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