mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-25 14:59:49 +08:00
86c9776ba2
* java/util/ArrayList.java: Remove RCS keywords from comments
* java/util/BasicMapEntry.java: idem
* java/util/Dictionary.java: idem
* java/util/HashSet.java: idem
* java/util/EventObject.java: reindent
* java/util/Properties.java: idem
* java/util/SortedMap.java: idem
* java/util/Enumeration.java: Merge with Classpath
* java/util/EventListener.java: idem
* java/util/Observable.java: idem
* java/util/Observer.java: idem
* java/util/Stack.java: idem
From-SVN: r40639
84 lines
3.0 KiB
Java
84 lines
3.0 KiB
Java
/* Dictionary.java -- an abstract (and essentially worthless)
|
|
class which is Hashtable's superclass
|
|
Copyright (C) 1998 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.
|
|
|
|
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;
|
|
|
|
/**
|
|
* A Dictionary maps keys to values; <i>how</i> it does that is
|
|
* implementation-specific.
|
|
*
|
|
* This is an abstract class which has really gone by the wayside.
|
|
* People at Javasoft are probably embarrassed by it. At this point,
|
|
* it might as well be an interface rather than a class, but it remains
|
|
* this poor, laugable skeleton for the sake of backwards compatibility.
|
|
* At any rate, this was what came before the <pre>Map</pre> interface
|
|
* in the Collections framework.
|
|
*
|
|
* @author Jon Zeppieri
|
|
*/
|
|
public abstract class Dictionary extends Object
|
|
{
|
|
/** returns an Enumeration of the values in this Dictionary */
|
|
public abstract Enumeration elements();
|
|
|
|
/**
|
|
* returns the value associated with the supplied key, or null
|
|
* if no such value exists
|
|
*
|
|
* @param key the key to use to fetch the value
|
|
*/
|
|
public abstract Object get(Object key);
|
|
|
|
/** returns true IFF there are no elements in this Dictionary (size() == 0) */
|
|
public abstract boolean isEmpty();
|
|
|
|
/** returns an Enumeration of the keys in this Dictionary */
|
|
public abstract Enumeration keys();
|
|
|
|
/**
|
|
* inserts a new value into this Dictionary, located by the
|
|
* supllied key; note: Dictionary's subclasses (all 1 of them)
|
|
* do not support null keys or values (I can only assume this
|
|
* would have been more general)
|
|
*
|
|
* @param key the key which locates the value
|
|
* @param value the value to put into the Dictionary
|
|
*/
|
|
public abstract Object put(Object key, Object value);
|
|
|
|
/**
|
|
* removes fro the Dictionary the value located by the given key
|
|
*
|
|
* @param key the key used to locate the value to be removed
|
|
*/
|
|
public abstract Object remove(Object key);
|
|
|
|
/** returns the number of values currently in this Dictionary */
|
|
public abstract int size();
|
|
}
|