Java围绕锁同步语句 [英] Java synchronize statement around a lock

问题描述

我想知道

synchronize (lock) {
    ... 
}

其中lock是java.util.concurrent.locks.Lock的实例，将lock像其他任何对象一样对待，或作为try-finally惯用语(即

Where lock is an instance of java.util.concurrent.locks.Lock, treats lock like any other object or as the try-finally idiom i.e.

 lock.lock(); 
 try {
     ... 
 } finally { 
    lock.unlock();
 }

推荐答案

请注意，Lock实例只是 普通物体，它们本身可以是 用作同步对象 陈述.获取显示器锁 未指定Lock实例 与调用任何 该实例的lock()方法.它是 建议避免混淆 您永远不会在此使用Lock实例 方式，除了自己内 实施.

Note that Lock instances are just normal objects and can themselves be used as the target in a synchronized statement. Acquiring the monitor lock of a Lock instance has no specified relationship with invoking any of the lock() methods of that instance. It is recommended that to avoid confusion you never use Lock instances in this way, except within their own implementation.

因此，基本上，它被视为任何其他对象.而且，不要那样做.

So basically, it's treated as any other object. And, don't do that.

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