It is not necessary to both synchronize the method and synchronize on an
object. In fact,
public class classExample {
synchronized void process () {
doSomething();
}
}
is equivalent to:
public class classExample {
void process () {
synchronized(this) {
doSomething();
}
}
}
The time you normally want the Object Synchronization is if you are trying
to synchronize on a resource from more than one class, like:
public class classOne {
protected Object lock;
protected Object value;
Object get () {
synchronized(lock) {
return value;
}
}
}
public class classTwo extends classOne {
void put (Object value) {
synchronized(lock) {
this.value = value;
}
}
}
These are obviously contrived examples, but I hope they help.
(*Chris*)
----- Original Message -----
From: sanjuktas <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, March 09, 1999 12:50 AM
>whilew synchronizing a thread why is it necessary to synchronize on a obj
>when it is already inside a synchronized method ?
>
>Iis it not that it belongs to the synchronized block and thus have mutual
>exclusion. ?
>
>
>ex: public class classEexample{
>
> synchronized void process(){
>
> synchronized(the class lock){
>
>
> }
>
>}
>
>
>Thanks
>
>
>SANJUKTA
>
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