/// <summary> /// Actual implementation of leaving an activity. /// </summary> /// <param name="execution"> /// The current execution context </param> /// <param name="checkConditions"> /// Whether or not to check conditions before determining whether or /// not to take a transition. </param> protected internal virtual void performOutgoingBehavior(ActivityExecution execution, bool checkConditions, IList <ActivityExecution> reusableExecutions) { LOG.leavingActivity(execution.Activity.Id); string defaultSequenceFlow = (string)execution.Activity.getProperty("default"); IList <PvmTransition> transitionsToTake = new List <PvmTransition>(); IList <PvmTransition> outgoingTransitions = execution.Activity.OutgoingTransitions; foreach (PvmTransition outgoingTransition in outgoingTransitions) { if (string.ReferenceEquals(defaultSequenceFlow, null) || !outgoingTransition.Id.Equals(defaultSequenceFlow)) { Condition condition = (Condition)outgoingTransition.getProperty(BpmnParse.PROPERTYNAME_CONDITION); if (condition == null || !checkConditions || condition.evaluate(execution)) { transitionsToTake.Add(outgoingTransition); } } } if (transitionsToTake.Count == 1) { execution.leaveActivityViaTransition(transitionsToTake[0]); } else if (transitionsToTake.Count >= 1) { if (reusableExecutions == null || reusableExecutions.Count == 0) { execution.leaveActivityViaTransitions(transitionsToTake, Arrays.asList(execution)); } else { execution.leaveActivityViaTransitions(transitionsToTake, reusableExecutions); } } else { if (!string.ReferenceEquals(defaultSequenceFlow, null)) { PvmTransition defaultTransition = execution.Activity.findOutgoingTransition(defaultSequenceFlow); if (defaultTransition != null) { execution.leaveActivityViaTransition(defaultTransition); } else { throw LOG.missingDefaultFlowException(execution.Activity.Id, defaultSequenceFlow); } } else if (outgoingTransitions.Count > 0) { throw LOG.missingConditionalFlowException(execution.Activity.Id); } else { if (((ActivityImpl)execution.Activity).CompensationHandler && isAncestorCompensationThrowing(execution)) { execution.endCompensation(); } else { LOG.missingOutgoingSequenceFlow(execution.Activity.Id); execution.end(true); } } } }