[ excerpt from developer's www site with modifications ]
Hibernate Tools is an entirely new toolset for Hibernate3 implemented
as an integrated suite of Eclipse plugins, together with a unified
Ant task for integration into the build cycle. The following features
+ Mapping Editor: An editor for Hibernate XML mapping files
+ Console: Allows you to configure database connections, provides
visualization of classes and their relationships and allows you
to execute HQL queries interactively against your database and
browse the query results.
+ Reverse Engineering: Database reverse engineering tool that can
generate domain model classes and Hibernate mapping files, annotated
EJB3 entity beans, HTML documentation or even an entire JBoss
Seam application in seconds!
+ Ant task