I am new in JPA and I can’t understand the use and the difference between stateless and stateful.
Any experiences?
regards,
Haythem
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“Stateful” and “Stateless” are attributes for session beans.
A session bean (in brief) provides a way to call methods on an application server. The bean is an instance of a java class. Usually, a bean is destroyed after the remote method terminates (and returns a result). Those bean are “stateless”.
It is possible (but rather unusual) to add fields and attributes to the bean so that a client can “create” this instance on the server and use it for more then one operation. Those beans are “stateful” (and should be avoided).