Hibernate ORM (Hibernate in short) is an object-relational mapping tool for the Java programming language.
It provides a framework for mapping an object-oriented domain model to a relational database. Hibernate
handles object-relational impedance mismatch problems by replacing direct, persistent database accesses
with high-level object handling functions.
What Hibernate Does
1.Map Java class to database tables & vice versa.
2.Data query and retrieval facility.
3.Generate the SQL query based on the underline DB. and attempts to relieve the developer from manual result
set handling and object conversion.
4.Make application portable to all relational DB.
5.Enhance performance by providing the different levels of cache(First, Second and Query level). from Java
classes to database tables, and mapping from Java data types to SQL data types. Hibernate also provides
data query and retrieval facilities.
6.It generates SQL calls and relieves the developer from the manual handling and object conversion of the result set.
