods. (equals(Object)): Change algorithm to entrySet().equals(m.entrySet()), as documented by Sun. (keySet(), values()): Cache the collections. * java/util/AbstractSequentialList.java: Improve javadoc. (AbstractSequentialList()): Make constructor protected. * java/util/AbstractSet.java: Improve javadoc. (AbstractSet()): Make constructor protected. (removeAll(Collection)): Add missing method. * java/util/Arrays.java: Improve javadoc, rearrange method orders. (defaultComparator): Remove, in favor of Collections.compare(Object, Object, Comparator). (binarySearch, equals, sort): Fix natural order comparison of floats and doubles. Also improve Object comparison - when comparator is null, use natural order. (fill, sort): Add missing checks for IllegalArgumentException. (sort, qsort): Fix sorting bugs, rework the code for more legibility. (mergeSort): Inline into sort(Object[], int, int, Comparator). (class ArrayList): Rename from ListImpl, and make compatible with JDK serialization. Add methods which more efficiently override those of AbstractList. * java/util/Collections: Improve javadoc. (isSequential(List)): Add and use a method for deciding between RandomAccess and sequential algorithms on lists. (class Empty*, class Synchronized*, class Unmodifiable*): Make compliant with JDK serializability. (class Singleton*, class CopiesList, class RevereseComparator), (class UnmodifiableMap.UnmodifiableEntrySet), (class *RandomAccessList): New classes for serial compatibility. (class Empty*, class Singleton*, class CopiesList): Add methods which more efficiently override those of Abstract*. (search): Inline into binarySearch(List, Object, Comparator). (binarySearch): Make sequential search only do log(n) comparisons, instead of n. (copy(List, List)): Do bounds checking before starting. (indexOfSubList, lastIndexOfSubList, list, replaceAll, rotate), (swap): Add new JDK 1.4 methods. (binarySearch, max, min, sort): Allow null comparator to represent natural ordering. (reverse(List)): Avoid unnecessary swap. (shuffle(List, Random)): Do shuffle in-place for RandomAccess lists. (SingletonList.get): Fix logic bug. (SingletonMap.entrySet): Make the entry immutable, and cache the returned set. (SynchronizedCollection, SynchronizedMap, UnmodifiableCollection), (UnmodifiableMap): Detect null pointer in construction. (SynchronizedMap, UnmodifiableMap): Cache collection views. * java/util/BasicMapEntry: Improve javadoc. From-SVN: r48035
2001-12-15 15:47:03 +08:00
Copyright (C) 1998, 2000, 2001 Free Software Foundation, Inc.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
AbstractCollection.java (addAll): Use size() instead of hasNext() in iterator loop. 2000-10-29 Bryce McKinlay <bryce@albatross.co.nz> * java/util/AbstractCollection.java (addAll): Use size() instead of hasNext() in iterator loop. (clear): Ditto. (contains): Ditto. Simplify loop. (containsAll): Ditto. (remove): Ditto. (removeAll): Ditto. (retainAll): Ditto. (toArray): Ditto. (toString): Ditto. Use string concatenation operators, not StringBuffer. * java/util/AbstractList.java (addAll): Use size() instead of hasNext() in iterator loop. (equals): Ditto. (hashCode): Ditto. (indexOf): Ditto. Don't take null check outside of the loop. (iterator): Return an AbstractListItr instead of anonymous class. (lastIndexOf): Use a for loop bounded by size() instead of hasPrevious() in iterator loop. (listIterator): Return an AbstractListItr. (removeRange): Remove bounds checking code and docs. (AbstractListItr): New inner class. Code moved here from listIterator(). (SubList.iterator): Removed. Use default implementation from AbstractList instead. (SubList.listIterator): As above. * java/util/AbstractMap.java (clear): Use a for loop bounded by size() instead of hasNext() in iterator loop. (containsValue): Ditto. (equals): Ditto. (get): Ditto. (put): Ditto. (putAll): Ditto. (remove): Ditto. (toString): Ditto. Use string concatenation operators, not StringBuffer. * java/util/AbstractSequentialList.java (addAll): Use a for loop bounded by size() instead of hasNext() in iterator loop. * java/util/AbstractSet.java (hashCode): Don't catch exception as part of normal execution flow. Do an explicit null check instead. * java/util/ArrayList.java (_iSize): Rename to `size'. (_arData): Rename to `data'. (get): Check lower bounds also. Simplify IndexOutOfBoundsException message. (remove): Ditto. (removeRange): Make protected. Don't check bounds. (add): Check lower bounds also. Simplify IndexOutOfBoundsException message. (addAll (Collection)): Use a size-bounded for loop instead of hasNext() check. (addAll (int, Collection)): Check lower bounds. Simplify exception string. (clone): Clone the data array too. (indexOf): Inline doesEqual(). (lastIndexOf): Ditto. (clear): Don't set array data to null. (set): Check lower bounds. Simplify exception string. (toArray): Correct comment. (trimToSize): Don't update modCount, this is not a structural change. Add comment. * java/util/BitSet.java: Merged with classpath, new JDK 1.2 methods implemented. (toString): Declare `bit' as long, not int. (data): Made package-private, not private. From-SVN: r37116
2000-10-29 13:06:10 +08:00
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA.
As a special exception, if you link this library with other files to
produce an executable, this library does not by itself cause the
resulting executable to be covered by the GNU General Public License.
This exception does not however invalidate any other reasons why the
executable file might be covered by the GNU General Public License. */
package java.util;
/**
* An abstract implementation of Set to make it easier to create your own
* implementations. In order to create a Set, subclass AbstractSet and
* implement the same methods that are required for AbstractCollection
* (although these methods must of course meet the requirements that Set puts
* on them - specifically, no element may be in the set more than once). This
* class simply provides implementations of equals() and hashCode() to fulfil
* the requirements placed on them by the Set interface.
Collections drop from Classpath: 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/BitSet.java (and): Fix off-by-one bug, don't skip part of the bitset. (andNot): Likewise. (xor): Likewise. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/LinkedList.java (LinkedListItr.add): Don't skip the next entry. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/TreeMap.java (removeNode): Fix bug in node removal. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/AbstractCollection.java (containsAll): Use size of the correct collection for loop bound. * java/util/AbstractList.java (iterator.next): Increment pos after calling get on backing list. (listIterator.next): Likewise. * java/util/LinkedList.java (addLastEntry): Don't increment size before checking for size == 0. (addFirstEntry): Rearrange to match addLastEntry. (add): Do not increment size before inserting the new entry. * java/util/AbstractCollection.java (addAll): Use size of the correct collection for loop bound. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/AbstractSet.java (removeAll): Fix scoping thinko. * java/util/HashMap.java (putAllInternal): Set size here. * java/util/Hashtable.java (putAllInternal): New method. Copy contents of a map efficiently without calling put() or putAll(). (Hashtable (map)): Use putAllInternal. (clone): Likewise. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/Collections.java: * java/util/Vector.java: * java/util/WeakHashMap.java: Fix spelling errors. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractCollection.java (removeAllInternal), (retainAllInternal): Add hooks for use by ArrayList. * java/util/AbstractList.java: Minor code updates. Fix some scoping. * java/util/AbstractMap.java: ditto * java/util/ArrayList.java (readObject, writeObject): ditto (removeAllInternal, retainAllInternal): Optimize. * java/util/Arrays.java: ditto * java/util/Collections.java: ditto. Change order of parameters to equals(Object, Object) to match specs. * java/util/Dictionary.java: Improve javadoc. (Dictionary): Add explicit constructor. * java/util/HashMap.java: Improve javadoc. Rearrange methods to follow order in JDK. Cleanups related to recent code migration to AbstractMap. Fix some scoping. (entrySet): Cache the result. (modCount): Ensure that this is updated correctly. * java/util/HashSet.java: Improve javadoc. Fix some scoping. (init): Add hooks for LinkedHashSet. (map): Use "" instead of Boolean.TRUE in backing map. Use package-private API where possible for less overhead. (readObject, writeObject): Fix serialization. * java/util/Hashtable.java: Improve javadoc. Fix some scoping. (entrySet, keySet, values): Cache the result. (modCount): Ensure that this is updated correctly. (contains, remove): Fix NullPointer checking to match specs. (class Enumeration): Make more like HashIterator. * java/util/IdentityHashMap.java: Minor code updates. (modCount): Ensure that this is updated correctly. (readObject, writeObject): Fix serialization. * java/util/LinkedHashMap.java: Minor code updates. Cleanups related to recent code migration to AbstractMap. * java/util/LinkedHashSet.java: New file. * java/util/LinkedList.java: (readObject, writeObject): Fix serialization. * java/util/Makefile.am: List recently added files. * java/util/Stack.java: Minor code updates. * java/util/TreeMap.java: Improve javadoc. Overhaul the class to be more efficient. Fix some scoping. Rearrange the methods. (nil): Ensure that this can be thread-safe, and make it a static final. Initialize it to be more useful as a sentinal node. (Node): Specify color in constructor. (deleteFixup, insertFixup): Improve comments and algorithm. (fabricateTree): Redesign with less overhead. (lowestGreaterThan): Add parameter first to make SubMap easier. (removeNode): Patch hole where nil was being modified. Choose predecessor instead of successor so in-place swap works. (class VerifyResult, verifyTree, verifySub, verifyError): Remove this dead code after verifying the class works. (class SubMap): Rewrite several algorithms to avoid problems with comparing nil. * java/util/TreeSet.java: Improve javadoc. Fix some scoping. (clone): Fix ClassCastException when cloning subSet(). (readObject, writeObject): Fix serialization. * java/util/WeakHashMap.java: Improve javadoc. Fix some scoping. (NULL_KEY): Make it compare as null, for ease elsewhere. (Class WeakEntry): Rename from Entry, to avoid shadowing Map.Entry. Add missing toString. (modCount): Ensure that this is updated correctly. (clear, containsValue, keySet, putAll, values, WeakHashMap(Map)): Add missing methods and constructor. