org.apache.shale.clay.component.chain
Class PropertyValueCommand

java.lang.Object
  org.apache.shale.clay.component.chain.AbstractCommand
      org.apache.shale.clay.component.chain.PropertyValueCommand

All Implemented Interfaces:

org.apache.commons.chain.Command

public class PropertyValueCommand
extends AbstractCommand
implements org.apache.commons.chain.Command

This is the catch all Command to handle all attributes that are not an "action", "actionListener", "validator" and "valueChangeListener". This Command is invoked from the AssignPropertiesCommand chain.

Field Summary

Fields inherited from interface org.apache.commons.chain.Command

CONTINUE_PROCESSING, PROCESSING_COMPLETE

Constructor Summary

PropertyValueCommand()

Method Summary

boolean

execute(org.apache.commons.chain.Context context) Looks at the AttributeBean on the ClayContext to see if the value is a binding EL.

Methods inherited from class org.apache.shale.clay.component.chain.AbstractCommand

getCatalog, getCustomizationCatalog, getMessages, getTagUtils, isValueReference, realizeSymbols, replaceMnemonic, replaceMnemonic

Methods inherited from class java.lang.Object

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

Constructor Detail

PropertyValueCommand

public PropertyValueCommand()

Method Detail

execute

public boolean execute(org.apache.commons.chain.Context context)
                throws java.lang.Exception

Looks at the AttributeBean on the ClayContext to see if the value is a binding EL. If it is not it just updates the component with the value. If the attribute is a value binding expression, then a ValueBinding is created. If the attribute uses early binding the ValueBinding is executed and result applied to the component. Otherwise, the binding expression is applied to the component in a prepared state. A true value is always returned because this is the default handler.

Specified by:

execute in interface org.apache.commons.chain.Command

Specified by:

execute in class AbstractCommand

Parameters:

context - common chains

Returns:

true if the chain is complete

Throws:

java.lang.Exception - propagated up to the top of the chain