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Read Java Certification SCBCD Study Guide - 1

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Changes in Java Certification? Probably, but not so much as you believe Cool

Happens much since Java 1.2, 1.3? Yes and not. We are starting to publish SCBCD Study Guide for you who is specializing in leveraging the Java 2 Platform, Enterprise Edition (J2EE) platform technologies. Despite to fact that this guide is for J2EE 1.3 you will get 95% of knowledge to pass 1.4 exam. By the way if you did not know, this certification is just one exam, but requires that you passed any certification for Sun Certified Programmer for Java 2 Platform (any edition) already.

SCBCD Study Guide

Chapter 1. EJB Overview

Identify the use, benefits, and characteristics of Enterprise JavaBeans technology, for version 2.0 of the EJB specification.

Characteristics

Enterprise JavaBeans architecture is the standard component architecture for building distributed object-oriented business applications.

Enterprise JavaBeans architecture makes it possible to build distributed applications by combining components developed using tools from different vendors.

Application developers do not have to understand low-level transaction and state management details, multi-threading, connection pooling, and other complex low-level APIs.

Enterprise JavaBeans applications follow the Write Once, Run Anywhere™ philosophy of the Java programming language.

The Enterprise JavaBeans architecture addresses the development, deployment, and runtime aspects of an enterprise application’s life cycle.

Enterprise JavaBeans architecture defines the contracts that enable tools from multiple vendors to develop and deploy components

Enterprise JavaBeans architecture is compatible with the CORBA protocols. This allows remote invocations on session and entity beans from J2EE components that are deployed in products from different vendors.

Benefits

Defines the integration of EJB with the Java Message Service. Introduces message-driven beans (MDB) - a stateless components that are invoked by the container as a result of the arrival of a JMS message (MDB does not have home/home-local or remote/local interfaces).

Provides a local client view and support for efficient, lightweight access to enterprise beans from local clients.

Provides improved support for the persistence of entity beans.

Provides improved support for the management of relationships among entity beans (Local CMP Beans only).

Provides a query syntax (EJB QL) for entity bean finder and select methods (CMP only).

Provides support for additional methods in the home interface (business logic methods via ejbHome<MethodName>().

 

IBA JV

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