Explain the concept of local interfaces?
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How does a container, manage access, from multiple transactions on an entity bean?
Can EJB made to handle multiple transactions?
Explain what is an EJB Context?
What is ejb home object?
Enlist the CallBack methods of Session Bean?
How to determine, that beans are TX or not?
Can beans who are involved in transaction have 'passivation' process?
What is the new basic requirement for a cmp entity bean class in 2.0 from that of ejb 1.1?
What is session facade in ejb?
List down the steps for the demonstration of ejp persistence mechanism.
In 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.<init> (InitialContext.java:197) at com.kgisl.etrac.desk.servicelocator.ServiceLocator.getInitia lContext(ServiceLocator.java:82) at com.kgisl.etrac.commonUtils.EventListener.getAdministrationE JBRemote(EventListener.java:206) at com.kgisl.etrac.commonUtils.EventListener.CallDispositioned (EventListener.java:65) Caused by: java.lang.ClassNotFoundException: org/jnp/interfaces/NamingContextFactory at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:242) at com.sun.naming.internal.VersionHelper12.loadClass (VersionHelper12.java:42) at javax.naming.spi.NamingManager.getInitialContext (NamingManager.java:654) ... 6 more 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.<init> (InitialContext.java:197) at com.kgisl.etrac.desk.servicelocator.ServiceLocator.getInitia lContext(ServiceLocator.java:82) at com.kgisl.etrac.commonUtils.EventListener.getAdministrationE JBRemote(EventListener.java:206) at com.kgisl.etrac.commonUtils.EventListener.CallDispositioned (EventListener.java:65) Caused by: java.lang.ClassNotFoundException: org/jnp/interfaces/NamingContextFactory at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:242) at com.sun.naming.internal.VersionHelper12.loadClass (VersionHelper12.java:42) at javax.naming.spi.NamingManager.getInitialContext (NamingManager.java:654) ... 6 more It would be more help full if i get the solution 10x in advance balaji
What is an ejb container?