Answer Posted / kunwar dharmendra singh

Stateful vs. Stateless Session Beans
A stateful session bean will maintain a conversational state
with a client. The state of the session is maintained for
the duration of the conversation between the client and the
stateful session bean. When the client removes the stateful
session bean, its session ends and the state is destroyed.
The transient nature of the state of the stateful session
bean should not be problematic for either the client or the
bean, because once the conversation between the client and
the stateful session bean ends, neither the client nor the
stateful session bean should have any use for the state.

A stateless session bean will not maintain conversational
states for specific clients longer than the period of an
individual method invocation. Instance variables used by a
method of a stateless bean may have a state, but only for
the duration of the method invocation. After a method has
finished running either successfully or unsuccessfully, the
states of all its instance variables are dropped. The
transient nature of this state gives the stateless session
bean beneficial attributes, such as the following:

Enlist the CallBack methods of Session Bean?

1006

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What were entity beans?

961

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Elucidate callback in ejb?

961

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What is the default transaction attribute for an ejb?

946

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Enlist the declarative transaction types?

983

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How to import ejb project in eclipse?

1017

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In what format is the conversational data written to the disk?

948

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What are stateless applications?

1033

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What is the use of @ejb annotation?

943

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What happens when I change a value in the httpsession from inside an ejb?

931

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What do you mean by ejbdoclet?

1024

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What is the meaning of acid in the connection of transaction management?

999

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What is a ejb container?

924

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What is jar, war, and ear?

1075

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What are the various types of entity beam?

979

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