Network Deployment (Distributed operating systems), v8.0 > Develop and deploying applications > Develop EJB applications > Develop session beans

Develop a session bean to have a No-Interface Local View

A session bean has a No-Interface Local view when:

• The bean does not expose any other client views (Local, Remote, 2.x Remote Home, 2.x Local Home, Web Service) and its implements clause is empty.
• The bean exposes at least one other client view. The bean designates that it exposes a no-interface view with the @LocalBean annotation on the bean class or in the deployment descriptor.

A couple of code snippets to demonstrate the points previously mentioned:

session bean with No-Interface view because no declared interfaces
@Stateless
public class CartBean

session bean with No-Interface view by using the @LocalBean annotation
@Stateless
@LocalBean
@Remote( Cart.class )
public class CartBean implements Cart

You can also declare metadata for a session bean with No-Interface Local view in the deployment descriptor rather than using annotations:

<?xml version="1.0"?>
<ejb-jar
  xmlns="http://java.sun.com/xml/ns/javaee"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/ejb-jar_3_1.xsd"
  version="3.1">
<enterprise-beans>
<session>
<ejb-name>CartBean
</ejb-name>
<local-bean/>
<business-remote>com.ibm.example.Cart
</business-remote>
<ejb-class>com.ibm.example.CartBean
</ejb-class>
<session-type>Stateless
</session-type>
</session>
</enterprise-beans>
</ejb-jar> 

No-Interface Local View
A session bean might now subclass another session bean
Configure EJB 3.1 session bean methods to be asynchronous

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