/// <summary>
/// Gets called when the parent model element of the current model element is about to change
/// </summary>
/// <param name="oldParent">The old parent model element</param>
/// <param name="newParent">The new parent model element</param>
protected override void OnParentChanging(IModelElement newParent, IModelElement oldParent)
{
IBranchAction oldBranchAction_AbstractBranchTransition = ModelHelper.CastAs <IBranchAction>(oldParent);
IBranchAction newBranchAction_AbstractBranchTransition = ModelHelper.CastAs <IBranchAction>(newParent);
ValueChangedEventArgs e = new ValueChangedEventArgs(oldBranchAction_AbstractBranchTransition, newBranchAction_AbstractBranchTransition);
this.OnBranchAction_AbstractBranchTransitionChanging(e);
this.OnPropertyChanging("BranchAction_AbstractBranchTransition", e, _branchAction_AbstractBranchTransitionReference);
}
/// <summary>
/// Executes the specified activity.
/// </summary>
/// <param name="activity">The activity.</param>
protected override void ExecuteActivity(Activity activity)
{
activity.OnInitialize(this);
//执行当前动作
activity.OnExecute(this);
//如果工作流动作完成,那么移动到下一步状态
if (activity.ExecutionStatus == ActivityExecutionStatus.Closed)
{
//添加当前动作到动作列表中
executedActivities.Add(activity);
if (activity is IBranchAction)
{
//分支动作,需要获取分支执行后选定的状态
IBranchAction branch = (IBranchAction)activity;
MoveOn(branch.GetSelectedState());
}
else
{
//顺序动作,从动作针对的事件名称中获取状态
ApprovalEvent currentEvent = CurrentState.GetEventByName(activity.EventName);
MoveOn(currentEvent.NextStateNames[0]);
}
}
//保存
Save();
if (this.stateRecordNames.Count > 0)
{
WorkflowRuntime.Current.OnWorkflowExecuted(new StateChangedEventArgs(this, this.stateRecordNames[stateRecordNames.Count - 1], stateName));
}
//如果是子流程的执行完成,那么还有判断其父流程是否也已经执行完毕,如果执行完毕,那么设置其父流程的下一步状态
if (this.CurrentStatus == WorkflowExecutionStatus.Closed && parentId != null && parentId != Guid.Empty)
{
StateMachineWorkflowInstance parentInstance = (StateMachineWorkflowInstance)WorkflowRuntime.Current.GetInstance(parentId);
parentInstance.OnChildFinished(this);
}
else if (this.CurrentStatus == WorkflowExecutionStatus.Aborted)
{
WorkflowRuntime.Current.OnWorkflowTerminated(new StateChangedEventArgs(this, this.stateRecordNames[stateRecordNames.Count - 1], stateName));
}
if (IsEnd())
{
WorkflowRuntime.Current.OnWorkflowCompleted(new StateChangedEventArgs(this, this.stateRecordNames[stateRecordNames.Count - 1], stateName));
}
}
/// <summary>
/// Gets called when the parent model element of the current model element changes
/// </summary>
/// <param name="oldParent">The old parent model element</param>
/// <param name="newParent">The new parent model element</param>
protected override void OnParentChanged(IModelElement newParent, IModelElement oldParent)
{
IBranchAction oldBranchAction_AbstractBranchTransition = ModelHelper.CastAs <IBranchAction>(oldParent);
IBranchAction newBranchAction_AbstractBranchTransition = ModelHelper.CastAs <IBranchAction>(newParent);
if ((oldBranchAction_AbstractBranchTransition != null))
{
oldBranchAction_AbstractBranchTransition.Branches_Branch.Remove(this);
}
if ((newBranchAction_AbstractBranchTransition != null))
{
newBranchAction_AbstractBranchTransition.Branches_Branch.Add(this);
}
ValueChangedEventArgs e = new ValueChangedEventArgs(oldBranchAction_AbstractBranchTransition, newBranchAction_AbstractBranchTransition);
this.OnBranchAction_AbstractBranchTransitionChanged(e);
this.OnPropertyChanged("BranchAction_AbstractBranchTransition", e, _branchAction_AbstractBranchTransitionReference);
base.OnParentChanged(newParent, oldParent);
}
/// <summary>
/// Adds the given element to the collection
/// </summary>
/// <param name="item">The item to add</param>
public override void Add(IModelElement item)
{
if ((this._parent.BranchAction_AbstractBranchTransition == null))
{
IBranchAction branchAction_AbstractBranchTransitionCasted = item.As <IBranchAction>();
if ((branchAction_AbstractBranchTransitionCasted != null))
{
this._parent.BranchAction_AbstractBranchTransition = branchAction_AbstractBranchTransitionCasted;
return;
}
}
if ((this._parent.BranchBehaviour_BranchTransition == null))
{
IResourceDemandingBehaviour branchBehaviour_BranchTransitionCasted = item.As <IResourceDemandingBehaviour>();
if ((branchBehaviour_BranchTransitionCasted != null))
{
this._parent.BranchBehaviour_BranchTransition = branchBehaviour_BranchTransitionCasted;
return;
}
}
}
