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New CAS id after update (Java SDK)

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Mon, 11/12/2012 - 15:37
rahulaga
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Joined: 09/06/2012
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I using the latest java SDK 1.1dp4

I am attempting to use the casId as an optimistic locking mechanism by providing it to the client. Flow:
1. gets -> return object + casId to client
2. cas -> client provides the casId and new value

The problem I have is with the cas method returning CASResponse which is an enum. It does not return the *new* casId after the update. I would have to issue a new "gets" which may not return the correct casId (other threads may have gets/cas in the meantime).

Maybe this is a new feature request or I am missing something?

Thanks

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Wed, 11/14/2012 - 10:36
mikew
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Try using the asyncCas() function which returns an OperationFuture. You should be able to call getCas() from the returned value.

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Wed, 11/14/2012 - 11:36
rahulaga
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Joined: 09/06/2012
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Brilliant, thanks Mike! Looks like I need to undo own implementation and use this :)

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