org.apache.xml.serializer
Class TreeWalker

java.lang.Object
  |
  +--org.apache.xml.serializer.TreeWalker

public final class TreeWalker

extends java.lang.Object

This class does a pre-order walk of the DOM tree, calling a ContentHandler interface as it goes. This class is a copy of the one in org.apache.xml.utils. It exists to cut the serializers dependancy on that package.

Usage:

**For internal use only**

Constructor Summary

TreeWalker(ContentHandler ch)

TreeWalker(ContentHandler contentHandler, java.lang.String systemId)
Constructor.

Method Summary

ContentHandler	getContentHandler() Get the ContentHandler used for the tree walk.
void	traverse(Node pos) Perform a pre-order traversal non-recursive style.
void	traverse(Node pos, Node top) Perform a pre-order traversal non-recursive style.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TreeWalker

public TreeWalker(ContentHandler ch)

TreeWalker

public TreeWalker(ContentHandler contentHandler,
                  java.lang.String systemId)

Constructor.

Parameters:

contentHandler - The implemention of the contentHandler operation (toXMLString, digest, ...)

Method Detail

getContentHandler

public ContentHandler getContentHandler()

Get the ContentHandler used for the tree walk.

Returns:

the ContentHandler used for the tree walk

traverse

public void traverse(Node pos)
              throws SAXException

Perform a pre-order traversal non-recursive style. Note that TreeWalker assumes that the subtree is intended to represent a complete (though not necessarily well-formed) document and, during a traversal, startDocument and endDocument will always be issued to the SAX listener.

Parameters:

pos - Node in the tree where to start traversal

Throws:

TransformerException -

traverse

public void traverse(Node pos,
                     Node top)
              throws SAXException

Perform a pre-order traversal non-recursive style. Note that TreeWalker assumes that the subtree is intended to represent a complete (though not necessarily well-formed) document and, during a traversal, startDocument and endDocument will always be issued to the SAX listener.

Parameters:

pos - Node in the tree where to start traversal

top - Node in the tree where to end traversal

Throws:

TransformerException -