EventHandlerUtil 类的 iterateOverEventHandlers方法
for (Iterator i = handlerIterator; i.hasNext();)
{
EventHandler eventHandler = (EventHandler) i.next();
if (!eventExecutor.isDone())
{
eventExecutor.execute(eventHandler);
}
}
velocity 遍历EventHandler Iterator
原文：http://www.cnblogs.com/SEC-fsq/p/7258700.html