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Re: [eclipselink-users] Does it possible to sync a bean and a table?
In JPA?  No.  In EclipseLink?  Sort of.

People on this list are going to point you to the eclipselink.ddl-generation property (http://wiki.eclipse.org/Using_EclipseLink_JPA_Extensions_%28ELUG%29#Using_EclipseLink_JPA_Extensions_for_Schema_Generation).

But bear in mind this will not alter tables.  It will only create them and/or drop them.

You might look at http://www.liquibase.org/ for a database versioning/migration tool.  It is not what you are asking for, but for production support of databases you'll find that automatic initial DDL generation isn't all that great anyway.

Best,
Laird

On Fri, Sep 23, 2011 at 1:24 PM, Shai Amar <shai.amar@xxxxxxxxxxxxxx> wrote:
Hi

I want to know if there is a mechanism in JPA that does the following: 
  1. If I'm creating a bean it generate the table automatically
  2. If I'm changing one of the bean data members, the table columns changing respectively
And generally, is there a mechanism that enable a synchronization between the bean and the table? 

--
Regards

Shai Amar

Technologies manager, Founder
Krynnlance


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