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/ArrayList.java (checkBoundExclusive), (checkBoundInclusive): Rename from range??clusive, to match AbstractList. * java/util/LinkedList.java (checkBoundsExclusive), (checkBoundsInclusive): ditto * java/util/Vector.java (checkBoundExclusive), (checkBoundInclusive): Move bounds checking into common methods. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractList.java: (modCount): Make sure it is updated in all needed places. * java/util/ArrayList.java: Improve javadoc. Implements RandomAccess. Add serialVersionUID. Reorder methods. (modCount): Make sure it is updated in all needed places. (rangeExclusive, rangeInclusive): Add common methods for bounds check. (isEmpty): Add missing method. * java/util/Collections.java: (class SynchronizedList): Make package visible. * java/util/ConcurrentModificationException.java: Improve javadoc. * java/util/EmptyStackException.java: Improve javadoc. * java/util/LinkedList.java: Improve javadoc. (modCount): Make sure it is updated in all needed places. (rangeExclusive, rangeInclusive): Add common methods for bounds check. * java/util/NoSuchElementException.java: Improve javadoc. * java/util/Stack.java: Improve javadoc. Fix synchronization issues. (modCount): Make sure it is updated in all needed places. * java/util/Vector.java: Improve javadoc. Fix synchronization issues. Implements RandomAccess. Reorder methods. (modCount): Make sure it is updated in all needed places. (setSize): Fix according to specifications: this does not dictate the backing array size. (removeAll, retainAll): Faster implementations. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/BitSet.java: Improve javadoc. (cardinality(), clear(), clear(int, int), flip(int)), (flip(int, int), get(int, int), intersects(BitSet), isEmpty()), (nextClearBit(int), nextSetBit(int), set(int, boolean)), (set(int, int), set(int, int, boolean)): Add new JDK 1.4 methods. (clone): Fix so subclasses clone correctly. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractCollection.java: Improve javadoc. (AbstractCollection()): Make constructor protected. (equals(Object, Object), hashCode(Object)): Add utility methods. * java/util/AbstractList.java: Improve javadoc. (AbstractList()): Make constructor protected. (indexOf(Object)): Call listIterator(), not listIterator(int). (iterator()): Follow Sun's requirement to not use listIterator(0). (listIterator(int)): Make AbstractListItr anonymous. (subList(int, int)): Add support for RandomAccess. (SubList.add(int, Object), SubList.remove(Object)): Fix bug with modCount tracking. (SubList.addAll(Collection)): Add missing method. (SubList.listIterator(int)): Fix bugs in indexing, modCount tracking. (class RandomAccessSubList): Add new class. * java/util/AbstractMap.java: Improve javadoc. (keys, values, KEYS, VALUES, ENTRIES): Consolidate common map fields. (AbstractMap()): Make constructor protected. (equals(Object, Object), hashCode(Object)): Add utility methods. (equals(Object)): Change algorithm to entrySet().equals(m.entrySet()), as documented by Sun. (keySet(), values()): Cache the collections. * java/util/AbstractSequentialList.java: Improve javadoc. (AbstractSequentialList()): Make constructor protected. * java/util/AbstractSet.java: Improve javadoc. (AbstractSet()): Make constructor protected. (removeAll(Collection)): Add missing method. * java/util/Arrays.java: Improve javadoc, rearrange method orders. (defaultComparator): Remove, in favor of Collections.compare(Object, Object, Comparator). (binarySearch, equals, sort): Fix natural order comparison of floats and doubles. Also improve Object comparison - when comparator is null, use natural order. (fill, sort): Add missing checks for IllegalArgumentException. (sort, qsort): Fix sorting bugs, rework the code for more legibility. (mergeSort): Inline into sort(Object[], int, int, Comparator). (class ArrayList): Rename from ListImpl, and make compatible with JDK serialization. Add methods which more efficiently override those of AbstractList. * java/util/Collections: Improve javadoc. (isSequential(List)): Add and use a method for deciding between RandomAccess and sequential algorithms on lists. (class Empty*, class Synchronized*, class Unmodifiable*): Make compliant with JDK serializability. (class Singleton*, class CopiesList, class RevereseComparator), (class UnmodifiableMap.UnmodifiableEntrySet), (class *RandomAccessList): New classes for serial compatibility. (class Empty*, class Singleton*, class CopiesList): Add methods which more efficiently override those of Abstract*. (search): Inline into binarySearch(List, Object, Comparator). (binarySearch): Make sequential search only do log(n) comparisons, instead of n. (copy(List, List)): Do bounds checking before starting. (indexOfSubList, lastIndexOfSubList, list, replaceAll, rotate), (swap): Add new JDK 1.4 methods. (binarySearch, max, min, sort): Allow null comparator to represent natural ordering. (reverse(List)): Avoid unnecessary swap. (shuffle(List, Random)): Do shuffle in-place for RandomAccess lists. (SingletonList.get): Fix logic bug. (SingletonMap.entrySet): Make the entry immutable, and cache the returned set. (SynchronizedCollection, SynchronizedMap, UnmodifiableCollection), (UnmodifiableMap): Detect null pointer in construction. (SynchronizedMap, UnmodifiableMap): Cache collection views. * java/util/BasicMapEntry: Improve javadoc. From-SVN: r48035
2001-12-15 15:47:03 +08:00
*
* @author Original author unknown
* @author Eric Blake <ebb9@email.byu.edu>
* @see Collection
* @see AbstractCollection
* @see Set
* @see HashSet
* @see TreeSet
* @see LinkedHashSet
* @since 1.2
* @status updated to 1.4
*/
AbstractCollection.java (addAll): Use size() instead of hasNext() in iterator loop. 2000-10-29 Bryce McKinlay <bryce@albatross.co.nz> * java/util/AbstractCollection.java (addAll): Use size() instead of hasNext() in iterator loop. (clear): Ditto. (contains): Ditto. Simplify loop. (containsAll): Ditto. (remove): Ditto. (removeAll): Ditto. (retainAll): Ditto. (toArray): Ditto. (toString): Ditto. Use string concatenation operators, not StringBuffer. * java/util/AbstractList.java (addAll): Use size() instead of hasNext() in iterator loop. (equals): Ditto. (hashCode): Ditto. (indexOf): Ditto. Don't take null check outside of the loop. (iterator): Return an AbstractListItr instead of anonymous class. (lastIndexOf): Use a for loop bounded by size() instead of hasPrevious() in iterator loop. (listIterator): Return an AbstractListItr. (removeRange): Remove bounds checking code and docs. (AbstractListItr): New inner class. Code moved here from listIterator(). (SubList.iterator): Removed. Use default implementation from AbstractList instead. (SubList.listIterator): As above. * java/util/AbstractMap.java (clear): Use a for loop bounded by size() instead of hasNext() in iterator loop. (containsValue): Ditto. (equals): Ditto. (get): Ditto. (put): Ditto. (putAll): Ditto. (remove): Ditto. (toString): Ditto. Use string concatenation operators, not StringBuffer. * java/util/AbstractSequentialList.java (addAll): Use a for loop bounded by size() instead of hasNext() in iterator loop. * java/util/AbstractSet.java (hashCode): Don't catch exception as part of normal execution flow. Do an explicit null check instead. * java/util/ArrayList.java (_iSize): Rename to `size'. (_arData): Rename to `data'. (get): Check lower bounds also. Simplify IndexOutOfBoundsException message. (remove): Ditto. (removeRange): Make protected. Don't check bounds. (add): Check lower bounds also. Simplify IndexOutOfBoundsException message. (addAll (Collection)): Use a size-bounded for loop instead of hasNext() check. (addAll (int, Collection)): Check lower bounds. Simplify exception string. (clone): Clone the data array too. (indexOf): Inline doesEqual(). (lastIndexOf): Ditto. (clear): Don't set array data to null. (set): Check lower bounds. Simplify exception string. (toArray): Correct comment. (trimToSize): Don't update modCount, this is not a structural change. Add comment. * java/util/BitSet.java: Merged with classpath, new JDK 1.2 methods implemented. (toString): Declare `bit' as long, not int. (data): Made package-private, not private. From-SVN: r37116
2000-10-29 13:06:10 +08:00
public abstract class AbstractSet extends AbstractCollection implements Set
{
Collections drop from Classpath: 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/BitSet.java (and): Fix off-by-one bug, don't skip part of the bitset. (andNot): Likewise. (xor): Likewise. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/LinkedList.java (LinkedListItr.add): Don't skip the next entry. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/TreeMap.java (removeNode): Fix bug in node removal. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/AbstractCollection.java (containsAll): Use size of the correct collection for loop bound. * java/util/AbstractList.java (iterator.next): Increment pos after calling get on backing list. (listIterator.next): Likewise. * java/util/LinkedList.java (addLastEntry): Don't increment size before checking for size == 0. (addFirstEntry): Rearrange to match addLastEntry. (add): Do not increment size before inserting the new entry. * java/util/AbstractCollection.java (addAll): Use size of the correct collection for loop bound. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/AbstractSet.java (removeAll): Fix scoping thinko. * java/util/HashMap.java (putAllInternal): Set size here. * java/util/Hashtable.java (putAllInternal): New method. Copy contents of a map efficiently without calling put() or putAll(). (Hashtable (map)): Use putAllInternal. (clone): Likewise. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/Collections.java: * java/util/Vector.java: * java/util/WeakHashMap.java: Fix spelling errors. