/**
* 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.activemq.store;
import org.apache.activemq.broker.ConnectionContext;
import org.apache.activemq.command.Message;
/**
* callback when the index is updated, allows ordered work to be seen by destinations
*/
public interface IndexListener {
final class MessageContext {
public final Message message;
public final ConnectionContext context;
public final Runnable onCompletion;
public boolean duplicate;
public MessageContext(ConnectionContext context, Message message, Runnable onCompletion) {
this.context = context;
this.message = message;
this.onCompletion = onCompletion;
}
}
/**
* called with some global index lock held so that a listener can do order
* dependent work
* non null MessageContext.onCompletion called when work is done
*/
public void onAdd(MessageContext messageContext);
}