I am looking for experienced Java Programmers and Developers for both
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If you are interested, or know someone who is, please send your resume to:
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standards. I look forward to working with you. Leslie
----- Original Message -----
From: Sosnowski, Andrew P [IT] <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, December 19, 2000 10:40 AM
Subject: FW: Retrofitting EJB to existing App OR gluing two EJB servers to
gether; Architectural question
> > We are trying to integrate a third part package (written using EJBs on
> > Sybase's EA Server) with an existing app that uses BEA Weblogic 4.5.
> >
> > From the existing app we need to invoke an EJB in the third party
software
> > app. However to do this we need to add the EA Server implementation of
> > CORBA, JNDI, and EJB to the CLASSPATH for the weblogic app.
> > This means we have 2 versions of CORBA, JNDI, and EJB and especially
> > javax/ejb classes that are incompatible.
> > When we try invoke the EJB on the EA Server, we have already loaded the
> > EJBHome interface from the weblogic server's implementation of
javax/ejb.
> >
> > This means that when we try cast the object returned from the JNDI
lookup,
> > the cast fails, i.e.:
> >
> > home = (com.sybase. ... FIX40SendHome) ctx.lookup(beanHomeName);
> >
> > throws a ClassCastException.
> >
> > The bean returned from the lookup is the correct one.
> >
> > This way of invoking a bean in another EJB server seems architecturally
> > flawed. What would be a more flexible way of doing this? Isn't this the
> > same problem that CORBA struggled with until the invention of iiop? How
is
> > this solved with EJBs?
> >
> > Thanks in advance for your help,
> >
> > Andy Sosnowski
> >
>
>
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