001/* 002 * ==================================================================== 003 * Licensed to the Apache Software Foundation (ASF) under one 004 * or more contributor license agreements. See the NOTICE file 005 * distributed with this work for additional information 006 * regarding copyright ownership. The ASF licenses this file 007 * to you under the Apache License, Version 2.0 (the 008 * "License"); you may not use this file except in compliance 009 * with the License. You may obtain a copy of the License at 010 * 011 * http://www.apache.org/licenses/LICENSE-2.0 012 * 013 * Unless required by applicable law or agreed to in writing, 014 * software distributed under the License is distributed on an 015 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 016 * KIND, either express or implied. See the License for the 017 * specific language governing permissions and limitations 018 * under the License. 019 * ==================================================================== 020 * 021 * This software consists of voluntary contributions made by many 022 * individuals on behalf of the Apache Software Foundation. For more 023 * information on the Apache Software Foundation, please see 024 * <http://www.apache.org/>. 025 * 026 */ 027 028package org.apache.http.io; 029 030/** 031 * Basic buffer properties. 032 * 033 * @since 4.1 034 */ 035public interface BufferInfo { 036 037 /** 038 * Return length data stored in the buffer 039 * 040 * @return data length 041 */ 042 int length(); 043 044 /** 045 * Returns total capacity of the buffer 046 * 047 * @return total capacity 048 */ 049 int capacity(); 050 051 /** 052 * Returns available space in the buffer. 053 * 054 * @return available space. 055 */ 056 int available(); 057 058}