/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.synapse.message.store;
/**
* An implementation of this interface can be registered with a Message store instance to receive
* Message store update update events. When ever a message is added/removed events defined in this
* interface will be fired
*/
public interface MessageStoreObserver {
/**
* Method invoked when a message is added to the store
* @param messageId of the message that was added to the Message store
*/
public void messageAdded(String messageId);
/**
* Method invoked when a message is removed from the store
* @param messageId of the Message that was removed
*/
public void messageRemoved(String messageId);
}