Cancels the given Iterable of concurrent Futures. - Java java.util.concurrent

Java examples for java.util.concurrent:Future

  1. HOME
  2. Java
  3. java.util.concurrent
  4. Future

Description

Cancels the given Iterable of concurrent Futures.

Demo Code

/*//from   ww  w  . java2 s. c  o m
 * Copyright 2010-2012 Roger Kapsi
 *
 *   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.java2s;
import java.util.concurrent.Future;
import java.util.concurrent.atomic.AtomicReference;

public class Main {
    /**
     * Cancels the given {@link Iterable} of {@link Future}s.
     */
    public static boolean cancelAll(Iterable<? extends Future<?>> futures,
            boolean mayInterruptIfRunning) {
        boolean success = true;
        if (futures != null) {
            for (Future<?> future : futures) {
                success &= cancel(future, mayInterruptIfRunning);
            }
        }
        return success;
    }

    /**
     * Cancels the given array of {@link Future}s.
     */
    public static boolean cancelAll(Future<?>[] futures,
            boolean mayInterruptIfRunning) {
        boolean success = true;
        if (futures != null) {
            for (Future<?> future : futures) {
                success &= cancel(future, mayInterruptIfRunning);
            }
        }
        return success;
    }

    /**
     * Cancels the given {@link Future}.
     */
    public static boolean cancel(Future<?> future,
            boolean mayInterruptIfRunning) {
        if (future != null) {
            return future.cancel(mayInterruptIfRunning);
        }
        return false;
    }

    /**
     * Cancels the given {@link AtomicReference} of a {@link Future}.
     */
    public static boolean cancel(
            AtomicReference<? extends Future<?>> futureRef,
            boolean mayInterruptIfRunning) {
        if (futureRef != null) {
            return cancel(futureRef.get(), mayInterruptIfRunning);
        }
        return false;
    }
}

Related Tutorials