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help me with unique client Ids

Siddharth Mehrotra
Ranch Hand

Joined: Aug 21, 2001
Posts: 185
hi guys.
can anyone help me in getting unique client ids.
i 'am using hashcode to generate it.
but if i start two clients on the same JVM then the clientID remains same. well that doesnot create a problem in standalone mode.
but for n/w mode this will be a big problem.
even though it is a ridiculous thought of having two clinets running n/w access from same system.
point to note is that i'am generating unique ids on the client( i hope i'am doing proper)


SCJP, SCJD.
Leonardo Penha
Ranch Hand

Joined: Feb 15, 2002
Posts: 68
There is a class in the JDK which called VMID. It should help you solve your problem.


Leonardo Penha<br />SCJP, SCJD, SCWCD, SCEA, SCMAD, SCDJWS
Michael Morris
Ranch Hand

Joined: Jan 30, 2002
Posts: 3451
Hi Siddharth,
Some more possibilities are UID and ObjID. I haven't got this one totally worked out either. So if you come up with something solid let me know.
Michael Morris


Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius - and a lot of courage - to move in the opposite direction. - Ernst F. Schumacher
xiaoma wang
Ranch Hand

Joined: Mar 04, 2002
Posts: 74
hi,
In my design, i have a class names IDGenerator and only has one static method: generateId() and a static int variable. whenever this method is called, it will return a unique "id". let this class work in your server in which u want a unique id return to the client.
Hope it helps!
Xiaoma Wang
Siddharth Mehrotra
Ranch Hand

Joined: Aug 21, 2001
Posts: 185
hi,
i'm using java.rmi.server.UID class for generating unique ids.
and it does generate unique ids.
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: help me with unique client Ids