"wolfc" wrote : Use the @Version annotation, see EJB 3 Persistence 9.1.17.
|
| @Version
| | @Column(name="OPTLOCK")
| | protected int getVersionNum() { return versionNum; }
Thanks for the reply. but where is the document?
further question:
what's the mechanism using @version? I meant we don't have to do it that way,
ex. we can use like timestamp field, and treat that field as just regular
field, before modifying a record, simply compare the timestamp values.
John
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