001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 */ 019package org.apache.commons.compress.archivers; 020 021/** 022 * Provides information about ArchiveEntry stream offsets. 023 */ 024public interface EntryStreamOffsets { 025 026 /** Special value indicating that the offset is unknown. */ 027 long OFFSET_UNKNOWN = -1; 028 029 /** 030 * Gets the offset of data stream within the archive file, 031 * 032 * @return the offset of entry data stream, {@code OFFSET_UNKNOWN} if not known. 033 */ 034 long getDataOffset(); 035 036 /** 037 * Indicates whether the stream is contiguous, i.e. not split among several archive parts, interspersed with control blocks, etc. 038 * 039 * @return true if stream is contiguous, false otherwise. 040 */ 041 boolean isStreamContiguous(); 042}