org.apache.xml.utils

Class TreeWalker

public class TreeWalker extends Object

This class does a pre-order walk of the DOM tree, calling a ContentHandler interface as it goes.

UNKNOWN: advanced

Constructor Summary
	TreeWalker(ContentHandler contentHandler, DOMHelper dh, String systemId) Constructor.
	TreeWalker(ContentHandler contentHandler, DOMHelper dh) Constructor.
	TreeWalker(ContentHandler contentHandler) Constructor.

Method Summary
ContentHandler	getContentHandler() Get the ContentHandler used for the tree walk.
void	setContentHandler(ContentHandler ch) 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.
void	traverseFragment(Node pos) Perform a pre-order traversal non-recursive style.

Constructor Detail

TreeWalker

public TreeWalker(ContentHandler contentHandler, DOMHelper dh, String systemId)

Constructor.

Parameters: contentHandler The implemention of the systemId System identifier for the document. contentHandler operation (toXMLString, digest, ...)

TreeWalker

public TreeWalker(ContentHandler contentHandler, DOMHelper dh)

Constructor.

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

TreeWalker

public TreeWalker(ContentHandler contentHandler)

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

setContentHandler

public void setContentHandler(ContentHandler ch)

Get the ContentHandler used for the tree walk.

Returns: the ContentHandler used for the tree walk

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)

Parameters: pos Node in the tree where to start traversal top Node in the tree where to end traversal

Throws: TransformerException

traverseFragment

public void traverseFragment(Node pos)

Perform a pre-order traversal non-recursive style. In contrast to the traverse() method this method will not issue startDocument() and endDocument() events to the SAX listener.

Parameters: pos Node in the tree where to start traversal

Throws: TransformerException