Entity Bean

From Wikipedia, the free encyclopedia

An Entity Bean is a type of Enterprise JavaBean, a server-side Java EE component, that represents persistent data maintained in a database. An entity bean can manage its own persistence (Bean managed persistence) or can delegate this function to its EJB Container (Container managed persistence). An entity bean is identified by a primary key. If the container in which an entity bean is hosted crashes, the entity bean, its primary key, and any remote references survive the crash.

In EJB 3.0, entity beans were superseded by the Java Persistence API.

[edit] External links

• What is an Entity Bean ? (Sun's J2EE Tutorial)
• Entreprise Beans lifecycle
• Life Cycle State Diagram of Entity Beans