001/** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.activemq.transport.udp; 018 019import java.nio.ByteBuffer; 020 021import org.apache.activemq.Service; 022 023/** 024 * Represents a pool of {@link ByteBuffer} instances. 025 * This strategy could just create new buffers for each call or 026 * it could pool them. 027 * 028 * 029 */ 030public interface ByteBufferPool extends Service { 031 032 /** 033 * Extract a buffer from the pool. 034 */ 035 ByteBuffer borrowBuffer(); 036 037 /** 038 * Returns the buffer to the pool or just discards it for a non-pool strategy 039 */ 040 void returnBuffer(ByteBuffer buffer); 041 042 /** 043 * Sets the default size of the buffers 044 */ 045 void setDefaultSize(int defaultSize); 046 047}