Introduction

This chapter covers the following specific concepts:

  • EJB container-managed relationships (CMR)— Relationships are a way to define associations between entity beans. Built-in container support is provided to support relationships in EJB.

  • EJB inheritance— Inheritance is the ability of entity beans to inherit from other entity beans. It is an IBM extension already provided for EJB 1.1 by IBM products such as VisualAge for Java and WebSphere Application Server.

  • EJB custom query methods— Query methods are any method in the home that is used to locate entity beans, such as findXxxx (called finder methods), and selectXxxx (called select methods). We mentioned that with CMPs, the container is responsible for generating the actual database ...

Get EJB 2.0 Development with WebSphere Studio Application Developer now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.

Start your free trial