/*

* Copyright (C) 2015 Mr.Simple <bboyfeiyu@gmail.com>

*

* Licensed under the Apache License, Version 2.0 (the "License");

* you may not use this file except in compliance with the License.

* You may obtain a copy of the License at

*

* http://www.apache.org/licenses/LICENSE-2.0

*

* Unless required by applicable law or agreed to in writing, software

* distributed under the License is distributed on an "AS IS" BASIS,

* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

* See the License for the specific language governing permissions and

* limitations under the License.

*/

package org.simple.eventbus;

/**

* <p>

* 该类是描述一个函数唯一性的对象，参数类型、tag两个条件保证了对象的唯一性.通过该类的对象来查找注册了相应类型和tag的所有订阅者{@see

* Subscription}, 并且在接到消息时调用所有订阅者对应的函数.

*

* @author mrsimple

*/

public final class EventType {

/**

* 默认的tag

*/

public static final String DEFAULT_TAG = "default_tag";

/**

* 参数类型

*/

Class<?> paramClass;

/**

* 函数的tag

*/

public String tag = DEFAULT_TAG;

public Object event ;

/**

* @param aClass

*/

public EventType(Class<?> aClass) {

this(aClass, DEFAULT_TAG);

}

public EventType(Class<?> aClass, String aTag) {

paramClass = aClass;

tag = aTag;

}

@Override

public String toString() {

return "EventType [paramClass=" + paramClass.getName() + ", tag=" + tag + "]";

}

@Override

public int hashCode() {

final int prime = 31;

int result = 1;

result = prime * result + ((paramClass == null) ? 0 : paramClass.hashCode());

result = prime * result + ((tag == null) ? 0 : tag.hashCode());

return result;

}

@Override

public boolean equals(Object obj) {

if (this == obj)

return true;

if (obj == null)

return false;

if (getClass() != obj.getClass())

return false;

EventType other = (EventType) obj;

if (paramClass == null) {

if (other.paramClass != null)

return false;

} else if (!paramClass.equals(other.paramClass))

return false;

if (tag == null) {

if (other.tag != null)

return false;

} else if (!tag.equals(other.tag))

return false;

return true;

}

}