CORBA, J2EE, and Tuxedo Interoperability and Coexistence

 

This document describes how to build and run the suite of sample applications, which show how Enterprise JavaBeans and CORBA objects can coexist in the same BEA WebLogic EnterpriseTM application. This document is intended for programmers who are interested in creating secure, scalable, transaction-based server applications. It assumes you are knowledgeable with CORBA, Enterprise JavaBeans, and the C++ and Java programming languages.

 

Introduction

Interoperability Among the CORBA, J2EE, and Tuxedo Programming Models

BEA Clients and Servers

T-Engine Server Interoperability

Java Enterprise Tuxedo (JET) Software

Transactions and Security

T-Engine Client and Server Interoperability

Transactions and Security Within the T-Engine Environment

A Note About BEA Jolt

T-Engine RMI Clients and the WebLogic RMI-on-IIOP Protocol

J-Engine and T-Engine Interoperability

Third-party ORB Interoperability

T-Engine Interdomain Interoperability

WebLogic Enterprise and Tuxedo Domains Interoperability

Overview of the T-Engine Interoperability Sample Applications

 

T-Engine EJB-to-CORBA/Java Simpapp Sample Application

How the EJB-to-CORBA/Java Simpapp Sample Application Works

Software Prerequisites

Implementing the Bridge Object to Invoke a CORBA/Java Object

The OMG IDL Code for the EJB-to-CORBA/Java Simpapp Interfaces

Building and Running the EJB-to-CORBA/Java Simpapp Sample Application

Verifying the Settings of the Environment Variables

Verifying the Environment Variables

Changing the Environment Variables

Copying the Files for the Java Simpapp Sample Application into a Work Directory

Files in the Work Directory

EJB Simpapp Files

CORBA/Java Simpapp files

Utility Files

Changing the Protection Attribute on the Files for the EJB-to-CORBA/Java Simpapp Sample Application

Executing the runme Command

Running the Sample Application

Processes and Files Generated by the EJB-to-CORBA/Java Simpapp Sample Application

Processes Started

Files Generated in the corbaj Directory

Files Generated in the ejb_corbaj Directory

Files Generated in the results Directory

Stopping the EJB-to-CORBA/Java Simpapp Sample Application

 

CORBA/C++-to-T-Engine EJB Simpapp Sample Application

How the CORBA/C++-to-T-Engine EJB Simpapp Sample Application Works

Software Prerequisites

Implementing the Bridge Object to Invoke an EJB

The OMG IDL Code for the CORBA/C++-to-T-Engine EJB Simpapp Interfaces

Building and Running the CORBA/C++-to-T-Engine EJB Simpapp Sample Application

Verifying the Settings of the Environment Variables

Verifying the Environment Variables

Changing the Environment Variables

Copying the Files for the CORBA/C++-to-EJB Simpapp Sample Application into a Work Directory

Files in the Work Directory

CORBA/C++ Client Files

EJB Server Files

Utility Files

Changing the Protection Attribute on the Files for the CORBA/C++-to-EJB Simpapp Sample Application

Executing the runme Command

Running the Sample Application

Processes and Files Generated by the CORBA/C++-to-EJB Simpapp Sample Application

Processes Started

Files Generated in the cpp Directory

File Generated in the cpp_ejb Directory

Files Generated in the results Directory

Stopping the CORBA/C++-to-T-Engine EJB Simpapp Sample Application

 

CORBA/Java-to-Tuxedo Simpapp Sample Application

How the CORBA/Java-to-Tuxedo Simpapp Sample Application Works

Key Application Components

Application Flow

OMG IDL Code for the CORBA/Java-to-Tuxedo Simpapp Interfaces

Software Prerequisites

Example Code

Building and Running the CORBA/Java-to-Tuxedo Simpapp Sample Application

Step 1: Verify the Settings of Environment Variables

Required Environment Variables

Optional Environment Variables

Verifying the Environment Variables

Changing the Environment Variables

Step 2: Copy the Files into a Work Directory

Copying the Files

Files Copied to the Working Directory

Step 3: Change the Protection Attribute on the Files

Step 4: Run the CORBA/Java-to-Tuxedo Simpapp Sample Application

Executing the runme Command

Running the Sample Application Manually

Server Processes Started by the Sample Application

Files Generated by the Sample Application

Stopping the CORBA/Java-to-Tuxedo Simpapp Sample Application

 

EJB-to-Tuxedo Simpapp Sample Application

How the EJB-to-Tuxedo Simpapp Sample Application Works

Key Application Components

Application Flow

Software Prerequisites

Example Code

Building and Running the EJB-to-Tuxedo Simpapp Sample Application

Step 1: Verify the Settings of Environment Variables

Required Environment Variables

Optional Environment Variables

Verifying the Environment Variables

Changing the Environment Variables

Step 2: Copy the Files into a Work Directory

Copying the Files

Files Copied to the Working Directory

Step 3: Change the Protection Attribute on the Files for the EJB-to-Tuxedo Simpapp Sample Application

Step 4: Run the EJB-to-Tuxedo Simpapp Sample Application

Executing the runme Command

Running the Sample Application Manually

Server Processes Started by the Sample Application

Files Generated by the Sample Application

Stopping the EJB-to-Tuxedo Simpapp Sample Application