This question appears in Mumbai University > Distributed System Subject

Marks: 5 M

Year: May 2015

1. Stateful session beams:

• These beams posses internal states of instance variables which represent the state of unique client beam session.

• As their state can be saved and restored between sessions, they are also called persistent session beams.

Entity beams:

• They are persistent java objects whose state can be saved into the database and restored for later usage

• It represents a record in database.

• Even when program units, the entity beam will continue to exit.

• So when program is restarted it can reuse states of beam object.

2. Stateful session beams

3. Entity beams