Enterprise Transaction Processing Systems

In Enterprise Transaction Processing Systems, Dr. Ian Gorton distills years of consulting experience gained working with OTM technologies into an easily digestible tutorial which will be invaluable to anyone designing and building Transaction Processing systems. This book will provide an understanding of the concepts and features of the available OTM technologies, and describes the important practical issues that drive a project's architecture, detailed design and programming.

Key underlying concepts and techniques are explained Alternative architectural approaches are discussed All the major features of the CORBA Object Transaction Service (OTS) and two products, OrbixOTM and Encina++, that support this service are covered in detail Full length coded examples illustrate how to implement a transaction processing system in C++ using OrbixOTM and Encina++ New techniques on how to achieve improved performance are introduced Typical system architectures are described together with design and code examples which developers can leverage in their own systems.

Table of contents

Contents

Foreword

Preface

Acknowledgements

List of trademarks

Chapter 1 Introduction to enterprise transaction processing systems

Transaction processing: from mainframes to distributed systems

The anatomy of enterprise applications

Some examples of TP applications

What is a distributed transaction processing monitor?

Why are distributed TP systems attractive?

The state of the market

Summary

Further reading

Chapter 2 Distributed transaction processing fundamentals

Introduction

What is a transaction?

Two-phase commit

Transaction demarcation

Resource manager access using XA

Transactional remote procedure calls

Heuristic outcomes

Nested transactions

Transactional queuing technology

Locking

Recovery

System administration and monitoring requirements

Summary

Further reading

Chapter 3 Distributed transaction processing system architectures

Introduction

The need for software system architecture

A general transaction processing system architecture

Application server architectures

Summary

Further reading

Chapter 4 The object transaction service

Introduction

Background: CORBA

OTS architecture and features

Programming the CORBA object transaction service

Recoverable resources

Summary

Further reading

Chapter 5 Transaction processing monitors: Encina and the OrbixOTM

Introduction

Encina overview

OrbixOTM overview

Summary

Further reading:

Chapter 6 Case study

Introduction

The Stock-OnLine system

Database design

Summary

Further reading

Chapter 7 Building the case study with OrbixOTM

Overview

The Stock-OnLine CORBA interfaces

The Subscriber Client

The StockFeed Client

The StockDBMSAccess server

Implementing the server object

Communicating with MS SQL Server

Summary

Chapter 8 Building the case study with Encina++

Overview

The Stock-OnLine Encina interfaces

Initializing the Encina++ client

Performing transactions

The Encina++ StockDBMSAccess server

Security in Encina++

Deploying and managing the server

Summary

Chapter 9 Performance issues

Introduction

Understanding application performance

Test environment and results

Base timings

Performance under load

Improving performance

General performance tips

Summary

Further reading

Index