mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-23 04:08:59 +08:00
53 lines
3.1 KiB
Java
53 lines
3.1 KiB
Java
/*
|
|
* Copyright (c) 2000 World Wide Web Consortium,
|
|
* (Massachusetts Institute of Technology, Institut National de
|
|
* Recherche en Informatique et en Automatique, Keio University). All
|
|
* Rights Reserved. This program is distributed under the W3C's Software
|
|
* Intellectual Property License. This program 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 W3C License http://www.w3.org/Consortium/Legal/ for more details.
|
|
*/
|
|
|
|
package org.w3c.dom;
|
|
|
|
/**
|
|
* <code>DocumentFragment</code> is a "lightweight" or "minimal"
|
|
* <code>Document</code> object. It is very common to want to be able to
|
|
* extract a portion of a document's tree or to create a new fragment of a
|
|
* document. Imagine implementing a user command like cut or rearranging a
|
|
* document by moving fragments around. It is desirable to have an object
|
|
* which can hold such fragments and it is quite natural to use a Node for
|
|
* this purpose. While it is true that a <code>Document</code> object could
|
|
* fulfill this role, a <code>Document</code> object can potentially be a
|
|
* heavyweight object, depending on the underlying implementation. What is
|
|
* really needed for this is a very lightweight object.
|
|
* <code>DocumentFragment</code> is such an object.
|
|
* <p>Furthermore, various operations -- such as inserting nodes as children
|
|
* of another <code>Node</code> -- may take <code>DocumentFragment</code>
|
|
* objects as arguments; this results in all the child nodes of the
|
|
* <code>DocumentFragment</code> being moved to the child list of this node.
|
|
* <p>The children of a <code>DocumentFragment</code> node are zero or more
|
|
* nodes representing the tops of any sub-trees defining the structure of
|
|
* the document. <code>DocumentFragment</code> nodes do not need to be
|
|
* well-formed XML documents (although they do need to follow the rules
|
|
* imposed upon well-formed XML parsed entities, which can have multiple top
|
|
* nodes). For example, a <code>DocumentFragment</code> might have only one
|
|
* child and that child node could be a <code>Text</code> node. Such a
|
|
* structure model represents neither an HTML document nor a well-formed XML
|
|
* document.
|
|
* <p>When a <code>DocumentFragment</code> is inserted into a
|
|
* <code>Document</code> (or indeed any other <code>Node</code> that may
|
|
* take children) the children of the <code>DocumentFragment</code> and not
|
|
* the <code>DocumentFragment</code> itself are inserted into the
|
|
* <code>Node</code>. This makes the <code>DocumentFragment</code> very
|
|
* useful when the user wishes to create nodes that are siblings; the
|
|
* <code>DocumentFragment</code> acts as the parent of these nodes so that
|
|
* the user can use the standard methods from the <code>Node</code>
|
|
* interface, such as <code>insertBefore</code> and <code>appendChild</code>.
|
|
* <p>See also the <a href='http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113'>Document Object Model (DOM) Level 2 Core Specification</a>.
|
|
*/
|
|
public interface DocumentFragment extends Node {
|
|
}
|