|
| Home | Tech FAQ | Interview Questions | Placement Papers | Tech Articles | Learn | Freelance Projects | Online Testing | Geeks Talk | Job Postings | Knowledge Base | Site Search | Add/Ask Question |
 Related Questions 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 Latest Answer : 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. ... Answer posted by Mohan on 2005-05-20 08:45:36: Stateful session beans have the passivated and Active state which the Stateless bean does not have. Latest Answer : Stateful session beans follow the instance passivation techniqueStateless session beans follow the instance pooling technique.ejbActivate() and ejbPassivate() methods are not called in Stateless session beansI ... Latest Answer : 1. doesnot exsist 2. exsists 3. passivate invoke ejbcreate() set the sessioncontext() call create() if the session idle call ejbPassivate() to get back to session call ejbActivate() to end the ... Latest Answer : 1. dose not exsist 2. exsist to start the session set the sessionContext() call create() to end session call remove ... Answered by Jey on 2005-05-08 19:41:22: Session bean callback methods differ whether it is Stateless or stateful Session bean. Here they are. Stateless Session Bean 1. setSessionContext() 2. Latest Answer : Session callback methods setSessionContext();unsetSessionContext();ejbLoad();ejbActivate();ejbPassivate();ejbRemove();Entity bean call back methodspublic void setEntityContext(javax.ejb.EntityContext c); public void unsetEntityContext();public void ejbLoad(); ... Latest Answer : I'll take a best exmaple to explain.Statefull sessionbean : ATM operationStateless Session Bean : Credit card Once we log into the ATM by entering PIN number. We can do multiple transacations like Balance enquiry, Withdrawl, ministatement..etc... ... Answered by Jey on 2005-05-08 12:30:37: Message Driven Bean (MDB) is an enterprise bean which runs inside the EJB container and it acts as Listener for the JMS asynchronous message . It does not have Home Latest Answer : Message Driven Bean (MDB) is an enterprise bean which runs inside the EJB container and it acts as Listener for the JMS asynchronous message . It does not have Home and Remote interface as Session or Entity bean. It is called by container when container ... Answered by Jey on 2005-05-08 11:55:29: Activation and Passivation is appilicable for only Stateful session bean and Entity bean. When Bean instance is not used for a while by client then EJB Latest Answer : Activation and Passivation is appilicable for only Stateful session bean and Entity bean. When Bean instance is not used for a while by client then EJB Container removes it from memory and puts it in secondary storage (often disk) so that ... Latest Answer : Session Bean comes with the implicit services where as HHTPSession does not. Session Bean can be web based or can be stand alone where the other can only be web based. Session Bean can be used for multiple operation for a single ... Latest Answer : In Stateful session bean session is not itself a separate entity. it is contained in the bean it self. So in order to check tht we need the check whether the Stateful session bean is present or not which is done by just invoking the home interface with ...
Sponsored Links
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
3 
0