How to call an EJB from an other without <ejb-ref> tags ?

fredj Dec 6, 2001 9:04 AM

Hello,

We've got the following problematic :

We want to load and call an EJB dynamically from an other without declaring ejb reference. We want to do this "a la" hot deploy.
We don't know the EJB/service name we will access at deployment time.

Let's assume that EJB "A" receives a message with the name of an EJB "B" at run-time. How to call services of "B" ?

We have done this for a a simple java client with JNDI+ simple reflection code
to obtain a homeInterface and call the business methods from the remote interface.

Now the problem is that when an EJB wants to obtain the
home interface of an other EJB we'll have to use the <ejb-ref> tag in ejb-jar.xml which is rather not dynamic.

How could we do our stuffs whitout having to declare all the external references at deployment time ?

Thank you,

Fred J.

1. Re: How to call an EJB from an other without <ejb-ref> tag

markd Dec 6, 2001 10:45 AM (in response to fredj)

Have you tried to use a fully qualified JNDI reference like "protocol://host:1234/name/in/other/server" ?

Look at External references in http://www.jboss.org/online-manual/HTML/ch06s13.html.
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2. Re: How to call an EJB from an other without <ejb-ref> tag

fredj Dec 6, 2001 11:07 AM (in response to fredj)

Even with external references you must specify
the home and remote interface class name in <ejb-ref> tag of ejb-xml.jar.
It's not what we want to do.

We want full "hot deploy", "dynamic" ejb calls from
an other ejb.
We do not know the full EJB class names of the EJB that will be accessed by our EJB "A". We only know their JNDI names at runtime.

FJ.
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