com.webmethods.caf.faces.data.object
Class EmptyContentProvider

java.lang.Object
  com.webmethods.caf.faces.data.object.EmptyContentProvider

All Implemented Interfaces:

IContentProvider

public class EmptyContentProvider
extends Object
implements IContentProvider

Content provider implementation that does not have any properties

 EmptyContentProvider provider = new EmptyContentProvider();
 provider.hasProperty("anypropertyname"); // returns false
 provider.getValue("anyotherroperty); // returns null
 

Constructor Summary

EmptyContentProvider()

Method Summary

Object[]	getPropertyKeys() Always returns empty array
Class	getType(Object propertyKey) Always returns null
Object	getValue(Object propertyKey) Always returns null
boolean	hasProperty(Object propertyKey) Always returns false

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.webmethods.caf.faces.data.IContentProvider

toString

Constructor Detail

EmptyContentProvider

public EmptyContentProvider()

Method Detail

getPropertyKeys

public Object[] getPropertyKeys()

Always returns empty array

Specified by:

getPropertyKeys in interface IContentProvider

Returns:

array of property keys which is typically of type String or Integer

hasProperty

public boolean hasProperty(Object propertyKey)

Always returns false

Specified by:

hasProperty in interface IContentProvider

Parameters:

propertyKey - property key of type String or Integer

Returns:

true if property is supported

getValue

public Object getValue(Object propertyKey)
                throws EvaluationException,
                       PropertyNotFoundException

Always returns null

Specified by:

getValue in interface IContentProvider

Parameters:

propertyKey - the property key of type String or Integer

Returns:

value of the property, can be null

Throws:

EvaluationException - if error during property evaluation

PropertyNotFoundException - if property is not supported

getType

public Class getType(Object propertyKey)
              throws PropertyNotFoundException

Always returns null

Specified by:

getType in interface IContentProvider

Parameters:

propertyKey - the property key of type String or Integer

Returns:

property java Class

Throws:

PropertyNotFoundException - if property is not supported