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);
}
}
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);
}