Why to use Hibernate or Castor? What are their benefits?

[Damanjit Kaur]

Hi,

Can anyone tell me What are the benefits of using Castor or Hibernate. I have never used them and just know that they provide JDO implementation for any database say Postgres or Hypersonic and we need to provide an xml file for database mapping into Castor and don't know much about Hibernate.

I am not clear about Why we need to have Hibernate or Castor in between client application and Database.

Thanks in advance

[Erik Bengtson]

neither Hibernate or Castor are jdo compliant.

For jdo compliant implementations see http://www.jdocentral.com/JDO_Links_Body.html