org.apache.commons.workflow.core
Class CallStep

java.lang.Object
  org.apache.commons.workflow.base.BaseStep
      org.apache.commons.workflow.core.CallStep

All Implemented Interfaces:

Step

public class CallStep
extends BaseStep

Pop the top value from the evaluation stack, which must be an Activity, and initiate a "subroutine call" to execute this Activity before resuming the current one.

NOTE - The means by which the Activity on the top of the stack was acquired is NOT mandated by this Step implementation.

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

CallStep()
Construct a default instance of this Step.

CallStep(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

CallStep

public CallStep()

Construct a default instance of this Step.

CallStep

public CallStep(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