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/**
* 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.memory.buffer;
/**
* Represents a collection of MessageQueue instances which are all bound by the
* same memory buffer to fix the amount of RAM used to some uppper bound.
*
* @version $Revision: 1.1 $
*/
public interface MessageBuffer {
int getSize();
/**
* Creates a new message queue instance
*/
MessageQueue createMessageQueue();
/**
* After a message queue has changed we may need to perform some evictions
*
* @param delta
* @param queueSize
*/
void onSizeChanged(MessageQueue queue, int delta, int queueSize);
void clear();
}