org.apache.commons.workflow.core
Class SwapStep

java.lang.Object
  extended by org.apache.commons.workflow.base.BaseStep
      extended by org.apache.commons.workflow.core.SwapStep
All Implemented Interfaces:
Step

public class SwapStep
extends BaseStep

Swap the positions of the top two values on the evaluation stack.

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
SwapStep()
          Construct a default instance of this Step.
SwapStep(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

SwapStep

public SwapStep()
Construct a default instance of this Step.


SwapStep

public SwapStep(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


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