synchronized(x) - how does it work?

I have an object with 3 internal caches that need to be updated, and I want to synchronize it for thread-safety but not excessively. ie, if I am updating cache #1 I only want to lock it, not any of the others. Does the following code work?:public my Object

{

privatestatic List cache1;

privatestatic List cache2;

privatestatic List cache3;

updateCache(List cache)

{

synchronized(cache){

//...update code

}

}

}

Thanks in advance.

[970 byte] By [YoungWinstona] at [2007-11-26 23:59:55]