How to know when all callbacks have arrived

I use code like
for(a thousand times){
org.xbill.dns.SimpleResolver.sendAsync()//query my nameserver
public void receiveMessage(Object id,Message msg){
resolutionsvector.add(msg)
public void handleException(Object id,Exception e){
how do i detect when all callbacks are received?
i tried counting but sometimes the queries match the resolutions while there are still new queries to be created (do not know why thread creation/use is slow sometimes) and sometimes the program fails to detect it has finished.
thought of creating a resolution class for the resolutionsvector saving the state of all queries and using an additional thead to test if all are processed once every second.
is that a way to do it or is there a design pattern for 'joining' the threads without being able to do exactly that (the threads are controled by a resolver class i would like to use without changing it) i should apply (if applies: where do i find documentation?)
best regards
erik

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Mansi
Edited by: MansiSachar on Sep 1, 2008 11:33 PM

Two methods I can quickly think of that will help you,
I am sure that there is better ways of doing it just to lazy to check for and do them.
method 1): Interface
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public GUI(){
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public void threadGroupStarted(){
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public void threadGroupFinnished()
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}

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http://es.groups.yahoo.com/group/desarrolloOracle/

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http://es.groups.yahoo.com/group/desarrolloOracle/

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