Package org.apache.commons.chain.impl

Class DelegatingCommand

java.lang.Object

org.apache.commons.chain.impl.NonDelegatingCommand

org.apache.commons.chain.impl.DelegatingCommand

All Implemented Interfaces:

Command<Context>

public class DelegatingCommand
extends NonDelegatingCommand

Implementation of Command that logs its identifier and and delegates to the rest of the chain.

Version:

$Revision$ $Date$

Author:

Craig R. McClanahan

Field Summary

Fields inherited from class org.apache.commons.chain.impl.NonDelegatingCommand

id

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

CONTINUE_PROCESSING, PROCESSING_COMPLETE

Constructor Summary

Constructors

Constructor	Description
DelegatingCommand()
DelegatingCommand(String id)	Construct an instance that will log the specified identifier

Method Summary

Modifier and Type	Method	Description
boolean	execute(Context context)	Execution method for this Command

Methods inherited from class org.apache.commons.chain.impl.NonDelegatingCommand

log, setId

Methods inherited from class java.lang.Object

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

Constructor Details

DelegatingCommand

public DelegatingCommand()

DelegatingCommand

public DelegatingCommand(String id)

Construct an instance that will log the specified identifier

Parameters:

id - identifier to log for this Command instance

Method Details

execute

public boolean execute(Context context)
                throws Exception

Execution method for this Command

Specified by:

execute in interface Command<Context>

Overrides:

execute in class NonDelegatingCommand

Parameters:

context - The Context to be processed by this Command

Returns:

true if the processing of this Context has been completed, or false if the processing of this Context should be delegated to a subsequent Command in an enclosing Chain

Throws:

Exception - general purpose exception return to indicate abnormal termination

IllegalArgumentException - if context is null