How to use wait(), notify() methods in static synchronized methods.

[Narasimha Rao B.]

Hi,
Some one can explain me, how to call wait(), notify() methods from static synchronized methods, with some practicle example.
Or direct me, where i can the examples on the net.
Thanks in Advance.

[Sindhur Sat]

Hi,
You can use a third party object's lock in a synchronized block to do that.
All this in a static method:

  
  synchronized(obj){
    <some code>
    obj.wait()
  }
  
  synchronized(obj){
    <some code>
    obj.notifyAll()
  }

obj is the third party object.
Hope that helps,
Sindhur.

[Narasimha Rao B.]

Hi Sindhur,

Thanks for reply.
Here my request is, how to use wait() and notify() methods in static synchronized methods. Not in blocks.
I hope you got my point.
Thanks..

[Sindhur Sat]

Narasimha,
You cannot call wait() and notify() from a static context without a third party object.
Reason:
no object lock to wait on.
Remember wait and notify are not static methods they cannot be called from a static context unless you call it with an object instance, in which case you have to own its lock in the first place, hence the synchronized block.
K&B explain it very well.
Sindhur.
[ March 06, 2004: Message edited by: Sindhur Sat ]