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Will singleton work in multiple Vms

1 reply on 1 page. Most recent reply: Sep 19, 2002 9:41 AM by Don Hill

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Babu Reddy

Posts: 7
Nickname: babureddy
Registered: Jun, 2002

Will singleton work in multiple Vms Posted: Sep 18, 2002 4:17 AM
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Will the Singleton implementation work if Apllication is deployed on a machine having multiple Virtual machines


Don Hill

Posts: 70
Nickname: ssswdon
Registered: Jul, 2002

Re: Will singleton work in multiple Vms Posted: Sep 19, 2002 9:41 AM
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Are you referring to seperate JVM, in that case no, remember there can only be one instance per jvm, the pools aren't shared accross VM. Take the case of a static method, there is one copy per JVM so if I have JVM one do a set on a static method and JVM 2 call a get, the value won't be there be cause the object pools are different.

You would need to create some other type of persistance mech to do this ie:persist to db or file system.


HTH

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