Creating the HelloWorld EJB

Context

In the HelloWorldEJB project, you create a session EJB, which provides the business logic of the Web service.

Procedure

In the Project Explorer , choose the HelloWorldEJB project, and then choose File New Other .
In the list of wizards, choose EJB Session Bean , and then choose Next .
In the Java package field, enter com.sap.tutorial.helloworld .
In the Class name field, enter HelloBean .

Make sure that the EJB project field contains the HelloWorldEJB project.
In the Create Business Interface area, select both Remote and Local , and then choose Finish .

The system opens the created EJB session bean for editing.

Update the source code as shown in the sample below. The code shows the implementation of a Java class that returns a string: Hello, <name> .

The value of <name> is provided by user input.


package com.sap.tutorial.helloworld;
import javax.ejb.Stateless;
 
@Stateless(name="HelloBean")
public class HelloBean 
implements HelloBeanRemote, HelloBeanLocal {
   
private String message = "Hello, ";
   
public String sayHello(String name) {
   
return message + name + ".";
   }
}

In the Project Explorer , expand the HelloWorldEJB project, and then choose ejbModule com.sap.tutorial.helloworld HelloBean.java HelloBean sayHello(String) .
Right-click sayHello(String) , and then choose EJB Methods Add to Local and Remote Interfaces .
Save your changes.

Results

The HelloBean.java class appears in the HelloWorldEJB project. The sayHello class is added to the local and remote Java interfaces.

Next Steps

Next step : Exposing the EJB as a Web Service