1. What is ORM?
- ORM is a new kind of persistency software..
- Which act as bridge between java application and database to transfer the data.
- ORM tool internally uses JDBC, JNDI, JTA.
- ORM uses JDBC technology for perform database operations by creating a connection.
- ORM uses JNDI to obtain database connection from connection pool.
- ORM uses JTA for managing database transactions.
2. What are the ORM tools?
- So many ORM tools are available in market.
- Hibernate - JBOSS
- iBatis - Apache
- Toplink - Oracle
- OJB - Object Java Bean - Apache
- JDO - Java Data Object - Adobe
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