In this section we will see Hibernate features.
Hibernate is an Open Source persistence technology. Hibernate provide a way of mapping of applications class to the database
Main Features : It is ORM based and provide persistence
management solution or persistent layer. It maps database
tables to a class.
Here we are giving some features in points -
- Hibernate provides Object/Relational mappings. Here is different O/R mapping
strategies as multiple-objects to single-row mapping,
Polymorphic associations, bi-directional association, association filtering. It
also provide XML mapping documents.
- It provides different object oriented query languages. Minimal object oriented
Hibernate query language(HQL), native SQL queries,
High object oriented concept of criteria.
- It provide transparent persistence without byte code processing.
- It introduces automatic Dirty Checking concept.
- It supports Detached object concept.
- It supports tough concept of composite keys.
- Automatic generation of primary key.
- Hibernate provides Dual-layer Cache Architecture.
- It provides session level cache and optional second-level cache.
- It introduces Lazy initialization.
- Hibernate provide outer join fetching.
- It supports optimistic locking with versioning.
- Optionally provide internal connection pooling and prepared statement
- At system initialization time it generate SQL.
- It provide feature of J2EE integration.
- It supports JMX and JCA.
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