[jboss-user] [EJB 3.0] - [Beginner] Remote Client Dependency Injection doesn't work..
Hi all !
I have found an EJB 3 example from Oracle site, it uses dependency injection to invoke the
EJB. Unfortunately it doesn't work on JBoss....I get a
"NullPointerException" when I invoke the sayHello method.
Added also Context information but still doesn't work.
Do I need to add some configuration file to the EJB's jar file so that dependency
injection works ???
This is the EJB
package oracle.ejb30;
|
| import javax.ejb.Remote;
| @Remote
| public interface HelloWorld {
| public void sayHello(String name);
| }
|
| -----------------------------------------------------
| package oracle.ejb30;
|
| import javax.ejb.Stateless;
|
| @Stateless
| public class HelloWorldBean implements HelloWorld {
| public void sayHello(String name) {
| System.out.println("Hello " + name
| + " from your first EJB 3.0 component ...");
| }
| }
| -------------------------------------------------------
| package oracle.ejb30;
|
| import javax.ejb.EJB;
| import java.util.*;
| import javax.naming.*;
|
| public class HelloWorldClient {
| @EJB
| private static HelloWorld helloWorld;
|
| public static void main(String[] args) throws NamingException {
| Properties env = new Properties();
| env.setProperty("java.naming.factory.initial",
"org.jnp.interfaces.NamingContextFactory");
| env.setProperty("java.naming.provider.url",
"localhost:1099");
| env.setProperty("java.naming.factory.url.pkgs",
"org.jboss.naming");
| Context ctx = new InitialContext(env);
|
| System.out.println("Using Dependency Injection .. invoking sayHello
");
| helloWorld.sayHello("Debu Panda!");
| }
| }
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