You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
139 lines
4.9 KiB
139 lines
4.9 KiB
/*
|
|
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*/
|
|
|
|
/*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
* 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.traversal;
|
|
|
|
import org.w3c.dom.Node;
|
|
import org.w3c.dom.DOMException;
|
|
|
|
/**
|
|
* <code>NodeIterators</code> are used to step through a set of nodes, e.g.
|
|
* the set of nodes in a <code>NodeList</code>, the document subtree
|
|
* governed by a particular <code>Node</code>, the results of a query, or
|
|
* any other set of nodes. The set of nodes to be iterated is determined by
|
|
* the implementation of the <code>NodeIterator</code>. DOM Level 2
|
|
* specifies a single <code>NodeIterator</code> implementation for
|
|
* document-order traversal of a document subtree. Instances of these
|
|
* <code>NodeIterators</code> are created by calling
|
|
* <code>DocumentTraversal</code><code>.createNodeIterator()</code>.
|
|
* <p>See also the <a href='http://www.w3.org/TR/2000/REC-DOM-Level-2-Traversal-Range-20001113'>Document Object Model (DOM) Level 2 Traversal and Range Specification</a>.
|
|
* @since DOM Level 2
|
|
*/
|
|
public interface NodeIterator {
|
|
/**
|
|
* The root node of the <code>NodeIterator</code>, as specified when it
|
|
* was created.
|
|
*/
|
|
public Node getRoot();
|
|
|
|
/**
|
|
* This attribute determines which node types are presented via the
|
|
* <code>NodeIterator</code>. The available set of constants is defined
|
|
* in the <code>NodeFilter</code> interface. Nodes not accepted by
|
|
* <code>whatToShow</code> will be skipped, but their children may still
|
|
* be considered. Note that this skip takes precedence over the filter,
|
|
* if any.
|
|
*/
|
|
public int getWhatToShow();
|
|
|
|
/**
|
|
* The <code>NodeFilter</code> used to screen nodes.
|
|
*/
|
|
public NodeFilter getFilter();
|
|
|
|
/**
|
|
* The value of this flag determines whether the children of entity
|
|
* reference nodes are visible to the <code>NodeIterator</code>. If
|
|
* false, these children and their descendants will be rejected. Note
|
|
* that this rejection takes precedence over <code>whatToShow</code> and
|
|
* the filter. Also note that this is currently the only situation where
|
|
* <code>NodeIterators</code> may reject a complete subtree rather than
|
|
* skipping individual nodes.
|
|
* <br>
|
|
* <br> To produce a view of the document that has entity references
|
|
* expanded and does not expose the entity reference node itself, use
|
|
* the <code>whatToShow</code> flags to hide the entity reference node
|
|
* and set <code>expandEntityReferences</code> to true when creating the
|
|
* <code>NodeIterator</code>. To produce a view of the document that has
|
|
* entity reference nodes but no entity expansion, use the
|
|
* <code>whatToShow</code> flags to show the entity reference node and
|
|
* set <code>expandEntityReferences</code> to false.
|
|
*/
|
|
public boolean getExpandEntityReferences();
|
|
|
|
/**
|
|
* Returns the next node in the set and advances the position of the
|
|
* <code>NodeIterator</code> in the set. After a
|
|
* <code>NodeIterator</code> is created, the first call to
|
|
* <code>nextNode()</code> returns the first node in the set.
|
|
* @return The next <code>Node</code> in the set being iterated over, or
|
|
* <code>null</code> if there are no more members in that set.
|
|
* @exception DOMException
|
|
* INVALID_STATE_ERR: Raised if this method is called after the
|
|
* <code>detach</code> method was invoked.
|
|
*/
|
|
public Node nextNode()
|
|
throws DOMException;
|
|
|
|
/**
|
|
* Returns the previous node in the set and moves the position of the
|
|
* <code>NodeIterator</code> backwards in the set.
|
|
* @return The previous <code>Node</code> in the set being iterated over,
|
|
* or <code>null</code> if there are no more members in that set.
|
|
* @exception DOMException
|
|
* INVALID_STATE_ERR: Raised if this method is called after the
|
|
* <code>detach</code> method was invoked.
|
|
*/
|
|
public Node previousNode()
|
|
throws DOMException;
|
|
|
|
/**
|
|
* Detaches the <code>NodeIterator</code> from the set which it iterated
|
|
* over, releasing any computational resources and placing the
|
|
* <code>NodeIterator</code> in the INVALID state. After
|
|
* <code>detach</code> has been invoked, calls to <code>nextNode</code>
|
|
* or <code>previousNode</code> will raise the exception
|
|
* INVALID_STATE_ERR.
|
|
*/
|
|
public void detach();
|
|
|
|
}
|