Can a lock be acquired on a class?

Question Posted / guest

3 Answers
10887 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

Can a lock be acquired on a class?..

Answer / ravikiran(aptech mumbai)

yes indirectly because we can aquire a lock on the object of
the class.And for the class level lock we make use of static
synchromnized block.

Is This Answer Correct ?

8 Yes

2 No

Can a lock be acquired on a class?..

Answer / jamshed katta

A lock can be acquired on a class, you would want to do that if you are using static methods in your class, in which case there would be only one copy, so you would need a lock on the class rather than the instance.
Eg:

public static int getPageHits{ // Not synchronized
return hits;
}

so, now instead of using

public static int getPageHits{
synchronized(this){
return hits;
}
}

you would rather do

public static int getPageHits{

synchronized(ClassName.class){
return hits;
}

}

where ClassName is the name of the class whose lock u are trying to acquire.

you could also use Class.forName("ClassName")

Is This Answer Correct ?

5 Yes

0 No

Can a lock be acquired on a class?..

Answer / janet

Yes, a lock can be acquired on a class. This lock is
acquired on the class?s Class object.

Is This Answer Correct ?

4 Yes

0 No

Post New Answer