This document is intended for JEUS system administrators and developers who are developing and deploying J2EE Enterprise JavaBeans to the JEUS system.
This guide describes not only the concept of EJB, but also EJB engines, EJB modules, and EJB clients. To fully understand this guide, users need to have an overall understanding of:
The JEUS system as a whole
Refer to the JEUS Server Guide
Java EE specification
The concept of EJB
This guide does cover basic technologies of EJB. Refer to other related documents.
Entity Bean is replaced by JPA from EJB 3.0. For more information, refer to the "JEUS JPA Guide".
This guide consists of 12 chapters and 2 appendices.
"Chapter 1. Introduction to EJB"
Describes the components and characteristics of EJB, and how to install EJB and to configure its environment.
Describes basic knowledge of the EJB engine. It also describes the top-level concepts of JEUS EJB, such as its structure, configuration, operation, monitoring, and tuning.
Describes EJB module structure and how to manage the modules.
"Chapter 4. Common Characteristics of EJB"
Describes the common characteristics of EJBs in JEUS environment.
"Chapter 5. Interoperability and RMI-IIOP"
Describes interoperability and RMI-IIOP protocol used by EJB.
Describes the concept of EJB clustering and how to configure main functions of EJB.
Describes stateless session beans and stateful session beans in detail.
Describes everything about configuring and tuning entity beans in JEUS EJB engine.
"Chapter 9. Message Driven Bean(MDB)"
Describes some precautions for using MDB (Message Driven Beans) in the JEUS engine.
"Chapter 10. EJB Timer Service"
Describes explanation and setting of the timer service in JEUS EJB.
Describes an example of EJB client programming and how to configure the InitialContext object.
"Chapter 12. Additional Functions"
Describes additional functions that are used to implement EJB in JEUS.
"Appendix A. Basic Java Type and Database Field Mappings"
Describes the basic mapping between a Java field type specified by JEUS and a database column type from the main Database vendors supported by JEUS.
"Appendix B. Instant EJB QL API Reference"
Describes how to use the instant EJB QL API methods and interfaces.
| Convention | Meaning |
|---|---|
| <AaBbCc123> | Filename of a program source code |
| <Ctrl>+C | Hold the Control key and press C |
| [Button] | Button or Menu name |
| Boldface | Emphasis |
| " " (double quotes) | Reference to chapters or sections in the manual, or to other related documentation |
| 'Input Item' | Description for an input item on the screen |
Hyperlink | E-mail account, website, link to other chapters or sections |
| > | Progress order of menus |
| +---- | Files or directories exist below. |
| |---- | Files or directories do not exist below. |
Note | Reference or note |
Caution | Caution |
| [Figure 1.1] | Figure name |
| [Table 1.1] | Table name |
AaBbCc123 | Java codes and XML documents |
[ command argument ] | Optional parameter |
| < xyz > | The contents between '<' and '>' will be changed to an actual value. |
| | | Selective argument. e.g. A|B: either A or B |
| … | Repetitive parameters, etc. |
This guide follows the UNIX style for all examples and screen configurations.
Users of other environments, such as Windows, can use this with a few considerations. For example, use the Windows style "\" as the directory delimiter instead of the UNIX style "/". Environment variables should also be changed to Windows style variables.
This guide primarily discusses Java, so most of the content should apply to all systems.
| Guide | Description |
|---|---|
| JEUS Server Guide | Describes overview of the JEUS system and server, and system management. |
| JEUS JPA Guide | Describes how to use TopLink Essentials integrated into JEUS. |
| JEUS Application & Deployment Guide | Describes various methods and tools used to deploy Java EE applications to JEUS. |
| JEUS Application Client Guide | Describes the interoperability between Java EE clients and JEUS. |
| JEUS Reference Book | Describes references for using JEUS. |
EJB 3.1 Specification
XML Reference - EJBMain.xml configuration
JEUS_HOME/docs/manuals/xml-reference/index.html
XML Reference - jeus-ejb-dd.xml configuration
JEUS_HOME/docs/manuals/xml-reference/index.html
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