public virtual void execute(PvmExecutionImpl execution)
{
ExecutionStartContext executionStartContext = execution.ExecutionStartContext;
InstantiationStack instantiationStack = executionStartContext.InstantiationStack;
IList <PvmActivity> activityStack = instantiationStack.Activities;
PvmActivity currentActivity = activityStack.RemoveAt(0);
PvmExecutionImpl propagatingExecution = execution;
if (currentActivity.Scope)
{
propagatingExecution = execution.createExecution();
execution.Active = false;
propagatingExecution.setActivity(currentActivity);
propagatingExecution.initialize();
}
else
{
propagatingExecution.setActivity(currentActivity);
}
// notify listeners for the instantiated activity
propagatingExecution.performOperation(operationOnScopeInitialization);
}
protected internal override void eventNotificationsCompleted(PvmExecutionImpl execution)
{
base.eventNotificationsCompleted(execution);
execution.activityInstanceStarted();
ExecutionStartContext startContext = execution.ExecutionStartContext;
InstantiationStack instantiationStack = startContext.InstantiationStack;
PvmExecutionImpl propagatingExecution = execution;
ActivityImpl activity = execution.getActivity();
if (activity.ActivityBehavior is ModificationObserverBehavior)
{
ModificationObserverBehavior behavior = (ModificationObserverBehavior)activity.ActivityBehavior;
IList <ActivityExecution> concurrentExecutions = behavior.initializeScope(propagatingExecution, 1);
propagatingExecution = (PvmExecutionImpl)concurrentExecutions[0];
}
// if the stack has been instantiated
if (instantiationStack.Activities.Count == 0 && instantiationStack.TargetActivity != null)
{
// as if we are entering the target activity instance id via a transition
propagatingExecution.ActivityInstanceId = null;
// execute the target activity with this execution
startContext.applyVariables(propagatingExecution);
propagatingExecution.setActivity(instantiationStack.TargetActivity);
propagatingExecution.performOperation(PvmAtomicOperation_Fields.ACTIVITY_START_CREATE_SCOPE);
}
else if (instantiationStack.Activities.Count == 0 && instantiationStack.TargetTransition != null)
{
// as if we are entering the target activity instance id via a transition
propagatingExecution.ActivityInstanceId = null;
// execute the target transition with this execution
PvmTransition transition = instantiationStack.TargetTransition;
startContext.applyVariables(propagatingExecution);
propagatingExecution.setActivity(transition.Source);
propagatingExecution.setTransition((TransitionImpl)transition);
propagatingExecution.performOperation(PvmAtomicOperation_Fields.TRANSITION_START_NOTIFY_LISTENER_TAKE);
}
else
{
// else instantiate the activity stack further
propagatingExecution.setActivity(null);
propagatingExecution.performOperation(PvmAtomicOperation_Fields.ACTIVITY_INIT_STACK);
}
}
public Void callback(PvmExecutionImpl execution)
{
ProcessInstanceStartContext processInstanceStartContext = execution.ProcessInstanceStartContext;
InstantiationStack instantiationStack = processInstanceStartContext.InstantiationStack;
if (instantiationStack.Activities.Count == 0)
{
execution.setActivity(instantiationStack.TargetActivity);
execution.performOperation(PvmAtomicOperation_Fields.ACTIVITY_START_CREATE_SCOPE);
}
else
{
// initialize the activity instance id
execution.ActivityInstanceId = execution.Id;
execution.performOperation(PvmAtomicOperation_Fields.ACTIVITY_INIT_STACK);
}
return(null);
}
protected internal override void eventNotificationsCompleted(PvmExecutionImpl execution)
{
base.eventNotificationsCompleted(execution);
ExecutionStartContext startContext = execution.ExecutionStartContext;
InstantiationStack instantiationStack = startContext.InstantiationStack;
// if the stack has been instantiated
if (instantiationStack.Activities.Count == 0)
{
// done
return;
}
else
{
// else instantiate the activity stack further
execution.setActivity(null);
execution.performOperation(PvmAtomicOperation_Fields.ACTIVITY_INIT_STACK_AND_RETURN);
}
}