//Hello.java
package examples;
public interface Hello extends javax.ejb.EJBObject
{
public
String hello() throws java.rmi.RemoteException;
}
//HelloLocal.java
package examples;
public interface HelloLocal extends javax.ejb.EJBLocalObject
{
public String hello();
}
//HelloHome.java
package examples;
public interface HelloHome extends javax.ejb.EJBHome
{
Hello create() throws java.rmi.RemoteException, javax.ejb.CreateException;
}
//HelloLocalHome.java
package examples;
public interface HelloLocalHome extends javax.ejb.EJBLocalHome
{
HelloLocal create() throws javax.ejb.CreateException;
}
//HelloBean.java
package examples;
public class HelloBean implements javax.ejb.SessionBean {
private SessionContext ctx;
//
// EJB-required methods
//
public void ejbCreate() {
System.out.println("ejbCreate()");
}
public void ejbRemove() {
System.out.println("ejbRemove()");
}
public void ejbActivate() {
System.out.println("ejbActivate()");
}
public void ejbPassivate() {
System.out.println("ejbPassivate()");
}
public void setSessionContext(javax.ejb.SessionContext ctx) {
this.ctx = ctx;
}
//
// Business methods
//
public String hello() {
System.out.println("hello()");
return "Hello, World!";
}
}
//ejb-jar.xml
<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise
JavaBeans 2.0//EN" "
http://java.sun.com/dtd/ejb-jar_2_0.dtd"> <ejb-jar>
<enterprise-beans>
<session>
<ejb-name>Hello</ejb-name>
<home>examples.HelloHome</home>
<remote>examples.Hello</remote>
<local-home>examples.HelloLocalHome</local-home>
<local>examples.HelloLocal</local>
<ejb-class>examples.HelloBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>
</session>
</enterprise-beans>
</ejb-jar>
package examples;
import javax.naming.Context;
import javax.naming.InitialContext;
import java.util.Properties;
public class HelloClient {
public static void main(String[] args) throws Exception {
Properties props = System.getProperties();
Context ctx = new InitialContext(props);
Object obj = ctx.lookup("HelloHome");
HelloHome home = (HelloHome) javax.rmi.PortableRemoteObject.narrow(obj, HelloHome.class);
Hello hello = home.create();
System.out.println(hello.hello());
hello.remove();
}
}
