Does JPA have any configuration to create DDL's that are database specific

There some JPA classes who's names more that 30 character. This worked well in MySQL , Derby , PostgreSQL but when it was tried on oracle , we hit the constraint that oracle has of 30 characters.

So basically my question is that is there any JPA have any configuration to create DDL's that are database specific.

Maybe what you are looking for is the Table annotation.
But this is relevant only for ORM (Object Relational Mapping) JPA and ignored by ObjectDB.