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Enterprise Java Beans - EJB MCQs

A heavy tool manufacturing company manages its business and production by using enterprise beans. A session bean named 'Status' is used to get the production status for the day. The following code gets the context:

Context initialContext = new InitialContext();

The bean provides a local client view. For the local home interface named 'StatusHome.' What should be the lookup?

StatusHome statusHome = (StatusHome) initialContext.lookup("java:tools/env/ejb/status");

StatusHome statusHome = Context.lookup("java:tools/env/ejb/status");

StatusHome statusHome = javax.rmi.PortableRemoteObject.narrow( Context.lookup("java:tools/env/ejb/status"),StatusHome.class);

StatusHome statusHome = (StatusHome) javax.rmi.PortableRemoteObject.narrow( initialContext.lookup("java:tools/env/ejb/status"),StatusHome.class);

Answer

Correct Answer: StatusHome statusHome = (StatusHome) javax.rmi.PortableRemoteObject.narrow( initialContext.lookup("java:tools/env/ejb/status"),StatusHome.class); 

Explanation:

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