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractCollection.java (removeAllInternal), (retainAllInternal): Add hooks for use by ArrayList. * java/util/AbstractList.java: Minor code updates. Fix some scoping. * java/util/AbstractMap.java: ditto * java/util/ArrayList.java (readObject, writeObject): ditto (removeAllInternal, retainAllInternal): Optimize. * java/util/Arrays.java: ditto * java/util/Collections.java: ditto. Change order of parameters to equals(Object, Object) to match specs. * java/util/Dictionary.java: Improve javadoc. (Dictionary): Add explicit constructor. * java/util/HashMap.java: Improve javadoc. Rearrange methods to follow order in JDK. Cleanups related to recent code migration to AbstractMap. Fix some scoping. (entrySet): Cache the result. (modCount): Ensure that this is updated correctly. * java/util/HashSet.java: Improve javadoc. Fix some scoping. (init): Add hooks for LinkedHashSet. (map): Use "" instead of Boolean.TRUE in backing map. Use package-private API where possible for less overhead. (readObject, writeObject): Fix serialization. * java/util/Hashtable.java: Improve javadoc. Fix some scoping. (entrySet, keySet, values): Cache the result. (modCount): Ensure that this is updated correctly. (contains, remove): Fix NullPointer checking to match specs. (class Enumeration): Make more like HashIterator. * java/util/IdentityHashMap.java: Minor code updates. (modCount): Ensure that this is updated correctly. (readObject, writeObject): Fix serialization. * java/util/LinkedHashMap.java: Minor code updates. Cleanups related to recent code migration to AbstractMap. * java/util/LinkedHashSet.java: New file. * java/util/LinkedList.java: (readObject, writeObject): Fix serialization. * java/util/Makefile.am: List recently added files. * java/util/Stack.java: Minor code updates. * java/util/TreeMap.java: Improve javadoc. Overhaul the class to be more efficient. Fix some scoping. Rearrange the methods. (nil): Ensure that this can be thread-safe, and make it a static final. Initialize it to be more useful as a sentinal node. (Node): Specify color in constructor. (deleteFixup, insertFixup): Improve comments and algorithm. (fabricateTree): Redesign with less overhead. (lowestGreaterThan): Add parameter first to make SubMap easier. (removeNode): Patch hole where nil was being modified. Choose predecessor instead of successor so in-place swap works. (class VerifyResult, verifyTree, verifySub, verifyError): Remove this dead code after verifying the class works. (class SubMap): Rewrite several algorithms to avoid problems with comparing nil. * java/util/TreeSet.java: Improve javadoc. Fix some scoping. (clone): Fix ClassCastException when cloning subSet(). (readObject, writeObject): Fix serialization. * java/util/WeakHashMap.java: Improve javadoc. Fix some scoping. (NULL_KEY): Make it compare as null, for ease elsewhere. (Class WeakEntry): Rename from Entry, to avoid shadowing Map.Entry. Add missing toString. (modCount): Ensure that this is updated correctly. (clear, containsValue, keySet, putAll, values, WeakHashMap(Map)): Add missing methods and constructor. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/ArrayList.java (checkBoundExclusive), (checkBoundInclusive): Rename from range??clusive, to match AbstractList. * java/util/LinkedList.java (checkBoundsExclusive), (checkBoundsInclusive): ditto * java/util/Vector.java (checkBoundExclusive), (checkBoundInclusive): Move bounds checking into common methods. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractList.java: (modCount): Make sure it is updated in all needed places. * java/util/ArrayList.java: Improve javadoc. Implements RandomAccess. Add serialVersionUID. Reorder methods. (modCount): Make sure it is updated in all needed places. (rangeExclusive, rangeInclusive): Add common methods for bounds check. (isEmpty): Add missing method. * java/util/Collections.java: (class SynchronizedList): Make package visible. * java/util/ConcurrentModificationException.java: Improve javadoc. * java/util/EmptyStackException.java: Improve javadoc. * java/util/LinkedList.java: Improve javadoc. (modCount): Make sure it is updated in all needed places. (rangeExclusive, rangeInclusive): Add common methods for bounds check. * java/util/NoSuchElementException.java: Improve javadoc. * java/util/Stack.java: Improve javadoc. Fix synchronization issues. (modCount): Make sure it is updated in all needed places. * java/util/Vector.java: Improve javadoc. Fix synchronization issues. Implements RandomAccess. Reorder methods. (modCount): Make sure it is updated in all needed places. (setSize): Fix according to specifications: this does not dictate the backing array size. (removeAll, retainAll): Faster implementations. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/BitSet.java: Improve javadoc. (cardinality(), clear(), clear(int, int), flip(int)), (flip(int, int), get(int, int), intersects(BitSet), isEmpty()), (nextClearBit(int), nextSetBit(int), set(int, boolean)), (set(int, int), set(int, int, boolean)): Add new JDK 1.4 methods. (clone): Fix so subclasses clone correctly. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractCollection.java: Improve javadoc. (AbstractCollection()): Make constructor protected. (equals(Object, Object), hashCode(Object)): Add utility methods. * java/util/AbstractList.java: Improve javadoc. (AbstractList()): Make constructor protected. (indexOf(Object)): Call listIterator(), not listIterator(int). (iterator()): Follow Sun's requirement to not use listIterator(0). (listIterator(int)): Make AbstractListItr anonymous. (subList(int, int)): Add support for RandomAccess. (SubList.add(int, Object), SubList.remove(Object)): Fix bug with modCount tracking. (SubList.addAll(Collection)): Add missing method. (SubList.listIterator(int)): Fix bugs in indexing, modCount tracking. (class RandomAccessSubList): Add new class. * java/util/AbstractMap.java: Improve javadoc. (keys, values, KEYS, VALUES, ENTRIES): Consolidate common map fields. (AbstractMap()): Make constructor protected. (equals(Object, Object), hashCode(Object)): Add utility methods. (equals(Object)): Change algorithm to entrySet().equals(m.entrySet()), as documented by Sun. (keySet(), values()): Cache the collections. * java/util/AbstractSequentialList.java: Improve javadoc. (AbstractSequentialList()): Make constructor protected. * java/util/AbstractSet.java: Improve javadoc. (AbstractSet()): Make constructor protected. (removeAll(Collection)): Add missing method. * java/util/Arrays.java: Improve javadoc, rearrange method orders. (defaultComparator): Remove, in favor of Collections.compare(Object, Object, Comparator). (binarySearch, equals, sort): Fix natural order comparison of floats and doubles. Also improve Object comparison - when comparator is null, use natural order. (fill, sort): Add missing checks for IllegalArgumentException. (sort, qsort): Fix sorting bugs, rework the code for more legibility. (mergeSort): Inline into sort(Object[], int, int, Comparator). (class ArrayList): Rename from ListImpl, and make compatible with JDK serialization. Add methods which more efficiently override those of AbstractList. * java/util/Collections: Improve javadoc. (isSequential(List)): Add and use a method for deciding between RandomAccess and sequential algorithms on lists. (class Empty*, class Synchronized*, class Unmodifiable*): Make compliant with JDK serializability. (class Singleton*, class CopiesList, class RevereseComparator), (class UnmodifiableMap.UnmodifiableEntrySet), (class *RandomAccessList): New classes for serial compatibility. (class Empty*, class Singleton*, class CopiesList): Add methods which more efficiently override those of Abstract*. (search): Inline into binarySearch(List, Object, Comparator). (binarySearch): Make sequential search only do log(n) comparisons, instead of n. (copy(List, List)): Do bounds checking before starting. (indexOfSubList, lastIndexOfSubList, list, replaceAll, rotate), (swap): Add new JDK 1.4 methods. (binarySearch, max, min, sort): Allow null comparator to represent natural ordering. (reverse(List)): Avoid unnecessary swap. (shuffle(List, Random)): Do shuffle in-place for RandomAccess lists. (SingletonList.get): Fix logic bug. (SingletonMap.entrySet): Make the entry immutable, and cache the returned set. (SynchronizedCollection, SynchronizedMap, UnmodifiableCollection), (UnmodifiableMap): Detect null pointer in construction. (SynchronizedMap, UnmodifiableMap): Cache collection views. * java/util/BasicMapEntry: Improve javadoc. From-SVN: r48035
2001-12-15 15:47:03 +08:00
/**
* The main constructor, for use by subclasses.
*/
protected AbstractSet()
{
}
/**
* Tests whether the given object is equal to this Set. This implementation
* first checks whether this set <em>is</em> the given object, and returns
* true if so. Otherwise, if o is a Set and is the same size as this one, it
* returns the result of calling containsAll on the given Set. Otherwise, it
* returns false.
*
* @param o the Object to be tested for equality with this Set
* @return true if the given object is equal to this Set
*/
AbstractCollection.java (addAll): Use size() instead of hasNext() in iterator loop. 2000-10-29 Bryce McKinlay <bryce@albatross.co.nz> * java/util/AbstractCollection.java (addAll): Use size() instead of hasNext() in iterator loop. (clear): Ditto. (contains): Ditto. Simplify loop. (containsAll): Ditto. (remove): Ditto. (removeAll): Ditto. (retainAll): Ditto. (toArray): Ditto. (toString): Ditto. Use string concatenation operators, not StringBuffer. * java/util/AbstractList.java (addAll): Use size() instead of hasNext() in iterator loop. (equals): Ditto. (hashCode): Ditto. (indexOf): Ditto. Don't take null check outside of the loop. (iterator): Return an AbstractListItr instead of anonymous class. (lastIndexOf): Use a for loop bounded by size() instead of hasPrevious() in iterator loop. (listIterator): Return an AbstractListItr. (removeRange): Remove bounds checking code and docs. (AbstractListItr): New inner class. Code moved here from listIterator(). (SubList.iterator): Removed. Use default implementation from AbstractList instead. (SubList.listIterator): As above. * java/util/AbstractMap.java (clear): Use a for loop bounded by size() instead of hasNext() in iterator loop. (containsValue): Ditto. (equals): Ditto. (get): Ditto. (put): Ditto. (putAll): Ditto. (remove): Ditto. (toString): Ditto. Use string concatenation operators, not StringBuffer. * java/util/AbstractSequentialList.java (addAll): Use a for loop bounded by size() instead of hasNext() in iterator loop. * java/util/AbstractSet.java (hashCode): Don't catch exception as part of normal execution flow. Do an explicit null check instead. * java/util/ArrayList.java (_iSize): Rename to `size'. (_arData): Rename to `data'. (get): Check lower bounds also. Simplify IndexOutOfBoundsException message. (remove): Ditto. (removeRange): Make protected. Don't check bounds. (add): Check lower bounds also. Simplify IndexOutOfBoundsException message. (addAll (Collection)): Use a size-bounded for loop instead of hasNext() check. (addAll (int, Collection)): Check lower bounds. Simplify exception string. (clone): Clone the data array too. (indexOf): Inline doesEqual(). (lastIndexOf): Ditto. (clear): Don't set array data to null. (set): Check lower bounds. Simplify exception string. (toArray): Correct comment. (trimToSize): Don't update modCount, this is not a structural change. Add comment. * java/util/BitSet.java: Merged with classpath, new JDK 1.2 methods implemented. (toString): Declare `bit' as long, not int. (data): Made package-private, not private. From-SVN: r37116
