Dynamic ejb lookup

Question

Hello Community,
Question for u :)
I have a necessity to dynamically lookup for ejbs' and call methods on them. I am using EJB 1.0 on VAJ. I have the string values of the home, remote and the JNDI names. I need to read those values and lookup for the bean, and call methods. I have this.
String h = "MyEjbHome";
String r = "MyEjbRemote";
String jndi = "MyEjb";
I need to do something like this..
//parenthesis on LHS is just to explain the pbm
(MyEjbHome) home = jndicontextfactory.lookup(jndi, Class.forName(h));
(MyEjbRemote) remote = home.create();
remote.myMethod();
Now if u visualize the problem here, on the left hand side how can i dynamically give the type as (MyEjbHome) or (MyEjbRemote) when all I know is their names which are strings?
Please share ur knowledge. Thanks

Answer 1

Hi I tried this and it worked. But the thing is even though I tried PortableRemoteObject.narrow() I was still gettting ClassCastException. So I had to use reflection. Now the code looks something like this, and it works.
// child home
Object obj = newContext.lookup(childJNDI);
// get the create method
Method m = obj.getClass().getMethod("create", null);
// create the remote inteface for child
Object objRemote = m.invoke(obj, null);
// cast the child remote to the parent remote
ParentRemote re = (ParentRemote) PortableRemoteObject.narrow(objRemote, ParentRemote.class);
re.soSomething();
Thanks much for your help. I appreciate it.
look at this:
http://forums.java.sun.com/thread.jsp?forum=13&thread=2
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