[jboss-user] [EJB 3.0] - how to prevent multi-access

[john_woo@canada.com]

Hi,

I'm thinking of, let's say when caller A reading data via ejb3, and caller B updates same record, then A wants to update, how can we inform A that the record has just been updated? 

Can we

1. in ejb xml descriptor file, for somehow specify the transaction level, allowing like non-repeatable read;

2. in coding, for somehow
get cachedRowSet

3. using annotation....

Can anyone have idea?

Thanks
John

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