com.jcorporate.expresso.kernel.management
Class TraxDOMWriter

java.lang.Object
  com.jcorporate.expresso.kernel.management.TraxDOMWriter

All Implemented Interfaces:

DOMWriter

public class TraxDOMWriter

extends Object

implements DOMWriter

DOM Writer that uses the Java TRAX API for writing the Expresso configuration file. This requires that an Java TRAX compliant XSL engine is available in the classpath. An example of this is the Xalan library from Apache.

Version:

$Revision: 1.7 $ on $Date: 2004/11/17 20:48:17 $

Author:

Michael Rimov

Constructor Summary

TraxDOMWriter()

Method Summary

String	getRequiredClass() Retrieve a class that must exist in the classpath for this to work.
protected boolean	isTraxInstalled() Checks to make sure that the appropriate TransformerFactory is available before attempting to work with things.
void	saveDocument(OutputStream os, org.w3c.dom.Document document) Override to actually save a DOM document to the output stream via whatever method you desire

Methods inherited from class java.lang.Object

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

Constructor Detail

TraxDOMWriter

public TraxDOMWriter()

Method Detail

saveDocument

public void saveDocument(OutputStream os,
                         org.w3c.dom.Document document)
                  throws ExpressoRuntimeException

Description copied from interface: DOMWriter

Override to actually save a DOM document to the output stream via whatever method you desire

Specified by:

saveDocument in interface DOMWriter

Parameters:

os - The output stream to save to

document - the DOM document representing the config.

Throws:

ExpressoRuntimeException - if there's an error saving the file.

getRequiredClass

public String getRequiredClass()

Retrieve a class that must exist in the classpath for this to work. Used as a sanity check to make sure the appropriate jars are installed.

Specified by:

getRequiredClass in interface DOMWriter

Returns:

java.lang.String - the name for TransformerFactory

isTraxInstalled

protected boolean isTraxInstalled()

Checks to make sure that the appropriate TransformerFactory is available before attempting to work with things.

Returns:

true if we can find the appropriate TRAX API objects