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我正在研究一個類，WorkflowParent，它既是EventEmitter也是子類型爲EventEmitter的屬性。NodeJS EventEmitter沒有觸發
我想讓這個類從它的子屬性中截取一些事件並用不同的事件名重新發射它們。
看起來我正在做對，但它不工作。這裏是我的代碼：
var _ = require('lodash');
var EventEmitter = require('events').EventEmitter;
var awsswf = require('aws-swf');
var swf = awsswf.createClient();
var util = require('util');
function WorkflowParent(){
EventEmitter.call(this);
var me = this;
//Create decider object
me.decider = new awsswf.Decider({}); // <---- THIS IS AN EventEmitter
//Emit events from `decider` and `actor` objects
['poll'].forEach(function(eventName){
me.decider.on(eventName, function(event){
console.log('decider event "'+eventName+'"', event); // <---- THIS IS EXECUTED
var attached = me.emit(eventName+'.decider', event); // emit "poll.decider" event
console.log('attached to poll.decider event?', attached); // <---- THIS IS `false`
});
});
}
util.inherits(WorkflowParent, EventEmitter);
WorkflowParent.prototype.start = function(){
this.on('poll.decider', function(event){
console.log('poll.decider event triggered!'); // <---- THIS NEVER RUNS
});
this.decider.start();
};
module.exports = new WorkflowParent();