EJB Stateful Session bean: What is a Stateful Session bean?

What is a Stateful Session Bean?

- Between the client and the session bean, the state of the conversation can be maintained using a stateful session bean.

- The instance variables contain a state only during the invocation by a client method.

- It implements ‘javax.ejb.SessionBean’ interface and is deployed with the declarative attribute ‘stateful’.

- They have instance fields that can be initialized and modified by the client with each method invocation.

- The bean can use the conversational states as its business process methods.
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