Hi, I am migrating an application from Glassfish/EclipseLink to WebSphere/OpenJPA 2.2.2 and I have to following problem. Eclipselink and OpenJPA handle "empty" Embeddables (i.e. Embeddables with all fields null) differently. OpenJPA's default assumption is that an Embeddable is always "non-null", but EclipseLink does the opposite, meaning if all persistent members are null, the whole Embeddable is null.
The application heavily uses validation annotations on the members of the embeddables and @NotNull is one of them. Now think of an entity that contains an embeddable which may be null. There is no problem in persisting the entity. There is also no problem when you try to load that entity from the database. But when you modify some attribute of the entity and OpenJPA tries to update it in the database, then you get a javax.validation.ConstraintViolationException because OpenJPA validated the "empty" embeddable it created when it loaded the entity from the database and there is a @NotNull annotation on a member of the embeddable which is now null. I know this isn't a bug of OpenJPA since JPA does not specify what to expect when all members of an Embeddable are null. But my question is: Is there a way to configure OpenJPA (globally) to behave like eclipselink in the case of "empty" embeddables, without the need to use OpenJPA specific annotations in the code like "@EmbeddedMapping(nullIndicatorColumnName="xyz")? The java code has to be strictly JPA provider neutral, because the application (EAR) has to work on both platforms. Provider specific properties in persistence.xml or other configuration files, which don't interfere with EclipseLink would be okay. Thanks for your help, Tobias _______________________________________________________________________ [Email_CBE.gif]Tobias Meyer Custom Solution Development | Application Services Capgemini | Hamburg Phone: +4940254491291 - Mobile: +4915140250554 e-mail: tobias.me...@capgemini.com www.de.capgemini.com<http://www.de.capgemini.com/> Luebecker Strasse 128, D-22087 Hamburg, Germany People matter, results count. _______________________________________________________________________ ________________________________ Firma: Capgemini Deutschland GmbH Gesch?ftsf?hrer: Dr. Michael Schulte (Sprecher) * Dr. Uwe Dumslaff * Josef Ranner Aufsichtsratsvorsitzender: Antonio Schnieder Amtsgericht Berlin-Charlottenburg, HRB 98814 This message contains information that may be privileged or confidential and is the property of the Capgemini Group. It is intended only for the person to whom it is addressed. If you are not the intended recipient, you are not authorized to read, print, retain, copy, disseminate, distribute, or use this message or any part thereof. If you receive this message in error, please notify the sender immediately and delete all copies of this message.
