Hibernate

What is Hibernate ?

Hibernate is just a ORM(Object Relational Mapping) tool which is used for persisting data to database and retrieving data from database.
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What is difference between Hibernate & JPA?

JPA is a interface  which has no concrete implementation and Hibernate is implementation and just a JPA provider.  

JPA venders:

• Batoo JPA
• DataNucleus (formerly JPOX)
• EclipseLink (formerly Oracle TopLink)
• IBM, for WebSphere Application Server
• Hibernate
• ObjectDB
• OpenJPA

Hibernate Advantages:

• Hibernate takes care of mapping Java classes to database tables using XML files and without writing any line of code.
• Provides simple APIs for storing and retrieving Java objects directly to and from the database.
• Hibernate does not require an application server to operate.
• Manipulates Complex associations of objects of your database.
• Minimize database access with smart fetching strategies.
• Provides Simple querying of data.