org.apache.xerces.dom
Class NodeIteratorImpl

java.lang.Object
  extended by org.apache.xerces.dom.NodeIteratorImpl
All Implemented Interfaces:
org.w3c.dom.traversal.NodeIterator

public class NodeIteratorImpl
extends java.lang.Object
implements org.w3c.dom.traversal.NodeIterator

DefaultNodeIterator implements a NodeIterator, which iterates a DOM tree in the expected depth first way.

The whatToShow and filter functionality is implemented as expected.

This class also has method removeNode to enable iterator "fix-up" on DOM remove. It is expected that the DOM implementation call removeNode right before the actual DOM transformation. If not called by the DOM, the client could call it before doing the removal.

Version:
$Id: NodeIteratorImpl.java 447266 2006-09-18 05:57:49Z mrglavas $

INTERNAL:

Usage of this class is not supported. It may be altered or removed at any time.

Constructor Summary
NodeIteratorImpl(DocumentImpl document, org.w3c.dom.Node root, int whatToShow, org.w3c.dom.traversal.NodeFilter nodeFilter, boolean entityReferenceExpansion)
          Public constructor
 
Method Summary
 void detach()
           
 boolean getExpandEntityReferences()
          Return whether children entity references are included in the iterator.
 org.w3c.dom.traversal.NodeFilter getFilter()
          Return the filter
 org.w3c.dom.Node getRoot()
           
 int getWhatToShow()
          Return the whatToShow value
 org.w3c.dom.Node nextNode()
          Return the next Node in the Iterator.
 org.w3c.dom.Node previousNode()
          Return the previous Node in the Iterator.
 void removeNode(org.w3c.dom.Node node)
          Fix-up the iterator on a remove.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

NodeIteratorImpl

public NodeIteratorImpl(DocumentImpl document,
                        org.w3c.dom.Node root,
                        int whatToShow,
                        org.w3c.dom.traversal.NodeFilter nodeFilter,
                        boolean entityReferenceExpansion)
Public constructor

Method Detail

getRoot

public org.w3c.dom.Node getRoot()
Specified by:
getRoot in interface org.w3c.dom.traversal.NodeIterator

getWhatToShow

public int getWhatToShow()
Return the whatToShow value

Specified by:
getWhatToShow in interface org.w3c.dom.traversal.NodeIterator

getFilter

public org.w3c.dom.traversal.NodeFilter getFilter()
Return the filter

Specified by:
getFilter in interface org.w3c.dom.traversal.NodeIterator

getExpandEntityReferences

public boolean getExpandEntityReferences()
Return whether children entity references are included in the iterator.

Specified by:
getExpandEntityReferences in interface org.w3c.dom.traversal.NodeIterator

nextNode

public org.w3c.dom.Node nextNode()
Return the next Node in the Iterator. The node is the next node in depth-first order which also passes the filter, and whatToShow. If there is no next node which passes these criteria, then return null.

Specified by:
nextNode in interface org.w3c.dom.traversal.NodeIterator

previousNode

public org.w3c.dom.Node previousNode()
Return the previous Node in the Iterator. The node is the next node in _backwards_ depth-first order which also passes the filter, and whatToShow.

Specified by:
previousNode in interface org.w3c.dom.traversal.NodeIterator

removeNode

public void removeNode(org.w3c.dom.Node node)
Fix-up the iterator on a remove. Called by DOM or otherwise, before an actual DOM remove.


detach

public void detach()
Specified by:
detach in interface org.w3c.dom.traversal.NodeIterator


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