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Questions tagged [stateful-session-bean]

A stateful session bean is an enterprise bean (EJB component) that acts as a server-side extension of the client that uses it. The stateful session bean is created by a client and will work for only that client until the client connection is dropped or the bean is explicitly removed.

A stateful session bean is an enterprise bean (EJB component) that acts as a server-side extension of the client that uses it. The stateful session bean is created by a client and will work for only that client until the client connection is dropped or the bean is explicitly removed.

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InitialContext.lookup("path") throws javax.naming.NamingException

I am new to java and learning how to implement stateful ejb, I couldn't do that- (I wanted to maintain a list by adding and removing element in a arrayList) and unit testing is working fine, initializing the object throws the…
Veshraj Joshi
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How is state maintained within an application/web server?

I understand what stateful and stateless session beans are and when to use them but I am curious as to how an application/web server knows that this object instance belongs to this client. Is a session id sent in the form of a cookie and the…
Grim
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Real world use cases for stateful session EJB

Regarding the use of session EJBs, what I have seen until now in "real world applications" (if I remeber correctly) are stateless session EJB used as "facades" for transactional (via CMT) business logic methods. I have not seen any stateful session…
John Donn
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How to get one stateful session bean using another stateful session bean

I want to make one functionality i.e if user changes password from one device, he should get logout from all other devices where he was logged in. For this I will need to get all other session bean object atleast. is there any way to get all other…
nilesh
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EJB session bean does not initialize properly (NameNotFoundException)

I am having trouble figuring out why an EJB session bean is not working. The actual error message is an EJBException: NameNotFoundException, but that is not a very illuminating message. I have traced it down to a exactly what line causes the…
RRP
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Confused about the use of @Remote in an EAR

Using NetBeans, I have successfully run the shopping-cart example presented in the Java EE 6 tutorial on the Oracle website. It's an EAR with two modules: an EJB module and an application client module. I have cut short some details of the code in…
softwarelover
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When bean=null, does the app server trash the stateful bean instance and create new one?

I know this has been asked million times, but so far it didn't answer the question in my head, I think it's best to understand in code, could someone please verify my thinking: Stateless bean in client: public void work(){ bean.work1(); <---…
James Lin
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WildFly EJB UnknownSessionID

I just started learning ejb and now have problems. My ejb code is @Stateful @StatefulTimeout(value=80, unit=TimeUnit.SECONDS) public class HelloWorldBean { int i = 0; public int SayHello() { return i++; …
FoxNet
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Can I Reach Stateful Bean After Closing The Browser?

I need help about Stateless and Stateful Session Beans. I have got a few questions. Please clearly say to me what is the difference between Stateless and Stateful Session Bean? A few people say that Stateful beans keep info about client. What kind…
Ilkay Günel
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Spring Stateful Bean equivalent - synchronization callback methods

I want to migrate a Stateful Session Bean (EJB 2.1) to a Spring bean. Both the Stateful Bean and the Spring Bean shall run in Websphere Application Server using the Websphere Transaction Manager (the WebsphereUowTransactionManager interface allows…
Entomo
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Stateful session bean passivation and serialization - EJB

Following questions hits my mind 1) I read somewhere: Passivation: a stateful bean's chance at scalability What does scalability means here ? 2) How Stateless session bean more scalable then Stateful session bean ? 3) As For passivation a…
Junaid
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Mapping WebService-Client-Access to @Stateful

if I understand it right a @Stateful bean saves the state. If the client does a request again it comes back to the same instance. So it's possible to save class-attributes, what's not possible in @Stateless. In an other thread here someone wrote…
Gersee
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Getting @EJB in the context

as discussed here Display username in jsp redirected from a servlet to get the same instance of a Stateful Session Bean, i have to save it in the HttpSession related. It is working good, but in a servlet i did so: SessionCart cart = (SessionCart)…
Neo87
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@Stateful and @SessionScoped

I'm having a problem about the bean lifecycle I don't understand. I have a @SessionScoped bean in my war: @Named @SessionScoped public class UserBean implements Serializable { @Inject UserServicesLocal userServices; [...] } then a @Staseful…
moretti.fabio
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Working with stateful session beans (EJB)

I have recently learnt about stateful and stateless session beans in ejb. I can work along with stateless session beans without any problem (created several applications) but i am finding it hard to implement an application with a stateful session…
Chris
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