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Foreword
Preface
1. Introduction to the Enterprise Service Bus
SOA in an Event-Driven Enterprise
A New Approach to Pervasive Integration
SOA for Web Services, Available Today
Conventional Integration Approaches
Requirements Driven by IT Needs
Industry Traction
Characteristics of an ESB
Adoption of ESB by Industry
2. The State of Integration
Business Drivers Motivating Integration
The Current State of Enterprise Integration
Leveraging Best Practices from EAI and SOA
Refactoring to an ESB
3. Necessity Is the Mother of Invention
The Evolution of the ESB
The ESB in Global Manufacturing
Finding the Edge of the Extended Enterprise
Standards-Based Integration
Case Study: Manufacturing
4. XML: The Foundation for Business Data Integration
The Language of Integration
Applications Bend, but Don't Break
Content-Based Routing and Transformation
A Generic Data Exchange Architecture
5. Message Oriented Middleware (MOM)
Tightly Coupled Versus Loosely Coupled Interfaces
MOM Concepts
Asynchronous Reliability
Reliable Messaging Models
Transacted Messages
The Request/Reply Messaging Pattern
Messaging Standards
6. Service Containers and Abstract Endpoints
SOA Through Abstract Endpoints
Messaging and Connectivity at the Core
Diverse Connection Choices
Diagramming Notations
Independently Deployable Integration Services
The ESB Service Container
Service Containers, Application Servers, and Integration Brokers
7. ESB Service Invocations, Routing, and SOA
Find, Bind, and Invoke
ESB Service Invocation
Itinerary-Based Routing: Highly Distributed SOA
Content-Based Routing (CBR)
Service Reusability
Specialized Services of the ESB
8. Protocols, Messaging, Custom Adapters, and Services
The ESB MOM Core
A Generic Message Invocation Framework
Case Study: Partner Integration
9. Batch Transfer Latency
Drawbacks of ETL
The Typical Solution: Overbloat the Inventory
Case Study: Migrating Toward Real-Time Integration
10. Java Components in an ESB
Java Business Integration (JBI)
The J2EE Connector Architecture (JCA)
Java Management eXtensions (JMX)
11. ESB Integration Patterns and Recurring Design Solutions
The VETO Pattern
The Two-Step XRef Pattern
Portal Server Integration Patterns
The Forward Cache Integration Pattern
Federated Query Patterns
12. ESB and the Evolution of Web Services
Composability Among Specifications
Summary of WS-* Specifications
Adopting the WS-* Specifications in an ESB
Conclusion
Appendix: List of ESB Vendors
Bibliography
Index