Problem in Proxy call from an application deployed in J2EE engine

Question

Hi,
I am trying Java Sender Proxy --> XI --> DB.
I have generated o/b proxies using integration builder.
<b>Following is the code that i am using for proxy call and it runs absolutely fine when runnning stand alone</b>
<code Controller.java>
Properties p = new Properties();
p.put(Context.INITIAL_CONTEXT_FACTORY,"com.sap.engine.services.jndi.InitialContextFactoryImpl");
p.put(Context.PROVIDER_URL, "server:50004");
p.put(Context.SECURITY_PRINCIPAL, "Administrator");
p.put(Context.SECURITY_CREDENTIALS, "password");
ctx = new InitialContext(p);
ref = ctx.lookup("sap.com/ProxySenderEAR/UsersSyncMI_PortTypeBean");
queryOutHome = (UsersSyncMI_PortTypeHome) PortableRemoteObject.narrow(ref, UsersSyncMI_PortTypeHome.class);
queryOutRemote = queryOutHome.create();
UserDT_Type reqtype =     new UserDT_Type();
reqtype.setUsername(name);
reqtype.setPassword(pwd);
UsersDBMTResponse_Type response = queryOutRemote.usersSyncMI(reqtype);
role = response.getRole();
</code>
I am including this java file(Controller.java) in the same EJB project ProxyEJB which includes
my beans and home/local/remote interfaces.
Then I have created a Web Module Project ProxyWeb, that includes Proxy.jsp.
In proxy.jsp i am using the following code
<%
Controller obj = new Controller();
String name = request.getParameter("uname");
String password = request.getParameter("pwd");
String role = obj.getRole(name,password);
%>
Then I have included both ProxyWeb and ProxyEJB in ProxyEAR file, created Enterprise Archive and Deployed in J2EE engine.
and when I call the jsp...i am not getting expected result.
When i am debugging the code using try catch blocks for the controller.java...I observed that
Problem occured at :
<code>
queryOutHome = (UsersSyncMI_PortTypeHome) PortableRemoteObject.narrow(ref, UsersSyncMI_PortTypeHome.class);
queryOutRemote = queryOutHome.create();
</code>
what i am not able to uderstand is that ...when it is working fine when calling from standalone ...then
why it's giving me problems when deployed in j2ee engine...
note: I am using all required jars for XI.(included in ProxyEJB).And I have used NetWeaver Developer Studio for the above EAR,WAR projects.
Kindly suggest,
Regards
Vedavyas

Answer 1

The JNDI call is different when you call an EJB from inside the J2EE.
ctx = new InitialContext();
ref = ctx.lookup("java:comp/env/<JNDI-Name>");
Regards
Stefan