Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / john
An EJB is used to create business applications for any
e-commerce web sites.
But there are different EJBs
1) Statless Session Bean
2) Stateful Session Bean
3) Entity Bean
4) Message Bean
Depending on their functionality of each of the above
mentioned beans different requirements can be satisfied.
Therefore EJBs can be used for a wide variety of business
applications
example
Stateless Session Bean - used to check if a credit card is
valid or not when a credit card is swiped in the machine.
since there is just one trtansaction involved no need
maintain the state of the bean
Stateful Session Bean - used in online shopping websites
like ebay, amazon where the state of the client has to be
maintained. The user can do different operation during a
single logon but the items in the users shopping cart should
never be lost.
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
What are stateless applications?
What are the various types of entrepreneur java bean?
What is mdb in ejb?
What is ejb role in j2ee?
How ejb invocation happens?
Name the attributes of javax.ejb.ejb.
Explain what is an EJB Context?
How to find ejb version in websphere?
How many ejb objects are created for a bean?
What is ejb bean in java?
What is EJB object?
How does the server decide which beans to passivate and activate?
What is an entity and its types?
What is the procedure for the creation of stateless ejb?
Should services be stateless?
