public override Boolean take(IToken token)
{
Boolean oldAlive = token.IsAlive;
EdgeInstanceEvent e = new EdgeInstanceEvent(this);
e.Token = token;
e.EventType = EdgeInstanceEventEnum.ON_TAKING_THE_TOKEN;
for (int i = 0; this.eventListeners != null && i < this.eventListeners.Count; i++)
{
IEdgeInstanceEventListener listener = this.eventListeners[i];
listener.onEdgeInstanceEventFired(e);
}
Boolean newAlive = token.IsAlive;
if (!newAlive)
{//循环条件不满足，则恢复token的alive标示
token.IsAlive = oldAlive;
return(newAlive);
}
else
{//否则流转到下一个节点
INodeInstance nodeInst = this.LeavingNodeInstance;
token.Value = this.Weight;
nodeInst.fire(token);//触发同步器节点
return(newAlive);
}
}
/// <summary>节点实例监听器</summary>
public void onEdgeInstanceEventFired(EdgeInstanceEvent e)
{
if (e.EventType == EdgeInstanceEventEnum.ON_TAKING_THE_TOKEN)
{
IToken token = e.Token;
// 计算token的alive值
ILoopInstance transInst = (ILoopInstance)e.getSource();
String condition = transInst.Loop.Condition;
calculateTheAliveValue(token, condition);
if (this.RuntimeContext.IsEnableTrace && token.IsAlive)
{
ProcessInstanceTrace trace = new ProcessInstanceTrace();
trace.ProcessInstanceId = e.Token.ProcessInstanceId;
trace.StepNumber = e.Token.StepNumber + 1;
trace.Type = ProcessInstanceTraceEnum.LOOP_TYPE;
trace.FromNodeId = transInst.Loop.FromNode.Id;
trace.ToNodeId = transInst.Loop.ToNode.Id;
trace.EdgeId = transInst.Loop.Id;
//TODO wmj2003 一旦token从当前边上经过，那么就保存流程运行轨迹,这里应该是insert
RuntimeContext.PersistenceService.SaveOrUpdateProcessInstanceTrace(trace);
}
}
}
public override Boolean take(IToken token)
{
EdgeInstanceEvent e = new EdgeInstanceEvent(this);
e.Token = token;
e.EventType = EdgeInstanceEventEnum.ON_TAKING_THE_TOKEN;
for (int i = 0; this.eventListeners != null && i < this.eventListeners.Count; i++)
{
IEdgeInstanceEventListener listener = this.eventListeners[i];
listener.onEdgeInstanceEventFired(e);//调用TransitionInstanceExtension 来计算弧线上的条件表达式
}
INodeInstance nodeInst = this.LeavingNodeInstance; //获取到流向哪个节点
token.Value = this.Weight; //获取到弧线上的权值
Boolean alive = token.IsAlive;
nodeInst.fire(token);//节点触发
return(alive);
}
/// <summary>节点实例监听器</summary>
public void onEdgeInstanceEventFired(EdgeInstanceEvent e)
{
if (e.EventType == EdgeInstanceEventEnum.ON_TAKING_THE_TOKEN)
{
IToken token = e.Token;
ITransitionInstance transInst = (ITransitionInstance)e.getSource();
String condition = transInst.Transition.Condition;
calculateTheAliveValue(token, condition);
if (this.RuntimeContext.IsEnableTrace && token.IsAlive)
{
Transition transition = transInst.Transition;
IWFElement fromNode = transition.FromNode;
int minorNumber = 1;
if (fromNode is Activity)
{
minorNumber = 2;
}
else
{
minorNumber = 1;
}
ProcessInstanceTrace trace = new ProcessInstanceTrace();
trace.ProcessInstanceId = e.Token.ProcessInstanceId;
trace.StepNumber = e.Token.StepNumber;
trace.Type = ProcessInstanceTraceEnum.TRANSITION_TYPE;
trace.FromNodeId = transInst.Transition.FromNode.Id;
trace.ToNodeId = transInst.Transition.ToNode.Id;
trace.EdgeId = transInst.Transition.Id;
trace.MinorNumber = minorNumber;
//TODO wmj2003 这里应该是insert。一旦token从当前边上经过，那么就保存流程运行轨迹.
RuntimeContext.PersistenceService.SaveOrUpdateProcessInstanceTrace(trace);
}
}
}