org.camunda.bpm.engine.impl.pvm.runtime.operation
Class PvmAtomicOperationCancelScope

java.lang.Object
  org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationCancelScope

All Implemented Interfaces:

CoreAtomicOperation<PvmExecutionImpl>, AtomicOperation, PvmAtomicOperation

Direct Known Subclasses:

PvmAtomicOperationActivityStartCancelScope, PvmAtomicOperationTransitionCancelScope

public abstract class PvmAtomicOperationCancelScope
extends Object
implements PvmAtomicOperation

Base class for implementing an atomic operation which performs cancel scope behavior.

Cancel scope behavior is different from "destroy scope" behavior. Destroy scope will delete the scope execution for the current scope. cancel scope will not delete the scope execution itself but will rather

• find the scope execution for the current scope,
• perform an interrupt: this will delete any executions / subprocess instances etc which are child executions of the scope
• set the scope execution to the cancelling activity and move forward.

So as opposed to destroy scope we will not delete the current scope execution but cancel anything that is happening in the current scope and then, still in the current scope, execute the canceling activity.

Usage in BPMN:

In the context of BPMN this behavior is required for interrupting constructs like

• boundary events with cancelActivity="true"
• interrupting event subprocesses,
• terminate end events etc..

Author:

Daniel Meyer, Roman Smirnov

Field Summary

Fields inherited from interface org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperation

ACTIVITY_END, ACTIVITY_EXECUTE, ACTIVITY_NOTIFY_LISTENER_END, ACTIVITY_START, ACTIVITY_START_CANCEL_SCOPE, ACTIVITY_START_CONCURRENT, DELETE_CASCADE, DELETE_CASCADE_FIRE_ACTIVITY_END, FIRE_ACTIVITY_END, PROCESS_END, PROCESS_START, PROCESS_START_INITIAL, TRANSITION_CANCEL_SCOPE, TRANSITION_CREATE_SCOPE, TRANSITION_DESTROY_SCOPE, TRANSITION_NOTIFY_LISTENER_END, TRANSITION_NOTIFY_LISTENER_START, TRANSITION_NOTIFY_LISTENER_TAKE

Constructor Summary

PvmAtomicOperationCancelScope()

Method Summary

void	execute(PvmExecutionImpl execution)
protected abstract ActivityImpl	getCancellingActivity(PvmExecutionImpl execution)
boolean	isAsync(PvmExecutionImpl execution)
protected abstract void	scopeCancelled(PvmExecutionImpl execution)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.camunda.bpm.engine.impl.core.operation.CoreAtomicOperation

getCanonicalName

Constructor Detail

PvmAtomicOperationCancelScope

public PvmAtomicOperationCancelScope()

Method Detail

execute

public void execute(PvmExecutionImpl execution)

Specified by:

execute in interface CoreAtomicOperation<PvmExecutionImpl>

scopeCancelled

protected abstract void scopeCancelled(PvmExecutionImpl execution)

getCancellingActivity

protected abstract ActivityImpl getCancellingActivity(PvmExecutionImpl execution)

isAsync

public boolean isAsync(PvmExecutionImpl execution)

Specified by:

isAsync in interface CoreAtomicOperation<PvmExecutionImpl>