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Need for ejb-link
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seema mani
Ranch Hand
Joined: Sep 30, 2001
Posts: 49
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hi
If I need to refer an enterprise bean from another, I can use the ejb-ref element. Within this element I specify the home and remote interfaces of the target bean. Now I can do a JNDI lookup of the target bean uing the ejb-ref-name.
Now my doubt is what is the benefit of the optional ejb-link element ? What additional purpose does it serve ?
Thanks
Seema
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Sun Certified Java Programmer<br />Sun Certified Web Component Developer<br />Sun Certified Business Component Developer
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Kathy Sierra
Cowgirl and Author
Ranch Hand
Joined: Oct 10, 2002
Posts: 1572
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Howdy, or application assembly, ejb-link can be used when you are referring to another bean within the same .ear file. But it's optional... so why use it?
A couple of reasons;
* It allows the container to (potentially) do some optimizations.
* More importantly, it allows you to have two or more beans with the same <ejb-name> in the same .ear file, and distinguish between them (see page 420 in the spec, for an example).
cheers,
Kathy 
Java technology is everywhere...If you develop software and haven't learned
Java, it's definitely time to dive in -- Head First.
-Scott McNealy, Sun Microsystems Chairman, President and CEO
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subject: Need for ejb-link
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