org.codehaus.staxmate.dom

Class DOMConverter

java.lang.Object

org.codehaus.staxmate.dom.DOMConverter

public class DOMConverter
extends Object

Class that can build DOM trees and fragments using Stax stream readers, and write them out using Stax stream writers.

Field Summary

Fields

Modifier and Type	Field and Description
protected DocumentBuilder	_docBuilder
protected boolean	_inputCfgIgnoreWs Whether ignorable white space should be ignored, ie not added in the resulting JDOM tree.

Constructor Summary

Constructors

Constructor and Description
DOMConverter()
DOMConverter(DocumentBuilder b)

Method Summary

Methods

Modifier and Type	Method and Description
protected String	_buildDTD(DocumentType doctype)
protected static boolean	_isNamespaceAware(XMLStreamReader r)
protected void	_writeElement(org.codehaus.stax2.XMLStreamWriter2 sw, Element elem) Method called to output an element node and all of its children (recursively).
protected void	_writeNode(org.codehaus.stax2.XMLStreamWriter2 sw, Node node)
Document	buildDocument(XMLStreamReader r) This method will create a Document instance using the default JAXP DOM document construction mechanism and populated using the given StAX stream reader.
void	buildDocument(XMLStreamReader r, Document doc) This method will populate given Document using the given StAX stream reader instance.
Document	buildDocument(XMLStreamReader r, DocumentBuilder docbuilder) This method will create a Document instance using given DocumentBuilder and populated using the given StAX stream reader.
void	setIgnoreWhitespace(boolean state) Method used to change whether the build methods will add ignorable (element) white space in the DOM tree or not.
void	writeDocument(Document doc, XMLStreamWriter sw0) Method for writing out given DOM document using specified stream writer.
void	writeFragment(NodeList nodes, XMLStreamWriter sw0)
void	writeFragment(Node node, XMLStreamWriter sw0)

Methods inherited from class java.lang.Object

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

Field Detail

_docBuilder

protected final DocumentBuilder _docBuilder

_inputCfgIgnoreWs

protected boolean _inputCfgIgnoreWs

Whether ignorable white space should be ignored, ie not added in the resulting JDOM tree. If true, it will be ignored; if false, it will be added in the tree. Default value if false.

Constructor Detail

DOMConverter

public DOMConverter()

DOMConverter

public DOMConverter(DocumentBuilder b)

Method Detail

setIgnoreWhitespace

public void setIgnoreWhitespace(boolean state)

Method used to change whether the build methods will add ignorable (element) white space in the DOM tree or not.

Whether all-whitespace text segment is ignorable white space or not is based on DTD read in, as per XML specifications (white space is only significant in mixed content or pure text elements).

buildDocument

public Document buildDocument(XMLStreamReader r)
                       throws XMLStreamException

This method will create a Document instance using the default JAXP DOM document construction mechanism and populated using the given StAX stream reader. Namespace-awareness will be enabled for the DocumentBuilderFactory constructed; if this is not wanted, caller should construct DocumentBuilder separately.

Note: underlying stream reader will not be closed by calling this method.

Parameters:

r - Stream reader from which input is read.

Returns:

Document - DOM document object.

Throws:

XMLStreamException - If the reader threw such exception (to indicate a parsing or I/O problem)

buildDocument

public Document buildDocument(XMLStreamReader r,
                     DocumentBuilder docbuilder)
                       throws XMLStreamException

This method will create a Document instance using given DocumentBuilder and populated using the given StAX stream reader.

Note: underlying stream reader will not be closed by calling this method.

Parameters:

r - Stream reader from which input is read.

Returns:

Document - DOM document object.

Throws:

XMLStreamException - If the reader threw such exception (to indicate a parsing or I/O problem)

buildDocument

public void buildDocument(XMLStreamReader r,
                 Document doc)
                   throws XMLStreamException

This method will populate given Document using the given StAX stream reader instance.

This method takes a XMLStreamReader and builds up a DOM tree under given document object.

Implementation note: recursion has been eliminated by using nodes' parent/child relationship; this improves performance somewhat (classic recursion-by-iteration-and-explicit stack transformation)

Note: underlying stream reader will not be closed by calling this method.

Parameters:

r - Stream reader from which input is read.

doc - Document being built.

Throws:

XMLStreamException - If the reader threw such exception (to indicate a parsing or I/O problem)

writeDocument

public void writeDocument(Document doc,
                 XMLStreamWriter sw0)
                   throws XMLStreamException

Method for writing out given DOM document using specified stream writer.

Note: only regular XMLStreamWriter.close() is called on the stream writer. This usually means that the underlying stream is not closed (as per Stax 1.0 specification).

Throws:

XMLStreamException

writeFragment

public void writeFragment(NodeList nodes,
                 XMLStreamWriter sw0)
                   throws XMLStreamException

Throws:

XMLStreamException

writeFragment

public void writeFragment(Node node,
                 XMLStreamWriter sw0)
                   throws XMLStreamException

Throws:

XMLStreamException

_isNamespaceAware

protected static boolean _isNamespaceAware(XMLStreamReader r)
                                    throws XMLStreamException

Throws:

XMLStreamException

_writeNode

protected void _writeNode(org.codehaus.stax2.XMLStreamWriter2 sw,
              Node node)
                   throws XMLStreamException

Throws:

XMLStreamException

_buildDTD

protected String _buildDTD(DocumentType doctype)

_writeElement

protected void _writeElement(org.codehaus.stax2.XMLStreamWriter2 sw,
                 Element elem)
                      throws XMLStreamException

Method called to output an element node and all of its children (recursively).

Parameters:

elem - Element to output

Throws:

XMLStreamException