001    /*
002     * Copyright (C) 2009 Google Inc.
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    
017    package com.google.common.util.concurrent;
018    
019    import com.google.common.annotations.Beta;
020    
021    import java.util.concurrent.ExecutionException;
022    import java.util.concurrent.Future;
023    import java.util.concurrent.TimeUnit;
024    import java.util.concurrent.TimeoutException;
025    
026    /**
027     * A {@code Future} whose {@code get} calls cannot be interrupted. If a thread
028     * is interrupted during such a call, the call continues to block until the
029     * result is available or the timeout elapses, and only then re-interrupts the
030     * thread. Obtain an instance of this type using {@link
031     * Futures#makeUninterruptible(Future)}.
032     *
033     * @author Kevin Bourrillion
034     * @since 1
035     */
036    @Beta
037    public interface UninterruptibleFuture<V> extends Future<V> {
038      @Override V get() throws ExecutionException;
039    
040      @Override V get(long timeout, TimeUnit unit)
041          throws ExecutionException, TimeoutException;
042    }