Enterprise Corba

by Slama, Dirk

• ISBN13: 9780130839633
• ISBN10: 0130839639
• Edition: 1st
• Format: Paperback
• Copyright: 1999-03-01
• Publisher: PRENTICE HALL

Summary

Enterprise CORBA is a complete blueprint for building large scale CORBA applications with the reliability, scalability, and manageability today's enterprises require -- using technologies in the marketplace today. In this book, three leading developers of large-scale CORBA applications distill their hard-won expertise. Review CORBA fundamentals, architecture, services, and development approaches that are key to enterprise development. Understand crucial database integration and transaction processing issues, including object persistence, and handling long-lived transactions involving human users. Maximize scalability through improved server resource management, load balancing, fault tolerance, component testing, and other means. Finally, discover how CORBA and distributed objects are changing object-oriented software engineering; the strengths and limits of today's tools; and how to use new UML extensions to model your CORBA applications more precisely.

Author Biography

Dirk Slama (Tokyo, Japan), Jason Garbis (Cambridge, Massachusetts, USA), and Perry Russell (Perth, Australia) are consultants with IONA Technologies' Professional Services division.

Table of Contents

Foreword	xi	(2)
Sean Baker
Preface	xiii
How the Book is Organized	xiv	(1)
CORBA Compliance	xv	(1)
Acknowledgments	xvi
Part 1: Foundations	1	(64)
1 Introduction	3	(6)
Overview	4	(1)
Short Glossary of Terms	4	(1)
Graphical Notation	5	(4)
2 CORBA Revisited	9	(26)
The Evolution of CORBA	9	(1)
BOA vs. POA Generation	10	(1)
The Invocation Lifecycle	11	(12)
The Object Lifecycle	23	(11)
Summary	34	(1)
3 CORBA Services Revisited	35	(4)
Core Services	35	(1)
Database Integration and Transaction Processing	36	(2)
Scalability Issues	38	(1)
Summary	38	(1)
4 Overview of a Simple Example	39	(10)
Introduction	39	(2)
The StockWatch Component	41	(5)
The Portfolio Manager Component	46	(3)
5 Performance Considerations	49	(16)
Performance Implications of IDL Design	49	(13)
Transferring Large Amounts of Data	62	(3)
Part 2: Core Services	65	(56)
6 Object Location	67	(18)
A Model for Locating Objects	67	(1)
CORBA Object Location Services	68	(11)
Other Ways to Locate Objects	79	(3)
Selecting An Object Location Mechanism	82	(1)
Selecting Objects For Publication	83	(2)
7 Messaging	85	(18)
CORBA and Messaging	85	(1)
ORB Support for Messaging	86	(3)
The Need for Message-Oriented Middleware	89	(1)
Existing Message-Oriented Middleware Products	90	(1)
Related CORBA Services	90	(5)
Multicast Messaging	95	(6)
Summary	101	(2)
8 Security	103	(18)
Security Concepts	104	(2)
Enterprise System Security Requirements and Policies	106	(3)
CORBA Security	109	(5)
Solutions for the Real World	114	(7)
Part 3: Database Integration and Transaction Processing	121	(98)
9 Object Persistence	123	(18)
Introduction	123	(4)
Accessing Relational Databases	127	(1)
Object/Relational Mapping	128	(8)
Object Databases	136	(1)
Data Consistency	137	(3)
Summary	140	(1)
10 Database Integration	141	(18)
System Architectures	141	(1)
Related OMG Work	142	(2)
Integration Aspects	144	(1)
CORBA Business Objects	145	(4)
ODBMS	149	(1)
CORBA Relationship Service	149	(1)
CORBA Query Service	150	(1)
Application-Specific Solutions	151	(1)
Tradeoffs	151	(3)
Stateless Servants	154	(1)
Stateful Servants	154	(1)
Database Adapters	155	(1)
The Billion-Object CORBA System	156	(3)
11 Transactions in a CORBA Environment	159	(6)
Two-Tier vs. Three-Tier Architectures	159	(1)
Client-Controlled vs. Server-Controlled Transactions	159	(1)
Server-Controlled Transactions	160	(2)
Client-Controlled Transactions	162	(1)
Summary	163	(2)
12 Distributed Transaction Processing	165	(30)
Transaction Processing	165	(7)
CORBA Object Transaction Service	172	(14)
Advanced Transaction Models	186	(8)
Summary	194	(1)
13 User Sessions	195	(24)
Short-Lived and Long-Lived Transactions	195	(2)
Concurrency Control	197	(3)
Sessions in a Three-Tier Environment	200	(3)
Case Study: Insurance Contract Manager	203	(13)
Summary	216	(3)
Part 4: Scalability Issues	219	(104)
14 Managing Server Resources	221	(32)
Memory Management	221	(10)
Connection Management	231	(11)
Thread Management	242	(11)
15 Load Balancing	253	(30)
The Need for Load Balancing	253	(2)
Application Partitioning	255	(3)
Replication	258	(3)
Replication Mechanisms	261	(13)
Replication Frameworks	274	(6)
Measuring the cost of load balancing	280	(2)
Summary	282	(1)
16 Fault Tolerance	283	(28)
What Is Fault Tolerance?	283	(7)
Current CORBA Support for Fault Tolerance	290	(1)
Fault Tolerance and Replication	291	(9)
Case Study--A High-Availability CORBA System	300	(7)
Future CORBA Support for Fault Tolerance	307	(2)
Summary	309	(2)
17 System Management and Maintenance	311	(12)
System Management	311	(3)
Managing the Active System	314	(3)
System Infrastructure Maintenance	317	(4)
Summary	321	(2)
Part 5: Engineering CORBA Systems	323	(36)
18 Consequences for the Engineering Process	325	(24)
CORBA and the Software Engineering Process	325	(3)
CORBA Component Model	328	(6)
Modeling CORBA Components	334	(9)
Mapping Modeling Artifacts to Implementations	343	(4)
Summary	347	(2)
19 Automating the Engineering Process	349	(8)
CASE	349	(1)
Code Generation	350	(5)
Process Wizards	355	(1)
Summary	356	(1)
20 Conclusion	357	(2)
The Complexity Remains,...	357	(1)
...But There Is Hope On The Horizon	358	(1)
References	359	(2)
Index	361