Just to let you know, I am almost done adding this. I will probably be able
to finish the impl sometime tomorrow, but it might take a little longer than
that to get it checked in. I want to be sure that the test suite is updated
to actually test that all of my changes work correctly (and I am not really
sure how to do that just yet).
Any ways, you can expect this to be available in CVS sometime mid next week
(if not earlier).
--jason
On Thu, 26 Apr 2001, Alf Werder wrote:
> Jason Dillon wrote:
>
> > I spent some time (long ago...) fixing this very problem, but I have not
> > really had time to integrate it into the latest codeline. I can put some
> > more effort into fixing this soon.
>
> I really would appreciate that.
>
> > Does anyone happen to know what the EJB spec says about handles and if they
> > should return bean refs to the *exact* server which they came from? I can
> > not recall any real detail about handles except that they are used to allow
> > clients to restore a reference to a given bean.
>
> I don't think so. In a clustering environment, that cannot be guaranteed anyway. The
>spec (1.1) talks about handles in section 8.7 and 8.8.
>
>
> > Any ways, I do not think that this will take that long to fix. I can
> > probably make this optional too (via a property that will enable the new
> > behavior). The only problem that I remember running into was when the proxy
> > is generated there isn't an easy way to find out what the provider url is for
> > the current machine (in a non-jboss specific fashion). Perhaps that has
> > changed.
> >
> > What I might do is force users who are interested in this, to provide some
> > extra properties (or another jndi properties file) that specifies the exact
> > environment properties required to restore a bean from a handle.
>
> I think, that is the best way, because you cannot determine the host name of a
>server.
>
> -alf
>
> > --jason
> >
> >
> > On Thu, 26 Apr 2001, Alf Werder wrote:
> >
> >
> >> Hi,
> >>
> >> The last two months I made my first experiences with jboss as a bean
> >> developer. I am really surprised and impressed by the work, that is
> >> done. But now, the first serious problem arised.
> >>
> >> In an EJB client a tried to obtain the home interface of a bean from its
> >> remote interface. But a call to EJBObject.getEJBHome() throws an
> >> exception. That was the first sign. Later, I tried to use a HomeHandle
> >> to reobtain a home interface after a server restart.
> >> HomeHandel.getEJBHome() throws an exception.
> >>
> >> I had a deeper look and found the problem: My code was
> >>
> >> Hashtable env = new Hashtable();
> >> env.put("java.naming.factory.initial",
> >> "org.jnp.interfaces.NamingContextFactory");
> >> env.put("java.naming.provider.url", "localhost:1099");
> >> env.put("java.naming.factory.url.pkgs", "org.jboss.naming");
> >>
> >> MyHome home = (MyHome) new InitialContext(env).lookup("MyHome");
> >> MyHome h = (MyHome) home.getHomeHandle().getEJBHome();
> >>
> >> The last line throws the exception. It works, when I change the code to:
> >>
> >> Hashtable env = new Hashtable();
> >> System.setProperty("java.naming.factory.initial",
> >> "org.jnp.interfaces.NamingContextFactory");
> >> System.setProperty("java.naming.provider.url", "localhost:1099");
> >> System.setProperty("java.naming.factory.url.pkgs", "org.jboss.naming");
> >>
> >> MyHome home = (MyHome) new InitialContext().lookup("MyHome");
> >> MyHome h = (MyHome) home.getHomeHandle().getEJBHome();
> >>
> >> So had a look into the jboss source code. The HomeHandle implementation
> >> simply does not know the server, is came from. It just creates a new
> >> inital context without any Arguments. So it gets the local root context,
> >> which is not the context its home interface is bound to.
> >>
> >> -alf
> >>
> >>
> >
> >
> >
> > _______________________________________________
> > Jboss-development mailing list
> > [EMAIL PROTECTED]
> > http://lists.sourceforge.net/lists/listinfo/jboss-development
>
>
>
>
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