Enterprise Java Beans (EJB)
Duration
Five Days
Pre-requisites
It is recommended that the students are familiar with the following :- RMI
- CORBA
- JDBC
- Basic Java knowledge including exception handling, threads, full use of all the language constructs, and familiarity with the core Java 1.1 APIs.
Course Outline
Enterprise JavaBeans Concepts
- Distributed Object Systems: RMI and CORBA
- Enterprise defined/Goals of EJB
- Enterprise JavaBeans versus JavaBeans
- EJB Architecture
- Application Server
- EJB
- EJB Server
- EJB Container
- EJB Clients
- Interfaces: Home, Remote, and EJBObject
- Auxiliary Systems: JNDI, JTS
- Session versus Entity Beans
- Deploying an EJB
Session Beans
- Concepts
- Passivation/Activation
- Stateless versus Stateful
- Persistent Session Beans
- Interfaces and Classes
- Writing an EJB Client
- Locating Bean Container
- Allocating a Bean
- Interacting with the Bean
- Disposing of the Bean
- Packaging and Deploying EJB
- .ser files
- Manifest
- Deployment Descriptors
- Deploying Enterprise JavaBean Components
Entity Beans
- Introduction to Entity Beans
- Persistence
- Bean-Managed Persistence
- Container-Managed Persistence
- Interfaces and Classes
- Implementing a Finder Interface
- Calling Entity Beans from Session Beans
- Container Policies for Providing Synchronization
Transactions
- What are Transactions?
- What is a distributed transaction?
- Two-phase Commit
- Transaction Manager, Monitors, and Services
- CORBA's OTS
- Declarative Transactions
- Examples of Bean Managed Transactions
- Client Demarcated Transactions
- Transaction-Aware Database Drivers
Advanced Topics
- EJB-to-CORBA Bindings
- Servlets and EJBs
- Security
- AccessControlEntry
