What is enterprise bean?

Server side reusable java component Offers services that are hard to implement by the programmer
Sun: Enterprise Bean architecture is a component architecture for the deployment and development of componentbased distributed business applications.
Applications written using enterprise java beans are scalable, transactional and multiuser secure. These applications may be written once and then deployed on any server plattform that supports enterprise java beans specification.
Enterprise beans are executed by the J2EE server.
First version 1.0 contained session beans, entity beans were not included. Entity beans were added to version 1.1 which came out during year 1999. Current release is EJB version 1.2
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S Prithviraj

  • Jul 20th, 2006
 

In simple terms Enterprise beans are nothing but  Java programs (Objects written in Java)

They are specifically used to implement business logic - for example(In a Banking software): customers are allowed to draw a maximum of 5000 rupees per time from ATM AND they they have enough balance AND after drawing the money the account should have a minimum balance -

Enterprise beans are used to provide services on - Transactions, sessions, entity (data).

All enterprise beans are kept in a separate EJB containers

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