What is Session Bean. What are the various types of Session Bean
Answer posted by Mohan on 2005-05-20 08:44:39: SessionBeans typically are used to represent a client they are of two typse
Stateful Session Beans : they maintain conversational state between subsequest calls by a client
Stateless Session Bean : consider this as a servlet equivalent in EJB. It is just used to service clients regardless of state and does not maintain any state.
RE: What is Session Bean. What are the various types of Session Bean
SessionBeans: They are usually associated with one client. Each session bean is created and destroyed by the particular EJB client that is associated with it. These beans do not survive after system shutdown.
These Session Beans are of two types:
a) Stateless Session Beans : These beans do not have internal States. They need not be passivated. They can be pooled into service multiple clients.
b) Stateful Session Beans : These beans have internal states. They can be stored (getHandle()) and restored (getEJBObject()) across client sessions.Since they can be persistence, they are also called as Persistence Session Beans.
RE: What is Session Bean. What are the various types of Session Bean
SessionBeans typically are used to represent a client they are of two typse
Stateful Session Beans : they maintain conversational state between subsequest calls by a client
Stateless Session Bean : consider this as a servlet equivalent in EJB. It is just used to service clients regardless of state and does not maintain any state.
RE: What is Session Bean. What are the various types of Session Bean
session bean has conversational state of an user. it is maintained by the container untill user does not close browser. one more importent thing to consider that if an user open more than one browser , still there is only one session so he/she can't access from more than one browser. stateless session bean are used in JMS (java messaging services). because there is no nedd to maintain session.
RE: What is Session Bean. What are the various types o...
Ok,If you want to find the inverse of a Matrix then We can use session been encapsulated the logic of finding inverse of a matrix, is an example for stateless session been. Here there is no subsequent request and no need to persist the data. The logic of finding the inverse is encapsulated in the been.
A good example for stateful session been is a shopping CART. We have to maintain a session with the custermor cos` customer spends few times to chose items and we need to keep a coonection with the customer.
RE: What is Session Bean. What are the various types o...
Session bean is encapsulates the business logic. and carry out the task for behalf of the client. It have two types.one is stateful session bean. this is maintain the convesional state.another one is stateless session bean. donot maintain the conversional.state.