2000-10-29 13:06:10 +08:00
public boolean equals(Object o)
{
Collections drop from Classpath: 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/BitSet.java (and): Fix off-by-one bug, don't skip part of the bitset. (andNot): Likewise. (xor): Likewise. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/LinkedList.java (LinkedListItr.add): Don't skip the next entry. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/TreeMap.java (removeNode): Fix bug in node removal. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/AbstractCollection.java (containsAll): Use size of the correct collection for loop bound. * java/util/AbstractList.java (iterator.next): Increment pos after calling get on backing list. (listIterator.next): Likewise. * java/util/LinkedList.java (addLastEntry): Don't increment size before checking for size == 0. (addFirstEntry): Rearrange to match addLastEntry. (add): Do not increment size before inserting the new entry. * java/util/AbstractCollection.java (addAll): Use size of the correct collection for loop bound. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/AbstractSet.java (removeAll): Fix scoping thinko. * java/util/HashMap.java (putAllInternal): Set size here. * java/util/Hashtable.java (putAllInternal): New method. Copy contents of a map efficiently without calling put() or putAll(). (Hashtable (map)): Use putAllInternal. (clone): Likewise. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/Collections.java: * java/util/Vector.java: * java/util/WeakHashMap.java: Fix spelling errors. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractCollection.java (removeAllInternal), (retainAllInternal): Add hooks for use by ArrayList. * java/util/AbstractList.java: Minor code updates. Fix some scoping. * java/util/AbstractMap.java: ditto * java/util/ArrayList.java (readObject, writeObject): ditto (removeAllInternal, retainAllInternal): Optimize. * java/util/Arrays.java: ditto * java/util/Collections.java: ditto. Change order of parameters to equals(Object, Object) to match specs. * java/util/Dictionary.java: Improve javadoc. (Dictionary): Add explicit constructor. * java/util/HashMap.java: Improve javadoc. Rearrange methods to follow order in JDK. Cleanups related to recent code migration to AbstractMap. Fix some scoping. (entrySet): Cache the result. (modCount): Ensure that this is updated correctly. * java/util/HashSet.java: Improve javadoc. Fix some scoping. (init): Add hooks for LinkedHashSet. (map): Use "" instead of Boolean.TRUE in backing map. Use package-private API where possible for less overhead. (readObject, writeObject): Fix serialization. * java/util/Hashtable.java: Improve javadoc. Fix some scoping. (entrySet, keySet, values): Cache the result. (modCount): Ensure that this is updated correctly. (contains, remove): Fix NullPointer checking to match specs. (class Enumeration): Make more like HashIterator. * java/util/IdentityHashMap.java: Minor code updates. (modCount): Ensure that this is updated correctly. (readObject, writeObject): Fix serialization. * java/util/LinkedHashMap.java: Minor code updates. Cleanups related to recent code migration to AbstractMap. * java/util/LinkedHashSet.java: New file. * java/util/LinkedList.java: (readObject, writeObject): Fix serialization. * java/util/Makefile.am: List recently added files. * java/util/Stack.java: Minor code updates. * java/util/TreeMap.java: Improve javadoc. Overhaul the class to be more efficient. Fix some scoping. Rearrange the methods. (nil): Ensure that this can be thread-safe, and make it a static final. Initialize it to be more useful as a sentinal node. (Node): Specify color in constructor. (deleteFixup, insertFixup): Improve comments and algorithm. (fabricateTree): Redesign with less overhead. (lowestGreaterThan): Add parameter first to make SubMap easier. (removeNode): Patch hole where nil was being modified. Choose predecessor instead of successor so in-place swap works. (class VerifyResult, verifyTree, verifySub, verifyError): Remove this dead code after verifying the class works. (class SubMap): Rewrite several algorithms to avoid problems with comparing nil. * java/util/TreeSet.java: Improve javadoc. Fix some scoping. (clone): Fix ClassCastException when cloning subSet(). (readObject, writeObject): Fix serialization. * java/util/WeakHashMap.java: Improve javadoc. Fix some scoping. (NULL_KEY): Make it compare as null, for ease elsewhere. (Class WeakEntry): Rename from Entry, to avoid shadowing Map.Entry. Add missing toString. (modCount): Ensure that this is updated correctly. (clear, containsValue, keySet, putAll, values, WeakHashMap(Map)): Add missing methods and constructor. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/ArrayList.java (checkBoundExclusive), (checkBoundInclusive): Rename from range??clusive, to match AbstractList. * java/util/LinkedList.java (checkBoundsExclusive), (checkBoundsInclusive): ditto * java/util/Vector.java (checkBoundExclusive), (checkBoundInclusive): Move bounds checking into common methods. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractList.java: (modCount): Make sure it is updated in all needed places. * java/util/ArrayList.java: Improve javadoc. Implements RandomAccess. Add serialVersionUID. Reorder methods. (modCount): Make sure it is updated in all needed places. (rangeExclusive, rangeInclusive): Add common methods for bounds check. (isEmpty): Add missing method. * java/util/Collections.java: (class SynchronizedList): Make package visible. * java/util/ConcurrentModificationException.java: Improve javadoc. * java/util/EmptyStackException.java: Improve javadoc. * java/util/LinkedList.java: Improve javadoc. (modCount): Make sure it is updated in all needed places. (rangeExclusive, rangeInclusive): Add common methods for bounds check. * java/util/NoSuchElementException.java: Improve javadoc. * java/util/Stack.java: Improve javadoc. Fix synchronization issues. (modCount): Make sure it is updated in all needed places. * java/util/Vector.java: Improve javadoc. Fix synchronization issues. Implements RandomAccess. Reorder methods. (modCount): Make sure it is updated in all needed places. (setSize): Fix according to specifications: this does not dictate the backing array size. (removeAll, retainAll): Faster implementations. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/BitSet.java: Improve javadoc. (cardinality(), clear(), clear(int, int), flip(int)), (flip(int, int), get(int, int), intersects(BitSet), isEmpty()), (nextClearBit(int), nextSetBit(int), set(int, boolean)), (set(int, int), set(int, int, boolean)): Add new JDK 1.4 methods. (clone): Fix so subclasses clone correctly. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractCollection.java: Improve javadoc. (AbstractCollection()): Make constructor protected. (equals(Object, Object), hashCode(Object)): Add utility methods. * java/util/AbstractList.java: Improve javadoc. (AbstractList()): Make constructor protected. (indexOf(Object)): Call listIterator(), not listIterator(int). (iterator()): Follow Sun's requirement to not use listIterator(0). (listIterator(int)): Make AbstractListItr anonymous. (subList(int, int)): Add support for RandomAccess. (SubList.add(int, Object), SubList.remove(Object)): Fix bug with modCount tracking. (SubList.addAll(Collection)): Add missing method. (SubList.listIterator(int)): Fix bugs in indexing, modCount tracking. (class RandomAccessSubList): Add new class. * java/util/AbstractMap.java: Improve javadoc. (keys, values, KEYS, VALUES, ENTRIES): Consolidate common map fields. (AbstractMap()): Make constructor protected. (equals(Object, Object), hashCode(Object)): Add utility methods. (equals(Object)): Change algorithm to entrySet().equals(m.entrySet()), as documented by Sun. (keySet(), values()): Cache the collections. * java/util/AbstractSequentialList.java: Improve javadoc. (AbstractSequentialList()): Make constructor protected. * java/util/AbstractSet.java: Improve javadoc. (AbstractSet()): Make constructor protected. (removeAll(Collection)): Add missing method. * java/util/Arrays.java: Improve javadoc, rearrange method orders. (defaultComparator): Remove, in favor of Collections.compare(Object, Object, Comparator). (binarySearch, equals, sort): Fix natural order comparison of floats and doubles. Also improve Object comparison - when comparator is null, use natural order. (fill, sort): Add missing checks for IllegalArgumentException. (sort, qsort): Fix sorting bugs, rework the code for more legibility. (mergeSort): Inline into sort(Object[], int, int, Comparator). (class ArrayList): Rename from ListImpl, and make compatible with JDK serialization. Add methods which more efficiently override those of AbstractList. * java/util/Collections: Improve javadoc. (isSequential(List)): Add and use a method for deciding between RandomAccess and sequential algorithms on lists. (class Empty*, class Synchronized*, class Unmodifiable*): Make compliant with JDK serializability. (class Singleton*, class CopiesList, class RevereseComparator), (class UnmodifiableMap.UnmodifiableEntrySet), (class *RandomAccessList): New classes for serial compatibility. (class Empty*, class Singleton*, class CopiesList): Add methods which more efficiently override those of Abstract*. (search): Inline into binarySearch(List, Object, Comparator). (binarySearch): Make sequential search only do log(n) comparisons, instead of n. (copy(List, List)): Do bounds checking before starting. (indexOfSubList, lastIndexOfSubList, list, replaceAll, rotate), (swap): Add new JDK 1.4 methods. (binarySearch, max, min, sort): Allow null comparator to represent natural ordering. (reverse(List)): Avoid unnecessary swap. (shuffle(List, Random)): Do shuffle in-place for RandomAccess lists. (SingletonList.get): Fix logic bug. (SingletonMap.entrySet): Make the entry immutable, and cache the returned set. (SynchronizedCollection, SynchronizedMap, UnmodifiableCollection), (UnmodifiableMap): Detect null pointer in construction. (SynchronizedMap, UnmodifiableMap): Cache collection views. * java/util/BasicMapEntry: Improve javadoc. From-SVN: r48035
2001-12-15 15:47:03 +08:00
return (o == this ||
(o instanceof Set && ((Set) o).size() == size()
&& containsAll((Collection) o)));
}
/**
* Returns a hash code for this Set. The hash code of a Set is the sum of the
* hash codes of all its elements, except that the hash code of null is
* defined to be zero. This implementation obtains an Iterator over the Set,
* and sums the results.
