June 2004
Intermediate to advanced
276 pages
15h 17m
English
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Chapter 6. Service Containers and Abstract Endpoints
In the next three chapters, we will examine the details of what makes an ESB. The ESB provides an architecture that brings together all the concepts described in previous chapters into an infrastructure that can span an extended enterprise and beyond. The base definition of an ESB provided by Gartner Inc. and discussed in Chapter 1, describes an ESB as consisting of four things: Message Oriented Middleware, web services, intelligent routing based on content, and XML data transformation.
Expanding on the definition from Gartner, we can go into more details of these key components:
Message Oriented Middleware (MOM)
Robust, reliable transport
Efficient movement of data across abstract data channels
End-to-end reliability
Web services
Service Oriented Architecture (SOA)
Abstract business services
Intelligent routing
Message routing based on content and context
Message routing based on business process rules
Business process orchestration based on a rules language such as BPEL4WS (Business Process Execution Language for Web Services)
XML transformation
Based on XSLT and independently deployed service types
The integration fabric that supports all of this requires an infrastructure, which includes the following:
Highly distributed, scalable service containers
Event-driven service invocation
Centralized management of distributed integration configurations
Diverse client connectivity and support for multiple protocols
Seamless, dynamic routing of data across ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.