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Voovan is a java framwork and it not depends on any third-party framework.

There is a newer version: 4.3.8

package org.voovan.network;

/**
 * 事件对象
 *
 * @author helyho
 *
 * Voovan Framework.
 * WebSite: https://github.com/helyho/Voovan
 * Licence: Apache v2 License
 */
public class Event {
	private IoSession session;
	private EventName name;
	private Object other;

	/**
	 * 事件名称枚举
	 * @author helyho
	 *
	 */
	public enum EventName {
		ON_ACCEPTED, ON_CONNECT, ON_DISCONNECT, ON_RECEIVE, ON_SENT, ON_FLUSH, ON_IDLE, ON_EXCEPTION
	}

	/**
	 * 构造函数
	 */
	public Event(){

	}

	/**
	 * 构造函数
	 * @param session  会话对象
	 * @param name		事件名
	 * @param other 附加对象
	 */
	public Event (IoSession session,EventName name,Object other){
		init(session, name, other);
	}

	/**
	 * 构造函数
	 * @param session  会话对象
	 * @param name		事件名
	 * @param other 附加对象
	 */
	public void init (IoSession session,EventName name,Object other){
		if(session == null){
			throw new NullPointerException("Can't create Event with session parameter is null");
		}
		this.session = session;
		this.name = name;
		this.other = other;
	}

	public IoSession getSession() {
		return session;
	}

	public void setSession(IoSession session) {
		this.session = session;
	}

	public EventName getName() {
		return name;
	}

	public void setName(EventName name) {
		this.name = name;
	}

	public Object getOther() {
		return other;
	}

	public void setOther(Object other) {
		this.other = other;
	}

	@Override
	public int hashCode(){
		return session.hashCode()+name.hashCode();
	}

	@Override
	public boolean equals(Object obj){
		if(obj != null && obj instanceof Event){
			Event compareEvent = (Event) obj;
			if(session!=null && name != null
					&& session.equals(compareEvent.getSession())
					&& name.equals(compareEvent.getName())) {
				return true;
			} else {
				return false;
			}
		} else {
			return false;
		}
	}

	/**
	 * 活的新的实例
	 * @param session   Session 对象
	 * @param name      事件名称
	 * @param other     附属对象
	 * @return   事件对象
	 */
	public static Event getInstance(IoSession session, EventName name,Object other){
		return new Event(session, name, other);
	}

}