1 // Copyright 2016 Google Inc. All rights reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package com.google.archivepatcher.shared; 16 17 import java.io.IOException; 18 import java.io.InputStream; 19 20 /** 21 * A factory that produces multiple independent but identical byte streams exposed via the 22 * {@link InputStream} class. 23 * @param <T> the type of {@link InputStream} that is produced 24 */ 25 public interface MultiViewInputStreamFactory<T extends InputStream> { 26 /** 27 * Create and return a new {@link InputStream}. The returned stream is guaranteed to independently 28 * produce the same byte sequence as any other stream obtained via a call to this method on the 29 * same instance of this object. 30 * @return the stream 31 * @throws IOException if something goes wrong 32 */ 33 public T newStream() throws IOException; 34 } 35
