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/*
* Copyright (c) 2009, Paul Merlin. All Rights Reserved.
*
* 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.codeartisans.java.sos.messagebus;
/**
* Registration reference holder for a Veto handling a MessageType on a MessageBus.
*
* @author Paul Merlin
*/
public final class VetoRegistration
{
private final MessageBus msgBus;
private final Veto veto;
private final MessageType type;
/**
* Build a Registration reference holder for a Veto handling a MessageType on a MessageBus.
*
* @param Registration's Subscriber
* @param msgBus Host MessageBus
* @param type Registration's MessageType
* @param veto Veto
*/
/* package */ VetoRegistration( MessageBus msgBus, MessageType type, Veto veto )
{
this.msgBus = msgBus;
this.veto = veto;
this.type = type;
}
/**
* Unsubscribe from the host MessageBus.
*
* Unsubscription can be done on the MessageBus without reference to this VetoRegistration,
* you'd better stick to one way per application layer to avoid spaghetti code.
*/
@SuppressWarnings( "unchecked" )
public void unregister()
{
msgBus.unregisterVeto( ( MessageType ) type, veto );
}
}