1 Reply Latest reply on Jul 21, 2006 5:23 AM by scraatz

[EJB 3.0] EntityBean (table) shared between EntityManger and

supradiz Jul 21, 2006 3:41 AM

Hello , I'am a beginner in EJB 3.

configuration:
JBOSS 4 + EJB 3.
Oracle.

procedure:
1\ I persist and object in database (Oracle) using entitymanager. (primary key generate AUTO)

2\ I add manually an object in database unsing JDBC (increment last primary key genrate by 1)

3\ I try to persist and other object in database using entitymanger but i obtain a primary key violation.

How synchronize entityManager' ID with database after adding an object manually ? (I have try Flush() but it don't work)

What is the best way to generate primary key if i use Oracle ?

1. Re: [EJB 3.0] EntityBean (table) shared between EntityManger

scraatz Jul 21, 2006 5:23 AM (in response to supradiz)

I think EJB3 can use Oracle Sequences to generate primary keys.
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