All Examples  All EJB Examples  This Package

Class examples.ejb.subclass.child.ChildBean

java.lang.Object
   |
   +----examples.ejb.subclass.parent.ParentBean
           |
           +----examples.ejb.subclass.child.ChildBean

public class ChildBean

extends ParentBean

implements SessionBean

• Child class to the ParentBean class
• Using subclassing to simplify related bean classes
• Contains only methods that are either unique to the Child class or overload methods in the Parent Bean
• Using JNDI to look up and call another bean from within a bean (callParentBean)

Author:

Copyright (c) 1998 by WebLogic, Inc. All Rights Reserved.

Copyright (c) 1998-1999 by BEA WebXpress. All Rights Reserved.

ChildBean()

callParentBean()

Looks up a ParentBean and calls its parentMethodOnly().

childSaysHello()

Returns a message identifying the method.

parentSaysHello()

Returns a message identifying the method.

 public ChildBean()

 public String childSaysHello()

Returns a message identifying the method. This method is unique to the Child bean.

Returns:

String Message

 public String parentSaysHello()

Returns a message identifying the method. This method is inherited and overloaded by the Child bean.

Returns:

String Message

Overrides:

parentSaysHello in class ParentBean

 public String callParentBean() throws RemoteException

Looks up a ParentBean and calls its parentMethodOnly(). Returns a message identifying the method.

• Demonstrates calling one bean from another bean
• Uses SessionContext ctx to generate a new Context
• Uses that Context to find the ParentHome

Returns:

String Message

Throws: RemoteException

if there is a communications or systems failure

All Examples  All EJB Examples  This Package