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// Copyright 2016 Google Inc. All rights reserved.
//
// Licensed 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 com.google.archivepatcher.shared;
import java.io.IOException;
import java.io.InputStream;
/**
* A factory that produces multiple independent but identical byte streams exposed via the
* {@link InputStream} class.
* @param <T> the type of {@link InputStream} that is produced
*/
public interface MultiViewInputStreamFactory<T extends InputStream> {
/**
* Create and return a new {@link InputStream}. The returned stream is guaranteed to independently
* produce the same byte sequence as any other stream obtained via a call to this method on the
* same instance of this object.
* @return the stream
* @throws IOException if something goes wrong
*/
public T newStream() throws IOException;
}
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