org.apache.tapestry.util
Class DelegatingPropertySource

java.lang.Object
  org.apache.tapestry.util.DelegatingPropertySource

All Implemented Interfaces:

IPropertySource

Direct Known Subclasses:

LocalizedPropertySource

public class DelegatingPropertySource
extends Object
implements IPropertySource

An implementation of IPropertySource that delegates to a list of other implementations. This makes it possible to create a search path for property values.

Since:

2.3

Version:

$Id: DelegatingPropertySource.java 243791 2004-02-19 17:38:13Z hlship $

Author:

Howard Lewis Ship

Constructor Summary

DelegatingPropertySource()

DelegatingPropertySource(IPropertySource delegate)

Method Summary

void	addSource(IPropertySource source) Adds another source to the list of delegate property sources.
String	getPropertyValue(String propertyName) Re-invokes the method on each delegate property source, in order, return the first non-null value found.

Methods inherited from class java.lang.Object

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

Constructor Detail

DelegatingPropertySource

public DelegatingPropertySource()

DelegatingPropertySource

public DelegatingPropertySource(IPropertySource delegate)

Method Detail

addSource

public void addSource(IPropertySource source)

Adds another source to the list of delegate property sources. This is typically only done during initialization of this DelegatingPropertySource.

getPropertyValue

public String getPropertyValue(String propertyName)

Re-invokes the method on each delegate property source, in order, return the first non-null value found.

Specified by:

getPropertyValue in interface IPropertySource