org.exolab.jmscts.util
Class ConfigExpander

java.lang.Object
  |
  +--org.exolab.jmscts.util.ConfigExpander

All Implemented Interfaces:

org.exolab.castor.xml.EventProducer

public class ConfigExpander

extends java.lang.Object

implements org.exolab.castor.xml.EventProducer

This class expands elements and attributes in XML documents as the document is being parsed. It is designed to be used in conjunction with the Castor unmarshalling framework.

To be expanded, values must contain text of the form ${property.name} , where property.name is a property returned by System.getProperty().
If no property exists, the value remains unchanged.

Version:

$Revision: 1.2 $ $Date: 2004/02/03 21:52:13 $

Author:

Tim Anderson

See Also:

EventProducer, Unmarshaller

Constructor Summary

ConfigExpander(java.io.Reader reader)
Construct a new instance

Method Summary

void	setDocumentHandler(org.xml.sax.DocumentHandler handler) Sets the DocumentHandler to send SAX events to
void	start() Signals to start producing events

Methods inherited from class java.lang.Object

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

Constructor Detail

ConfigExpander

public ConfigExpander(java.io.Reader reader)

Construct a new instance

Parameters:

reader - the XML document reader

Method Detail

setDocumentHandler

public void setDocumentHandler(org.xml.sax.DocumentHandler handler)

Sets the DocumentHandler to send SAX events to

Specified by:

setDocumentHandler in interface org.exolab.castor.xml.EventProducer

Parameters:

handler - the handler to forward events to

start

public void start()
           throws org.xml.sax.SAXException

Signals to start producing events

Specified by:

start in interface org.exolab.castor.xml.EventProducer

Throws:

org.xml.sax.SAXException - if the document cannot be parsed