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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.littleshoot.mina.common;

/**
 * Allocates {@link ByteBuffer}s and manages them.  Please implement this
 * interface if you need more advanced memory management scheme.
 * 
 * @author The Apache Directory Project ([email protected])
 * @version $Rev: 555855 $, $Date: 2007-07-13 12:19:00 +0900 (Fri, 13 Jul 2007) $
 */
public interface ByteBufferAllocator {
    /**
     * Returns the buffer which is capable of the specified size.
     * 
     * @param capacity the capacity of the buffer
     * @param direct true to get a direct buffer,
     *               false to get a heap buffer.
     */
    ByteBuffer allocate(int capacity, boolean direct);

    /**
     * Wraps the specified NIO {@link java.nio.ByteBuffer} into MINA buffer.
     */
    ByteBuffer wrap(java.nio.ByteBuffer nioBuffer);

    /**
     * Dispose of this allocator.
     */
    void dispose();
}




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