*
* @return a hash code for this Set
*/
AbstractCollection.java (addAll): Use size() instead of hasNext() in iterator loop. 2000-10-29 Bryce McKinlay <bryce@albatross.co.nz> * java/util/AbstractCollection.java (addAll): Use size() instead of hasNext() in iterator loop. (clear): Ditto. (contains): Ditto. Simplify loop. (containsAll): Ditto. (remove): Ditto. (removeAll): Ditto. (retainAll): Ditto. (toArray): Ditto. (toString): Ditto. Use string concatenation operators, not StringBuffer. * java/util/AbstractList.java (addAll): Use size() instead of hasNext() in iterator loop. (equals): Ditto. (hashCode): Ditto. (indexOf): Ditto. Don't take null check outside of the loop. (iterator): Return an AbstractListItr instead of anonymous class. (lastIndexOf): Use a for loop bounded by size() instead of hasPrevious() in iterator loop. (listIterator): Return an AbstractListItr. (removeRange): Remove bounds checking code and docs. (AbstractListItr): New inner class. Code moved here from listIterator(). (SubList.iterator): Removed. Use default implementation from AbstractList instead. (SubList.listIterator): As above. * java/util/AbstractMap.java (clear): Use a for loop bounded by size() instead of hasNext() in iterator loop. (containsValue): Ditto. (equals): Ditto. (get): Ditto. (put): Ditto. (putAll): Ditto. (remove): Ditto. (toString): Ditto. Use string concatenation operators, not StringBuffer. * java/util/AbstractSequentialList.java (addAll): Use a for loop bounded by size() instead of hasNext() in iterator loop. * java/util/AbstractSet.java (hashCode): Don't catch exception as part of normal execution flow. Do an explicit null check instead. * java/util/ArrayList.java (_iSize): Rename to `size'. (_arData): Rename to `data'. (get): Check lower bounds also. Simplify IndexOutOfBoundsException message. (remove): Ditto. (removeRange): Make protected. Don't check bounds. (add): Check lower bounds also. Simplify IndexOutOfBoundsException message. (addAll (Collection)): Use a size-bounded for loop instead of hasNext() check. (addAll (int, Collection)): Check lower bounds. Simplify exception string. (clone): Clone the data array too. (indexOf): Inline doesEqual(). (lastIndexOf): Ditto. (clear): Don't set array data to null. (set): Check lower bounds. Simplify exception string. (toArray): Correct comment. (trimToSize): Don't update modCount, this is not a structural change. Add comment. * java/util/BitSet.java: Merged with classpath, new JDK 1.2 methods implemented. (toString): Declare `bit' as long, not int. (data): Made package-private, not private. From-SVN: r37116
2000-10-29 13:06:10 +08:00
public int hashCode()
{
Iterator itr = iterator();
int hash = 0;
Collections drop from Classpath: 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/BitSet.java (and): Fix off-by-one bug, don't skip part of the bitset. (andNot): Likewise. (xor): Likewise. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/LinkedList.java (LinkedListItr.add): Don't skip the next entry. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/TreeMap.java (removeNode): Fix bug in node removal. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/AbstractCollection.java (containsAll): Use size of the correct collection for loop bound. * java/util/AbstractList.java (iterator.next): Increment pos after calling get on backing list. (listIterator.next): Likewise. * java/util/LinkedList.java (addLastEntry): Don't increment size before checking for size == 0. (addFirstEntry): Rearrange to match addLastEntry. (add): Do not increment size before inserting the new entry. * java/util/AbstractCollection.java (addAll): Use size of the correct collection for loop bound. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/AbstractSet.java (removeAll): Fix scoping thinko. * java/util/HashMap.java (putAllInternal): Set size here. * java/util/Hashtable.java (putAllInternal): New method. Copy contents of a map efficiently without calling put() or putAll(). (Hashtable (map)): Use putAllInternal. (clone): Likewise. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/Collections.java: * java/util/Vector.java: * java/util/WeakHashMap.java: Fix spelling errors. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractCollection.java (removeAllInternal), (retainAllInternal): Add hooks for use by ArrayList. * java/util/AbstractList.java: Minor code updates. Fix some scoping. * java/util/AbstractMap.java: ditto * java/util/ArrayList.java (readObject, writeObject): ditto (removeAllInternal, retainAllInternal): Optimize. * java/util/Arrays.java: ditto * java/util/Collections.java: ditto. Change order of parameters to equals(Object, Object) to match specs. * java/util/Dictionary.java: Improve javadoc. (Dictionary): Add explicit constructor. * java/util/HashMap.java: Improve javadoc. Rearrange methods to follow order in JDK. Cleanups related to recent code migration to AbstractMap. Fix some scoping. (entrySet): Cache the result. (modCount): Ensure that this is updated correctly. * java/util/HashSet.java: Improve javadoc. Fix some scoping. (init): Add hooks for LinkedHashSet. (map): Use "" instead of Boolean.TRUE in backing map. Use package-private API where possible for less overhead. (readObject, writeObject): Fix serialization. * java/util/Hashtable.java: Improve javadoc. Fix some scoping. (entrySet, keySet, values): Cache the result. (modCount): Ensure that this is updated correctly. (contains, remove): Fix NullPointer checking to match specs. (class Enumeration): Make more like HashIterator. * java/util/IdentityHashMap.java: Minor code updates. (modCount): Ensure that this is updated correctly. (readObject, writeObject): Fix serialization. * java/util/LinkedHashMap.java: Minor code updates. Cleanups related to recent code migration to AbstractMap. * java/util/LinkedHashSet.java: New file. * java/util/LinkedList.java: (readObject, writeObject): Fix serialization. * java/util/Makefile.am: List recently added files. * java/util/Stack.java: Minor code updates. * java/util/TreeMap.java: Improve javadoc. Overhaul the class to be more efficient. Fix some scoping. Rearrange the methods. (nil): Ensure that this can be thread-safe, and make it a static final. Initialize it to be more useful as a sentinal node. (Node): Specify color in constructor. (deleteFixup, insertFixup): Improve comments and algorithm. (fabricateTree): Redesign with less overhead. (lowestGreaterThan): Add parameter first to make SubMap easier. (removeNode): Patch hole where nil was being modified. Choose predecessor instead of successor so in-place swap works. (class VerifyResult, verifyTree, verifySub, verifyError): Remove this dead code after verifying the class works. (class SubMap): Rewrite several algorithms to avoid problems with comparing nil. * java/util/TreeSet.java: Improve javadoc. Fix some scoping. (clone): Fix ClassCastException when cloning subSet(). (readObject, writeObject): Fix serialization. * java/util/WeakHashMap.java: Improve javadoc. Fix some scoping. (NULL_KEY): Make it compare as null, for ease elsewhere. (Class WeakEntry): Rename from Entry, to avoid shadowing Map.Entry. Add missing toString. (modCount): Ensure that this is updated correctly. (clear, containsValue, keySet, putAll, values, WeakHashMap(Map)): Add missing methods and constructor. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/ArrayList.java (checkBoundExclusive), (checkBoundInclusive): Rename from range??clusive, to match AbstractList. * java/util/LinkedList.java (checkBoundsExclusive), (checkBoundsInclusive): ditto * java/util/Vector.java (checkBoundExclusive), (checkBoundInclusive): Move bounds checking into common methods. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractList.java: (modCount): Make sure it is updated in all needed places. * java/util/ArrayList.java: Improve javadoc. Implements RandomAccess. Add serialVersionUID. Reorder methods. (modCount): Make sure it is updated in all needed places. (rangeExclusive, rangeInclusive): Add common methods for bounds check. (isEmpty): Add missing method. * java/util/Collections.java: (class SynchronizedList): Make package visible. * java/util/ConcurrentModificationException.java: Improve javadoc. * java/util/EmptyStackException.java: Improve javadoc. * java/util/LinkedList.java: Improve javadoc. (modCount): Make sure it is updated in all needed places. (rangeExclusive, rangeInclusive): Add common methods for bounds check. * java/util/NoSuchElementException.java: Improve javadoc. * java/util/Stack.java: Improve javadoc. Fix synchronization issues. (modCount): Make sure it is updated in all needed places. * java/util/Vector.java: Improve javadoc. Fix synchronization issues. Implements RandomAccess. Reorder methods. (modCount): Make sure it is updated in all needed places. (setSize): Fix according to specifications: this does not dictate the backing array size. (removeAll, retainAll): Faster implementations. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/BitSet.java: Improve javadoc. (cardinality(), clear(), clear(int, int), flip(int)), (flip(int, int), get(int, int), intersects(BitSet), isEmpty()), (nextClearBit(int), nextSetBit(int), set(int, boolean)), (set(int, int), set(int, int, boolean)): Add new JDK 1.4 methods. (clone): Fix so subclasses clone correctly. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractCollection.java: Improve javadoc. (AbstractCollection()): Make constructor protected. (equals(Object, Object), hashCode(Object)): Add utility methods. * java/util/AbstractList.java: Improve javadoc. (AbstractList()): Make constructor protected. (indexOf(Object)): Call listIterator(), not listIterator(int). (iterator()): Follow Sun's requirement to not use listIterator(0). (listIterator(int)): Make AbstractListItr anonymous. (subList(int, int)): Add support for RandomAccess. (SubList.add(int, Object), SubList.remove(Object)): Fix bug with modCount tracking. (SubList.addAll(Collection)): Add missing method. (SubList.listIterator(int)): Fix bugs in indexing, modCount tracking. (class RandomAccessSubList): Add new class. * java/util/AbstractMap.java: Improve javadoc. (keys, values, KEYS, VALUES, ENTRIES): Consolidate common map fields. (AbstractMap()): Make constructor protected. (equals(Object, Object), hashCode(Object)): Add utility methods. (equals(Object)): Change algorithm to entrySet().equals(m.entrySet()), as documented by Sun. (keySet(), values()): Cache the collections. * java/util/AbstractSequentialList.java: Improve javadoc. (AbstractSequentialList()): Make constructor protected. * java/util/AbstractSet.java: Improve javadoc. (AbstractSet()): Make constructor protected. (removeAll(Collection)): Add missing method. * java/util/Arrays.java: Improve javadoc, rearrange method orders. (defaultComparator): Remove, in favor of Collections.compare(Object, Object, Comparator). (binarySearch, equals, sort): Fix natural order comparison of floats and doubles. Also improve Object comparison - when comparator is null, use natural order. (fill, sort): Add missing checks for IllegalArgumentException. (sort, qsort): Fix sorting bugs, rework the code for more legibility. (mergeSort): Inline into sort(Object[], int, int, Comparator). (class ArrayList): Rename from ListImpl, and make compatible with JDK serialization. Add methods which more efficiently override those of AbstractList. * java/util/Collections: Improve javadoc. (isSequential(List)): Add and use a method for deciding between RandomAccess and sequential algorithms on lists. (class Empty*, class Synchronized*, class Unmodifiable*): Make compliant with JDK serializability. (class Singleton*, class CopiesList, class RevereseComparator), (class UnmodifiableMap.UnmodifiableEntrySet), (class *RandomAccessList): New classes for serial compatibility. (class Empty*, class Singleton*, class CopiesList): Add methods which more efficiently override those of Abstract*. (search): Inline into binarySearch(List, Object, Comparator). (binarySearch): Make sequential search only do log(n) comparisons, instead of n. (copy(List, List)): Do bounds checking before starting. (indexOfSubList, lastIndexOfSubList, list, replaceAll, rotate), (swap): Add new JDK 1.4 methods. (binarySearch, max, min, sort): Allow null comparator to represent natural ordering. (reverse(List)): Avoid unnecessary swap. (shuffle(List, Random)): Do shuffle in-place for RandomAccess lists. (SingletonList.get): Fix logic bug. (SingletonMap.entrySet): Make the entry immutable, and cache the returned set. (SynchronizedCollection, SynchronizedMap, UnmodifiableCollection), (UnmodifiableMap): Detect null pointer in construction. (SynchronizedMap, UnmodifiableMap): Cache collection views. * java/util/BasicMapEntry: Improve javadoc. From-SVN: r48035
2001-12-15 15:47:03 +08:00
int pos = size();
while (--pos >= 0)
hash += hashCode(itr.next());
return hash;
}
/**
* Removes from this set all elements in the given collection (optional
* operation). This implementation uses <code>size()</code> to determine
* the smaller collection. Then, if this set is smaller, it iterates
* over the set, calling Iterator.remove if the collection contains
* the element. If this set is larger, it iterates over the collection,
* calling Set.remove for all elements in the collection. Note that
* this operation will fail if a remove methods is not supported.
