I DO NOT have to put <ejb-link> tags in my ejb-jar.xml for
one my ejb's to call another ejb. I am using the EJB 2.0
CMP stuff.
example:
<entity>
<ejb-name>Shipment</ejb-name>
...
...
<ejb-ref>
<description>Shipment-has-Contacts</description>
<ejb-ref-name>ejb/Contact</ejb-ref-name>
<ejb-ref-type>Entity</ejb-ref-name>
<home>com.tfc.entity.ejb.ContactHome</home>
<remote>com.tfc.entity.ejb.Contact</remote>
</ejb-ref>
</entity>
I can create Contact ejbs within my Shipment ejb now.
Inside a Shipment ejb method:
InitialContext ic = new InitialContext();
ContactHome ch =
(ContactHome)PortableRemoteObject.narrow(ic.loopup("java:comp/env/ejb/Contac
t"),
ContactHome.class);
Contact c = ch.create();
// or I could call a ContactHome finder method...
I'm not sure if I need to get a new initial context or
if I can use the EntityContext of the Shipment EJB somehow.
-tim
> -----Original Message-----
> From: Randahl Fink Isaksen [mailto:[EMAIL PROTECTED]]
> Sent: Friday, January 19, 2001 6:04 AM
> To: Orion-Interest
> Subject: RE: Getting the home interface of another EJB from within an
> EJB - PROBLEM SOLVED !!!
>
>
> Finally: PROBLEM SOLVED.
>
> The short hint from Luke Nelson turned out to be the ultimate
> proof of what
> theese mailing lists are really worth.
>
> Luke is right, guys. To be able to reference other EJBs from
> within EJBs you
> need to put a <ejb-link> tag in your ejb-jar.xml file. How
> this is done can
> be seen on page 417 of the EJB-2.0-spec - I have used it and
> it works (once
> you get the syntax right). So there is really no need to
> create special
> Orion-specific lookups like P. Pontbriand has been doing - I tried P.
> Pontbriands solution, but could not make it work, which was
> why I moved on
> to the <ejb-link>-solution.
> Still, to the best of my knowledge, it should only be
> necessary to add the
> <ejb-link> if your beans reside in different jars - so, the
> fact that Orion
> users need to add this tag even with beans residing in the
> same jar is an
> error (I assume).
>
> One happy developer - you made my day, Luke!
> Randahl Fink Isaksen
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Luke Nelson
> Sent: 18. januar 2001 21:46
> To: Orion-Interest
> Subject: RE: Getting the home interface of another EJB from within an
> EJB
>
>
> Have you tried putting an ejb-link reference in your
> ejb-jar.xml? Just an
> idea.
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Randahl Fink
> Isaksen
> Sent: Thursday, January 18, 2001 10:24 AM
> To: Orion-Interest
> Subject: RE: Getting the home interface of another EJB from within an
> EJB
>
>
> Thanks, Klaus - but the strange thing is, I have tried
> carrying out the
> exact same lookup from within my JSP and within my EJB - for instance:
>
> UserHome userHome = null;
> object = context.lookup("java:comp/env/ejb/UserHome");
> userHome = (UserHome) PortableRemoteObject.narrow(object,
> UserHome.class);
>
> It works in my JSPs but inside my EJBs it throws a
> NameNotFoundException.
>
>
> Any ideas???
>
> Randahl
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of
> [EMAIL PROTECTED]
> Sent: 18. januar 2001 11:49
> To: Orion-Interest
> Subject: SV: Getting the home interface of another EJB from within an
> EJB
>
>
> You work with EJBs inside another EJB the same way as you do
> inside a JSP
>
> Remember you have to use the JNDI name, not the home
> interface name, so a
> lookup("ejbSomeExample") will ofcourse return the home interface :)
>
> Hope this helps (ps remember ejb-refs to the objects you wish
> to use from
> the bean you are calling from or it will not work..
>
> Klaus
>
> -----Opprinnelig melding-----
> Fra: Randahl Fink Isaksen [mailto:[EMAIL PROTECTED]]
> Sendt: 18. januar 2001 11:00
> Til: Orion-Interest
> Emne: Getting the home interface of another EJB from within an EJB
>
>
> >From inside an entity bean you can get hold of your Home interface by
> calling
>
> myBeansEntityContext.getEJBHome()
>
> but how do I get hold of the home interface of _another_ bean?
>
> I assume this requires some kind of lookup. In JSP files one
> would simply
> use "new InitialContext()" and perform a lookup on this
> context, but if I do
> so within an EJB, I am not able to find any home interfaces
> at all - I get a
> NameNotFoundException.
>
> Now, is it really necessary to go all the way and get an
> InitialContext by
> setting up environment properties and creating an
> InitialContext from these
> plus adding an "application-client.xml" to the
> deployment....?? - After all
> I am still inside an EJB...
>
>
> Any hints would be appreciated.
>
> Randahl
>
>
>
>
>
>
>
>
