Answer Posted / raviraja n
Hibernate is an open source tool for an object/relational
mapping tool for Java.
Hibernate lets you develop persistent classes following
common Java idiom - including association, inheritance,
polymorphism, composition and the Java collections
framework.
Hibernate not only takes care of the mapping from Java
classes to database tables (and from Java data types to SQL
data types), but also provides data query and retrieval
facilities and can significantly reduce development time
otherwise spent with manual data handling in SQL and JDBC. .
Hibernates goal is to relieve the developer from 95 percent
of common data persistence related programming tasks.
Hibernate is Free Software. The LGPL license is
sufficiently flexible to allow the use of Hibernate in both
open source and commercial projects (see the LicenseFAQ for
details). Hibernate is available for download at
http://www.hibernate.org/. This tutorial aims to provide
insight into Hibernate version 3.0RC and its usage
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