*
* @param c the collection of elements to remove
* @return true if the set was modified as a result
* @throws UnsupportedOperationException if remove is not supported
* @throws NullPointerException if the collection is null
* @see AbstractCollection#remove(Object)
* @see Collection#contains(Object)
* @see Iterator#remove()
*/
public boolean removeAll(Collection c)
{
int oldsize = size();
int count = c.size();
Iterator i;
if (oldsize < count)
AbstractCollection.java (addAll): Use size() instead of hasNext() in iterator loop. 2000-10-29 Bryce McKinlay <bryce@albatross.co.nz> * java/util/AbstractCollection.java (addAll): Use size() instead of hasNext() in iterator loop. (clear): Ditto. (contains): Ditto. Simplify loop. (containsAll): Ditto. (remove): Ditto. (removeAll): Ditto. (retainAll): Ditto. (toArray): Ditto. (toString): Ditto. Use string concatenation operators, not StringBuffer. * java/util/AbstractList.java (addAll): Use size() instead of hasNext() in iterator loop. (equals): Ditto. (hashCode): Ditto. (indexOf): Ditto. Don't take null check outside of the loop. (iterator): Return an AbstractListItr instead of anonymous class. (lastIndexOf): Use a for loop bounded by size() instead of hasPrevious() in iterator loop. (listIterator): Return an AbstractListItr. (removeRange): Remove bounds checking code and docs. (AbstractListItr): New inner class. Code moved here from listIterator(). (SubList.iterator): Removed. Use default implementation from AbstractList instead. (SubList.listIterator): As above. * java/util/AbstractMap.java (clear): Use a for loop bounded by size() instead of hasNext() in iterator loop. (containsValue): Ditto. (equals): Ditto. (get): Ditto. (put): Ditto. (putAll): Ditto. (remove): Ditto. (toString): Ditto. Use string concatenation operators, not StringBuffer. * java/util/AbstractSequentialList.java (addAll): Use a for loop bounded by size() instead of hasNext() in iterator loop. * java/util/AbstractSet.java (hashCode): Don't catch exception as part of normal execution flow. Do an explicit null check instead. * java/util/ArrayList.java (_iSize): Rename to `size'. (_arData): Rename to `data'. (get): Check lower bounds also. Simplify IndexOutOfBoundsException message. (remove): Ditto. (removeRange): Make protected. Don't check bounds. (add): Check lower bounds also. Simplify IndexOutOfBoundsException message. (addAll (Collection)): Use a size-bounded for loop instead of hasNext() check. (addAll (int, Collection)): Check lower bounds. Simplify exception string. (clone): Clone the data array too. (indexOf): Inline doesEqual(). (lastIndexOf): Ditto. (clear): Don't set array data to null. (set): Check lower bounds. Simplify exception string. (toArray): Correct comment. (trimToSize): Don't update modCount, this is not a structural change. Add comment. * java/util/BitSet.java: Merged with classpath, new JDK 1.2 methods implemented. (toString): Declare `bit' as long, not int. (data): Made package-private, not private. From-SVN: r37116
2000-10-29 13:06:10 +08:00
{
Collections drop from Classpath: 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/BitSet.java (and): Fix off-by-one bug, don't skip part of the bitset. (andNot): Likewise. (xor): Likewise. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/LinkedList.java (LinkedListItr.add): Don't skip the next entry. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/TreeMap.java (removeNode): Fix bug in node removal. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/AbstractCollection.java (containsAll): Use size of the correct collection for loop bound. * java/util/AbstractList.java (iterator.next): Increment pos after calling get on backing list. (listIterator.next): Likewise. * java/util/LinkedList.java (addLastEntry): Don't increment size before checking for size == 0. (addFirstEntry): Rearrange to match addLastEntry. (add): Do not increment size before inserting the new entry. * java/util/AbstractCollection.java (addAll): Use size of the correct collection for loop bound. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/AbstractSet.java (removeAll): Fix scoping thinko. * java/util/HashMap.java (putAllInternal): Set size here. * java/util/Hashtable.java (putAllInternal): New method. Copy contents of a map efficiently without calling put() or putAll(). (Hashtable (map)): Use putAllInternal. (clone): Likewise. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/Collections.java: * java/util/Vector.java: * java/util/WeakHashMap.java: Fix spelling errors. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractCollection.java (removeAllInternal), (retainAllInternal): Add hooks for use by ArrayList. * java/util/AbstractList.java: Minor code updates. Fix some scoping. * java/util/AbstractMap.java: ditto * java/util/ArrayList.java (readObject, writeObject): ditto (removeAllInternal, retainAllInternal): Optimize. * java/util/Arrays.java: ditto * java/util/Collections.java: ditto. Change order of parameters to equals(Object, Object) to match specs. * java/util/Dictionary.java: Improve javadoc. (Dictionary): Add explicit constructor. * java/util/HashMap.java: Improve javadoc. Rearrange methods to follow order in JDK. Cleanups related to recent code migration to AbstractMap. Fix some scoping. (entrySet): Cache the result. (modCount): Ensure that this is updated correctly. * java/util/HashSet.java: Improve javadoc. Fix some scoping. (init): Add hooks for LinkedHashSet. (map): Use "" instead of Boolean.TRUE in backing map. Use package-private API where possible for less overhead. (readObject, writeObject): Fix serialization. * java/util/Hashtable.java: Improve javadoc. Fix some scoping. (entrySet, keySet, values): Cache the result. (modCount): Ensure that this is updated correctly. (contains, remove): Fix NullPointer checking to match specs. (class Enumeration): Make more like HashIterator. * java/util/IdentityHashMap.java: Minor code updates. (modCount): Ensure that this is updated correctly. (readObject, writeObject): Fix serialization. * java/util/LinkedHashMap.java: Minor code updates. Cleanups related to recent code migration to AbstractMap. * java/util/LinkedHashSet.java: New file. * java/util/LinkedList.java: (readObject, writeObject): Fix serialization. * java/util/Makefile.am: List recently added files. * java/util/Stack.java: Minor code updates. * java/util/TreeMap.java: Improve javadoc. Overhaul the class to be more efficient. Fix some scoping. Rearrange the methods. (nil): Ensure that this can be thread-safe, and make it a static final. Initialize it to be more useful as a sentinal node. (Node): Specify color in constructor. (deleteFixup, insertFixup): Improve comments and algorithm. (fabricateTree): Redesign with less overhead. (lowestGreaterThan): Add parameter first to make SubMap easier. (removeNode): Patch hole where nil was being modified. Choose predecessor instead of successor so in-place swap works. (class VerifyResult, verifyTree, verifySub, verifyError): Remove this dead code after verifying the class works. (class SubMap): Rewrite several algorithms to avoid problems with comparing nil. * java/util/TreeSet.java: Improve javadoc. Fix some scoping. (clone): Fix ClassCastException when cloning subSet(). (readObject, writeObject): Fix serialization. * java/util/WeakHashMap.java: Improve javadoc. Fix some scoping. (NULL_KEY): Make it compare as null, for ease elsewhere. (Class WeakEntry): Rename from Entry, to avoid shadowing Map.Entry. Add missing toString. (modCount): Ensure that this is updated correctly. (clear, containsValue, keySet, putAll, values, WeakHashMap(Map)): Add missing methods and constructor. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/ArrayList.java (checkBoundExclusive), (checkBoundInclusive): Rename from range??clusive, to match AbstractList. * java/util/LinkedList.java (checkBoundsExclusive), (checkBoundsInclusive): ditto * java/util/Vector.java (checkBoundExclusive), (checkBoundInclusive): Move bounds checking into common methods. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractList.java: (modCount): Make sure it is updated in all needed places. * java/util/ArrayList.java: Improve javadoc. Implements RandomAccess. Add serialVersionUID. Reorder methods. (modCount): Make sure it is updated in all needed places. (rangeExclusive, rangeInclusive): Add common methods for bounds check. (isEmpty): Add missing method. * java/util/Collections.java: (class SynchronizedList): Make package visible. * java/util/ConcurrentModificationException.java: Improve javadoc. * java/util/EmptyStackException.java: Improve javadoc. * java/util/LinkedList.java: Improve javadoc. (modCount): Make sure it is updated in all needed places. (rangeExclusive, rangeInclusive): Add common methods for bounds check. * java/util/NoSuchElementException.java: Improve javadoc. * java/util/Stack.java: Improve javadoc. Fix synchronization issues. (modCount): Make sure it is updated in all needed places. * java/util/Vector.java: Improve javadoc. Fix synchronization issues. Implements RandomAccess. Reorder methods. (modCount): Make sure it is updated in all needed places. (setSize): Fix according to specifications: this does not dictate the backing array size. (removeAll, retainAll): Faster implementations. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/BitSet.java: Improve javadoc. (cardinality(), clear(), clear(int, int), flip(int)), (flip(int, int), get(int, int), intersects(BitSet), isEmpty()), (nextClearBit(int), nextSetBit(int), set(int, boolean)), (set(int, int), set(int, int, boolean)): Add new JDK 1.4 methods. (clone): Fix so subclasses clone correctly. