[eclipselink-users] eclipselink - getting started

["J.V." <jvsrvcs@xxxxxxxxx>]

We are currently using the old method of using hibernate ( .xml files ) 
- no JPA.

I want to convert over to EclipseLink.  We have three schemas/DB's and 
about 300 tables.  What is the best way to generate entity classes for 
each table and:
    1.  have the relationships (many to many) autoconfigured?
    2.  have all the entity classes extend from a specific base class 
that I create where I want to have some default behaviour for each entity?

It would be grueling to create all the entity classes by hand and 
generating these from the DB would be most helpful.

Also we will be use the generate model with four databases on which our 
product is built (Oracle, PostgreSQL, SQL Server & MySQL), so the 
generated types must take into consideration the different database 
types and map correctly.

I would like to generate the classes from an installation of PostgreSQL 
and have it work with the four DB's that we support.

if this is at all possible, please point me in the right direction.

thanks


J.V.