Java Hibernate Tutorial
Hibernate is an ORM tool. Hibernate is a
solution for object-relational mapping and a persistence management
layer. For example a java application is used to save data of an
object to a database. Hibernate provides a solution for this
persistence by mapping database tables to a class. The database data
is copied to the object. The copying the data as objects and vice
versa is known as object-relational mapping. A query that uses
select statement and its operations of fetching tuples is done by a
simple query object. And being an object, the same object can be
utilized several times, which reduces the ‘query defining time’.
Usage of simple java classes [ Plain Old Java Objects ] makes this
task simple instead of using entity beans / JDBC calls.
- Hibernate is a powerful, high performance object/relational
persistence and query service.
- Hibernate allows development of persistent classes following
object-oriented idiom that includes association, inheritance,
polymorphism, composition, and collections.
- Hibernate allows expressing queries in its own portable SQL
extension (HQL), as well as in native SQL, or with an
object-oriented Criteria and Example API.
setup
install hibernate
customise
Our First Class!
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