5

是否有任何java.util.ExecutorService实现可以简单地在调用线程中运行所有已执行的任务?如果默认情况下这不包含在 Java 中,是否有一个库包含这样的实现?

4

3 回答 3

6

您可以使用 Guava com.google.common.util.concurrent.MoreExecutors.sameThreadExecutor() 完全符合您的要求:https ://github.com/google/guava/blob/0434c5199c83c3f43b8b6a86c62e121d518fe7d0/guava/src/com/google/ common/util/concurrent/MoreExecutors.java#L267

编辑:该方法已重命名为 com.google.common.util.concurrent.MoreExecutors.newDirectExecutorService() https://github.com/google/guava/blob/f67ab864bde63fa6602b5688de0440957ffeaa2e/guava/src/com/google/common/util /并发/MoreExecutors.java#L369

于 2013-01-31T19:37:51.923 回答
3

我能找到的唯一现有实现是SynchronousExecutorService- 不幸的是埋在图书馆的某个地方。

在此处粘贴源代码(不带注释)以供将来参考:

package org.apache.camel.util.concurrent;

import java.util.List;
import java.util.concurrent.AbstractExecutorService;
import java.util.concurrent.TimeUnit;

public class SynchronousExecutorService extends AbstractExecutorService {

    private volatile boolean shutdown;

    public void shutdown() {
        shutdown = true;
    }

    public List<Runnable> shutdownNow() {
        return null;
    }

    public boolean isShutdown() {
        return shutdown;
    }

    public boolean isTerminated() {
        return shutdown;
    }

    public boolean awaitTermination(long time, TimeUnit unit) throws InterruptedException {
        return true;
    }

    public void execute(Runnable runnable) {
        runnable.run();
    }

}
于 2012-08-13T20:32:37.350 回答
0

你看过 java.util.concurrent.ThreadPoolExecutor 吗?

于 2012-08-13T20:19:51.400 回答