使用JNDI在多个JVM上单例 [英] Singleton on multiple JVMs using JNDI

问题描述

据说Singleton始终基于每个JVM，但是有人要求我在多个JVM中创建一个Singleton实例。我找到了一种解决方案，可以在一个JVM上创建对象，向JNDI注册该对象，然后在不同的JVM上查找该对象。

It is said that Singleton is always on per JVM basis, but somebody asked me to create a singleton instance throughout multiple JVMs. I have found a solution to create an object on one JVM, register it with the JNDI, and lookup that object on different JVMs.

请分享您对此的见解。 / p>

Please share your insight on this.

推荐答案

我的见解是它不起作用。

My insight is that it won't work.

甚至如果您使用JNDI查找单例然后再使用它，则单例也将有效地在您使用的JVM上创建。

Even if you lookup the singleton using JNDI and then use it, the singleton will effectively be created on the JVM you are using as well.

唯一的方法是仅在该单例豆远程。可能是通过RMI之类的。

Only way is to just invoke methods on that singleton bean remotely. May be via something like RMI.

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