How does the JNDI locate the home interface of an enterprise bean?

How does the JNDI locate the home interface of an enterprise bean?

Rating:

To locate the home interface of an enterprise bean, the JNDI requires the following steps:

1. Create the JNDI naming context using the InitialContext class as follows:
   
   Context ctx = new InitialContext()



2. Use the InitialContext reference to look up for the JNDI name as follows:
   
   Object obj = ctx.lookup("JNDIName")
   
   Here, JNDIName is the JNDI name that is specified at the time of deployment of the enterprise bean.


3. Narrow the Object to the bean's home interface type using the PortableRemoteObject.narrow method. This method takes two parameters, namely the object returned by the lookup() method and the home interface's class file name, as follows:
   
   HomeInterfaceType h = (HomeInterfaceType)PortableRemoteObject.narrow(obj, HomeInterfaceType.class)

Rating: