can anyone explain me the workflow of EJB.I have developed an app. in WSAD using an example that contains CMP and session bean.But i am not able to understand the basic flow between diffrent packages.
1377explain why we say stateless beans does not maintain conversation state besides statefull maintains conversation state. give some examples...
HCL,
2 3462java doesnot support multiple inhetance. but a interface can support.how the ambiguities are rectified in interfaces?
3 4212java doesnot support multiple inhetance. but a interface can support.how the ambiguities are rectified in interfaces?
CGI,
2 4089In my project iam integrating telephone line using some
bridge. To connect my project to that telephone line they
have give some jar file. Using dat i connected with that..
To handle that event like call attented, call disposed and
idle time they have give one event listener class.. I did
every thing and this class is alsoo called when a
particular event is fired. The only thing is i wanna call
EJB from that event listener method.. But the EJB is not
getting initated and exception is thrown. This below shownn
error is occured only i try to call it from this event
listener class. In other places EJB calling is working
fine..
javax.naming.NoInitialContextException: Cannot instantiate
class: org.jnp.interfaces.NamingContextFactory [Root
exception is java.lang.ClassNotFoundException:
org/jnp/interfaces/NamingContextFactory]
at javax.naming.spi.NamingManager.getInitialContext
(NamingManager.java:657)
at javax.naming.InitialContext.getDefaultInitCtx
(InitialContext.java:247)
at javax.naming.InitialContext.init(InitialContext.java:223)
at javax.naming.InitialContext.
how can we decide a session bean as stateless or stateful without seeing jar file? i.e. by seeing the class file.
3 3544
What do you mean by bean managed transaction?
Can you be deported if you are stateless?
What is an ejb container?
Is it possible to share an httpsession between a jsp and ejb?
For ejb applications with bean-managed transaction demarcations, which of the following is used by the client to get a reference to the usertransaction object for the weblogic server domain?
What is applicationscoped?
What is ejb container?
Is is possible for an ejb client to marshal an object of class java.lang.class to an ejb?
Differentiate “find a method” from “select method” in EJB ?
What is the advantage of using entity bean for database operations, over directly using jdbc api to do database operations?
Which of the recommended practices to be performed in the ejbpassivate() method of a stateful session bean?
Enlist the contents of Container.
What is dependency injection in ejb?
Why should we use ejb?
What is stateless session?
