org.apache.commons.workflow.io
Class PeekStep

java.lang.Object
  org.apache.commons.workflow.base.BaseStep
      org.apache.commons.workflow.io.PeekStep

All Implemented Interfaces:

Step

public class PeekStep
extends BaseStep

Write the top value from the evaluation stack to standard output, without removing it.

WARNING - This will probably be replaced later by a more general purpose input/output mechanism.

Version:

$Revision: 155475 $ $Date: 2005-02-26 13:31:11 +0000 (Sat, 26 Feb 2005) $

Author:

Craig R. McClanahan

Field Summary

Fields inherited from class org.apache.commons.workflow.base.BaseStep

id, nextStep, owner, previousStep

Constructor Summary

PeekStep()
Construct a default instance of this Step.

PeekStep(String id)
Construct an instance of this Step with the specified identifier.

Method Summary

void	execute(Context context) Perform the executable actions related to this Step, in the context of the specified Context.

Methods inherited from class org.apache.commons.workflow.base.BaseStep

getId, getNextStep, getOwner, getPreviousStep, setId, setNextStep, setOwner, setPreviousStep

Methods inherited from class java.lang.Object

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

Constructor Detail

PeekStep

public PeekStep()

Construct a default instance of this Step.

PeekStep

public PeekStep(String id)

Construct an instance of this Step with the specified identifier.

Parameters:

id - Step identifier

Method Detail

execute

public void execute(Context context)
             throws StepException

Perform the executable actions related to this Step, in the context of the specified Context.

Specified by:

execute in interface Step

Specified by:

execute in class BaseStep

Parameters:

context - The Context that is tracking our execution state

Throws:

StepException - if a processing error has occurred