Thursday, September 6, 2007

Look Up a Bean Interface in EJB 3.0

In principle, in EJB 3.0, you can access a bean from another bean by looking it up in the interface (local or remote). Here are two solutions for doing that:

1. Through the JNDI, you still have the portability:

//get the default JNDI initial context
Context ctx=new InitialContext();
//get the bussiness interface
Object obj=ctx.lookup(BusinessInterface.class.getName());
//convert obj
BusinessInterface bi=(BusinessInterface)obj;

2. Through the @EJB annotiation:

@EJB BusinessInterface bi; //cooool !

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