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractCollection.java: Improve javadoc. (AbstractCollection()): Make constructor protected. (equals(Object, Object), hashCode(Object)): Add utility methods. * java/util/AbstractList.java: Improve javadoc. (AbstractList()): Make constructor protected. (indexOf(Object)): Call listIterator(), not listIterator(int). (iterator()): Follow Sun's requirement to not use listIterator(0). (listIterator(int)): Make AbstractListItr anonymous. (subList(int, int)): Add support for RandomAccess. (SubList.add(int, Object), SubList.remove(Object)): Fix bug with modCount tracking. (SubList.addAll(Collection)): Add missing method. (SubList.listIterator(int)): Fix bugs in indexing, modCount tracking. (class RandomAccessSubList): Add new class. * java/util/AbstractMap.java: Improve javadoc. (keys, values, KEYS, VALUES, ENTRIES): Consolidate common map fields. (AbstractMap()): Make constructor protected. (equals(Object, Object), hashCode(Object)): Add utility methods. (equals(Object)): Change algorithm to entrySet().equals(m.entrySet()), as documented by Sun. (keySet(), values()): Cache the collections. * java/util/AbstractSequentialList.java: Improve javadoc. (AbstractSequentialList()): Make constructor protected. * java/util/AbstractSet.java: Improve javadoc. (AbstractSet()): Make constructor protected. (removeAll(Collection)): Add missing method. * java/util/Arrays.java: Improve javadoc, rearrange method orders. (defaultComparator): Remove, in favor of Collections.compare(Object, Object, Comparator). (binarySearch, equals, sort): Fix natural order comparison of floats and doubles. Also improve Object comparison - when comparator is null, use natural order. (fill, sort): Add missing checks for IllegalArgumentException. (sort, qsort): Fix sorting bugs, rework the code for more legibility. (mergeSort): Inline into sort(Object[], int, int, Comparator). (class ArrayList): Rename from ListImpl, and make compatible with JDK serialization. Add methods which more efficiently override those of AbstractList. * java/util/Collections: Improve javadoc. (isSequential(List)): Add and use a method for deciding between RandomAccess and sequential algorithms on lists. (class Empty*, class Synchronized*, class Unmodifiable*): Make compliant with JDK serializability. (class Singleton*, class CopiesList, class RevereseComparator), (class UnmodifiableMap.UnmodifiableEntrySet), (class *RandomAccessList): New classes for serial compatibility. (class Empty*, class Singleton*, class CopiesList): Add methods which more efficiently override those of Abstract*. (search): Inline into binarySearch(List, Object, Comparator). (binarySearch): Make sequential search only do log(n) comparisons, instead of n. (copy(List, List)): Do bounds checking before starting. (indexOfSubList, lastIndexOfSubList, list, replaceAll, rotate), (swap): Add new JDK 1.4 methods. (binarySearch, max, min, sort): Allow null comparator to represent natural ordering. (reverse(List)): Avoid unnecessary swap. (shuffle(List, Random)): Do shuffle in-place for RandomAccess lists. (SingletonList.get): Fix logic bug. (SingletonMap.entrySet): Make the entry immutable, and cache the returned set. (SynchronizedCollection, SynchronizedMap, UnmodifiableCollection), (UnmodifiableMap): Detect null pointer in construction. (SynchronizedMap, UnmodifiableMap): Cache collection views. * java/util/BasicMapEntry: Improve javadoc. From-SVN: r48035
2001-12-15 15:47:03 +08:00
for (i = iterator(), count = oldsize; count > 0; count--)
if (c.contains(i.next()))
i.remove();
}
Collections drop from Classpath: 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/BitSet.java (and): Fix off-by-one bug, don't skip part of the bitset. (andNot): Likewise. (xor): Likewise. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/LinkedList.java (LinkedListItr.add): Don't skip the next entry. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/TreeMap.java (removeNode): Fix bug in node removal. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/AbstractCollection.java (containsAll): Use size of the correct collection for loop bound. * java/util/AbstractList.java (iterator.next): Increment pos after calling get on backing list. (listIterator.next): Likewise. * java/util/LinkedList.java (addLastEntry): Don't increment size before checking for size == 0. (addFirstEntry): Rearrange to match addLastEntry. (add): Do not increment size before inserting the new entry. * java/util/AbstractCollection.java (addAll): Use size of the correct collection for loop bound. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/AbstractSet.java (removeAll): Fix scoping thinko. * java/util/HashMap.java (putAllInternal): Set size here. * java/util/Hashtable.java (putAllInternal): New method. Copy contents of a map efficiently without calling put() or putAll(). (Hashtable (map)): Use putAllInternal. (clone): Likewise. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/Collections.java: * java/util/Vector.java: * java/util/WeakHashMap.java: Fix spelling errors. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractCollection.java (removeAllInternal), (retainAllInternal): Add hooks for use by ArrayList. * java/util/AbstractList.java: Minor code updates. Fix some scoping. * java/util/AbstractMap.java: ditto * java/util/ArrayList.java (readObject, writeObject): ditto (removeAllInternal, retainAllInternal): Optimize. * java/util/Arrays.java: ditto * java/util/Collections.java: ditto. Change order of parameters to equals(Object, Object) to match specs. * java/util/Dictionary.java: Improve javadoc. (Dictionary): Add explicit constructor. * java/util/HashMap.java: Improve javadoc. Rearrange methods to follow order in JDK. Cleanups related to recent code migration to AbstractMap. Fix some scoping. (entrySet): Cache the result. (modCount): Ensure that this is updated correctly. * java/util/HashSet.java: Improve javadoc. Fix some scoping. (init): Add hooks for LinkedHashSet. (map): Use "" instead of Boolean.TRUE in backing map. Use package-private API where possible for less overhead. (readObject, writeObject): Fix serialization. * java/util/Hashtable.java: Improve javadoc. Fix some scoping. (entrySet, keySet, values): Cache the result. (modCount): Ensure that this is updated correctly. (contains, remove): Fix NullPointer checking to match specs. (class Enumeration): Make more like HashIterator. * java/util/IdentityHashMap.java: Minor code updates. (modCount): Ensure that this is updated correctly. (readObject, writeObject): Fix serialization. * java/util/LinkedHashMap.java: Minor code updates. Cleanups related to recent code migration to AbstractMap. * java/util/LinkedHashSet.java: New file. * java/util/LinkedList.java: (readObject, writeObject): Fix serialization. * java/util/Makefile.am: List recently added files. * java/util/Stack.java: Minor code updates. * java/util/TreeMap.java: Improve javadoc. Overhaul the class to be more efficient. Fix some scoping. Rearrange the methods. (nil): Ensure that this can be thread-safe, and make it a static final. Initialize it to be more useful as a sentinal node. (Node): Specify color in constructor. (deleteFixup, insertFixup): Improve comments and algorithm. (fabricateTree): Redesign with less overhead. (lowestGreaterThan): Add parameter first to make SubMap easier. (removeNode): Patch hole where nil was being modified. Choose predecessor instead of successor so in-place swap works. (class VerifyResult, verifyTree, verifySub, verifyError): Remove this dead code after verifying the class works. (class SubMap): Rewrite several algorithms to avoid problems with comparing nil. * java/util/TreeSet.java: Improve javadoc. Fix some scoping. (clone): Fix ClassCastException when cloning subSet(). (readObject, writeObject): Fix serialization. * java/util/WeakHashMap.java: Improve javadoc. Fix some scoping. (NULL_KEY): Make it compare as null, for ease elsewhere. (Class WeakEntry): Rename from Entry, to avoid shadowing Map.Entry. Add missing toString. (modCount): Ensure that this is updated correctly. (clear, containsValue, keySet, putAll, values, WeakHashMap(Map)): Add missing methods and constructor. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/ArrayList.java (checkBoundExclusive), (checkBoundInclusive): Rename from range??clusive, to match AbstractList. * java/util/LinkedList.java (checkBoundsExclusive), (checkBoundsInclusive): ditto * java/util/Vector.java (checkBoundExclusive), (checkBoundInclusive): Move bounds checking into common methods. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractList.java: (modCount): Make sure it is updated in all needed places. * java/util/ArrayList.java: Improve javadoc. Implements RandomAccess. Add serialVersionUID. Reorder methods. (modCount): Make sure it is updated in all needed places. (rangeExclusive, rangeInclusive): Add common methods for bounds check. (isEmpty): Add missing method. * java/util/Collections.java: (class SynchronizedList): Make package visible. * java/util/ConcurrentModificationException.java: Improve javadoc. * java/util/EmptyStackException.java: Improve javadoc. * java/util/LinkedList.java: Improve javadoc. (modCount): Make sure it is updated in all needed places. (rangeExclusive, rangeInclusive): Add common methods for bounds check. * java/util/NoSuchElementException.java: Improve javadoc. * java/util/Stack.java: Improve javadoc. Fix synchronization issues. (modCount): Make sure it is updated in all needed places. * java/util/Vector.java: Improve javadoc. Fix synchronization issues. Implements RandomAccess. Reorder methods. (modCount): Make sure it is updated in all needed places. (setSize): Fix according to specifications: this does not dictate the backing array size. (removeAll, retainAll): Faster implementations. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/BitSet.java: Improve javadoc. (cardinality(), clear(), clear(int, int), flip(int)), (flip(int, int), get(int, int), intersects(BitSet), isEmpty()), (nextClearBit(int), nextSetBit(int), set(int, boolean)), (set(int, int), set(int, int, boolean)): Add new JDK 1.4 methods. (clone): Fix so subclasses clone correctly. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractCollection.java: Improve javadoc. (AbstractCollection()): Make constructor protected. (equals(Object, Object), hashCode(Object)): Add utility methods. * java/util/AbstractList.java: Improve javadoc. (AbstractList()): Make constructor protected. (indexOf(Object)): Call listIterator(), not listIterator(int). (iterator()): Follow Sun's requirement to not use listIterator(0). (listIterator(int)): Make AbstractListItr anonymous. (subList(int, int)): Add support for RandomAccess. (SubList.add(int, Object), SubList.remove(Object)): Fix bug with modCount tracking. (SubList.addAll(Collection)): Add missing method. (SubList.listIterator(int)): Fix bugs in indexing, modCount tracking. (class RandomAccessSubList): Add new class. * java/util/AbstractMap.java: Improve javadoc. (keys, values, KEYS, VALUES, ENTRIES): Consolidate common map fields. (AbstractMap()): Make constructor protected. (equals(Object, Object), hashCode(Object)): Add utility methods. (equals(Object)): Change algorithm to entrySet().equals(m.entrySet()), as documented by Sun. (keySet(), values()): Cache the collections. * java/util/AbstractSequentialList.java: Improve javadoc. (AbstractSequentialList()): Make constructor protected. * java/util/AbstractSet.java: Improve javadoc. (AbstractSet()): Make constructor protected. (removeAll(Collection)): Add missing method. * java/util/Arrays.java: Improve javadoc, rearrange method orders. (defaultComparator): Remove, in favor of Collections.compare(Object, Object, Comparator). (binarySearch, equals, sort): Fix natural order comparison of floats and doubles. Also improve Object comparison - when comparator is null, use natural order. (fill, sort): Add missing checks for IllegalArgumentException. (sort, qsort): Fix sorting bugs, rework the code for more legibility. (mergeSort): Inline into sort(Object[], int, int, Comparator). (class ArrayList): Rename from ListImpl, and make compatible with JDK serialization. Add methods which more efficiently override those of AbstractList. * java/util/Collections: Improve javadoc. (isSequential(List)): Add and use a method for deciding between RandomAccess and sequential algorithms on lists. (class Empty*, class Synchronized*, class Unmodifiable*): Make compliant with JDK serializability. (class Singleton*, class CopiesList, class RevereseComparator), (class UnmodifiableMap.UnmodifiableEntrySet), (class *RandomAccessList): New classes for serial compatibility. (class Empty*, class Singleton*, class CopiesList): Add methods which more efficiently override those of Abstract*. (search): Inline into binarySearch(List, Object, Comparator). (binarySearch): Make sequential search only do log(n) comparisons, instead of n. (copy(List, List)): Do bounds checking before starting. (indexOfSubList, lastIndexOfSubList, list, replaceAll, rotate), (swap): Add new JDK 1.4 methods. (binarySearch, max, min, sort): Allow null comparator to represent natural ordering. (reverse(List)): Avoid unnecessary swap. (shuffle(List, Random)): Do shuffle in-place for RandomAccess lists. (SingletonList.get): Fix logic bug. (SingletonMap.entrySet): Make the entry immutable, and cache the returned set. (SynchronizedCollection, SynchronizedMap, UnmodifiableCollection), (UnmodifiableMap): Detect null pointer in construction. (SynchronizedMap, UnmodifiableMap): Cache collection views. * java/util/BasicMapEntry: Improve javadoc. From-SVN: r48035
2001-12-15 15:47:03 +08:00
else
for (i = c.iterator(); count > 0; count--)
remove(i.next());
return oldsize != size();
}
Collections drop from Classpath: 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/BitSet.java (and): Fix off-by-one bug, don't skip part of the bitset. (andNot): Likewise. (xor): Likewise. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/LinkedList.java (LinkedListItr.add): Don't skip the next entry. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/TreeMap.java (removeNode): Fix bug in node removal. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/AbstractCollection.java (containsAll): Use size of the correct collection for loop bound. * java/util/AbstractList.java (iterator.next): Increment pos after calling get on backing list. (listIterator.next): Likewise. * java/util/LinkedList.java (addLastEntry): Don't increment size before checking for size == 0. (addFirstEntry): Rearrange to match addLastEntry. (add): Do not increment size before inserting the new entry. * java/util/AbstractCollection.java (addAll): Use size of the correct collection for loop bound. 2001-12-15 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * java/util/AbstractSet.java (removeAll): Fix scoping thinko. * java/util/HashMap.java (putAllInternal): Set size here. * java/util/Hashtable.java (putAllInternal): New method. Copy contents of a map efficiently without calling put() or putAll(). (Hashtable (map)): Use putAllInternal. (clone): Likewise. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/Collections.java: * java/util/Vector.java: * java/util/WeakHashMap.java: Fix spelling errors. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractCollection.java (removeAllInternal), (retainAllInternal): Add hooks for use by ArrayList. * java/util/AbstractList.java: Minor code updates. Fix some scoping. * java/util/AbstractMap.java: ditto * java/util/ArrayList.java (readObject, writeObject): ditto (removeAllInternal, retainAllInternal): Optimize. * java/util/Arrays.java: ditto * java/util/Collections.java: ditto. Change order of parameters to equals(Object, Object) to match specs. * java/util/Dictionary.java: Improve javadoc. (Dictionary): Add explicit constructor. * java/util/HashMap.java: Improve javadoc. Rearrange methods to follow order in JDK. Cleanups related to recent code migration to AbstractMap. Fix some scoping. (entrySet): Cache the result. (modCount): Ensure that this is updated correctly. * java/util/HashSet.java: Improve javadoc. Fix some scoping. (init): Add hooks for LinkedHashSet. (map): Use "" instead of Boolean.TRUE in backing map. Use package-private API where possible for less overhead. (readObject, writeObject): Fix serialization. * java/util/Hashtable.java: Improve javadoc. Fix some scoping. (entrySet, keySet, values): Cache the result. (modCount): Ensure that this is updated correctly. (contains, remove): Fix NullPointer checking to match specs. (class Enumeration): Make more like HashIterator. * java/util/IdentityHashMap.java: Minor code updates. (modCount): Ensure that this is updated correctly. (readObject, writeObject): Fix serialization. * java/util/LinkedHashMap.java: Minor code updates. Cleanups related to recent code migration to AbstractMap. * java/util/LinkedHashSet.java: New file. * java/util/LinkedList.java: (readObject, writeObject): Fix serialization. * java/util/Makefile.am: List recently added files. * java/util/Stack.java: Minor code updates. * java/util/TreeMap.java: Improve javadoc. Overhaul the class to be more efficient. Fix some scoping. Rearrange the methods. (nil): Ensure that this can be thread-safe, and make it a static final. Initialize it to be more useful as a sentinal node. (Node): Specify color in constructor. (deleteFixup, insertFixup): Improve comments and algorithm. (fabricateTree): Redesign with less overhead. (lowestGreaterThan): Add parameter first to make SubMap easier. (removeNode): Patch hole where nil was being modified. Choose predecessor instead of successor so in-place swap works. (class VerifyResult, verifyTree, verifySub, verifyError): Remove this dead code after verifying the class works. (class SubMap): Rewrite several algorithms to avoid problems with comparing nil. * java/util/TreeSet.java: Improve javadoc. Fix some scoping. (clone): Fix ClassCastException when cloning subSet(). (readObject, writeObject): Fix serialization. * java/util/WeakHashMap.java: Improve javadoc. Fix some scoping. (NULL_KEY): Make it compare as null, for ease elsewhere. (Class WeakEntry): Rename from Entry, to avoid shadowing Map.Entry. Add missing toString. (modCount): Ensure that this is updated correctly. (clear, containsValue, keySet, putAll, values, WeakHashMap(Map)): Add missing methods and constructor. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/ArrayList.java (checkBoundExclusive), (checkBoundInclusive): Rename from range??clusive, to match AbstractList. * java/util/LinkedList.java (checkBoundsExclusive), (checkBoundsInclusive): ditto * java/util/Vector.java (checkBoundExclusive), (checkBoundInclusive): Move bounds checking into common methods. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractList.java: (modCount): Make sure it is updated in all needed places. * java/util/ArrayList.java: Improve javadoc. Implements RandomAccess. Add serialVersionUID. Reorder methods. (modCount): Make sure it is updated in all needed places. (rangeExclusive, rangeInclusive): Add common methods for bounds check. (isEmpty): Add missing method. * java/util/Collections.java: (class SynchronizedList): Make package visible. * java/util/ConcurrentModificationException.java: Improve javadoc. * java/util/EmptyStackException.java: Improve javadoc. * java/util/LinkedList.java: Improve javadoc. (modCount): Make sure it is updated in all needed places. (rangeExclusive, rangeInclusive): Add common methods for bounds check. * java/util/NoSuchElementException.java: Improve javadoc. * java/util/Stack.java: Improve javadoc. Fix synchronization issues. (modCount): Make sure it is updated in all needed places. * java/util/Vector.java: Improve javadoc. Fix synchronization issues. Implements RandomAccess. Reorder methods. (modCount): Make sure it is updated in all needed places. (setSize): Fix according to specifications: this does not dictate the backing array size. (removeAll, retainAll): Faster implementations. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/BitSet.java: Improve javadoc. (cardinality(), clear(), clear(int, int), flip(int)), (flip(int, int), get(int, int), intersects(BitSet), isEmpty()), (nextClearBit(int), nextSetBit(int), set(int, boolean)), (set(int, int), set(int, int, boolean)): Add new JDK 1.4 methods. (clone): Fix so subclasses clone correctly. 2001-12-15 Eric Blake <ebb9@email.byu.edu> * java/util/AbstractCollection.java: Improve javadoc. (AbstractCollection()): Make constructor protected. (equals(Object, Object), hashCode(Object)): Add utility methods. * java/util/AbstractList.java: Improve javadoc. (AbstractList()): Make constructor protected. (indexOf(Object)): Call listIterator(), not listIterator(int). (iterator()): Follow Sun's requirement to not use listIterator(0). (listIterator(int)): Make AbstractListItr anonymous. (subList(int, int)): Add support for RandomAccess. (SubList.add(int, Object), SubList.remove(Object)): Fix bug with modCount tracking. (SubList.addAll(Collection)): Add missing method. (SubList.listIterator(int)): Fix bugs in indexing, modCount tracking. (class RandomAccessSubList): Add new class. * java/util/AbstractMap.java: Improve javadoc. (keys, values, KEYS, VALUES, ENTRIES): Consolidate common map fields. (AbstractMap()): Make constructor protected. (equals(Object, Object), hashCode(Object)): Add utility methods. (equals(Object)): Change algorithm to entrySet().equals(m.entrySet()), as documented by Sun. (keySet(), values()): Cache the collections. * java/util/AbstractSequentialList.java: Improve javadoc. (AbstractSequentialList()): Make constructor protected. * java/util/AbstractSet.java: Improve javadoc. (AbstractSet()): Make constructor protected. (removeAll(Collection)): Add missing method. * java/util/Arrays.java: Improve javadoc, rearrange method orders. (defaultComparator): Remove, in favor of Collections.compare(Object, Object, Comparator). (binarySearch, equals, sort): Fix natural order comparison of floats and doubles. Also improve Object comparison - when comparator is null, use natural order. (fill, sort): Add missing checks for IllegalArgumentException. (sort, qsort): Fix sorting bugs, rework the code for more legibility. (mergeSort): Inline into sort(Object[], int, int, Comparator). (class ArrayList): Rename from ListImpl, and make compatible with JDK serialization. Add methods which more efficiently override those of AbstractList. * java/util/Collections: Improve javadoc. (isSequential(List)): Add and use a method for deciding between RandomAccess and sequential algorithms on lists. (class Empty*, class Synchronized*, class Unmodifiable*): Make compliant with JDK serializability. (class Singleton*, class CopiesList, class RevereseComparator), (class UnmodifiableMap.UnmodifiableEntrySet), (class *RandomAccessList): New classes for serial compatibility. (class Empty*, class Singleton*, class CopiesList): Add methods which more efficiently override those of Abstract*. (search): Inline into binarySearch(List, Object, Comparator). (binarySearch): Make sequential search only do log(n) comparisons, instead of n. (copy(List, List)): Do bounds checking before starting. (indexOfSubList, lastIndexOfSubList, list, replaceAll, rotate), (swap): Add new JDK 1.4 methods. (binarySearch, max, min, sort): Allow null comparator to represent natural ordering. (reverse(List)): Avoid unnecessary swap. (shuffle(List, Random)): Do shuffle in-place for RandomAccess lists. (SingletonList.get): Fix logic bug. (SingletonMap.entrySet): Make the entry immutable, and cache the returned set. (SynchronizedCollection, SynchronizedMap, UnmodifiableCollection), (UnmodifiableMap): Detect null pointer in construction. (SynchronizedMap, UnmodifiableMap): Cache collection views. * java/util/BasicMapEntry: Improve javadoc. From-SVN: r48035
2001-12-15 15:47:03 +08:00
}