book

The Definitive Guide to SOA: Oracle® Service Bus, SECOND EDITION

by Jeff Davies, David Schorow, Samrat Ray, David Rieber

September 2008

Intermediate to advanced

536 pages

15h 36m

English

Apress

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About the Oracle Service BusWhat's New in OSB 10.3?Who This Book Is ForHow This Book Is StructuredDownloading the CodeContacting the Authors
The Problems We Face TodayEarly ESBsModern SolutionsEnter Oracle Service BusWon't This Lock Me into Oracle Technologies?Why Buy an Enterprise Service Bus?Summary
Installing the SoftwareUsing a Single WorkSpace Studio IDEConfiguring WorkSpace StudioSummary

Service MediationCreating and Deploying a Web ServiceSummary
Message Flow OverviewGoodbye World!Summary
Why Learn About WSDL?WSDL BasicsWSDL Best PracticesVisualizing Documents from SchemasSummary
Scenario 1: User Requests a Product CatalogScenario 2: User Orders a ProductSummary
Synchronous InvocationAsynchronous InvocationParallel Calls with Split-JoinSummary
Service Type and Transport Protocol OverviewSOAP with WSDLSOAP Without WSDLXML with WSDLXML Without WSDLMessaging Service TypesTransport-Typed ServicePOJOsSummary
Web Services Reliable MessagingService ThrottlingService PoolingSOAP with AttachmentsSummary
MonitoringReportingSummary
An Overview of SOA SecurityHow OSB Fits into an SOA Security ArchitectureOSB End-to-End Security ConfigurationPerformance Trade-Offs Using SecuritySummary
Core ConceptsAdvanced ConceptsArchitectural TransformationNot Just an ESB!Summary
Standards, Standards, and More StandardsWhere Do We Begin?The First ProjectThe Second ProjectSummary
What Is a Service?Service OrientationWhat Is Versioning?Do We Version Services or Operations?Constrained by RealityIf Not Versions, Then What?The Service Life CycleThe Future of ITSummary
Factors That Affect OSB PerformanceTuning an OSB InstanceBest Practices for OSB Proxy DesignXQuery and XPath OptimizationsScalability Considerations for an ESBHandling Large Messages with Content StreamingFlow-Control Patterns Using OSBSummary
DeploymentOSB Domains and ClustersSummary
Introduction to Custom TransportsThe Sample Socket TransportBuilding a Custom TransportAdvanced Custom Transport TopicsSummary
SecurityAdministrationMessaging and ProtocolsXML, XQuery, and XSLTMiscellaneousSummary

Content preview from The Definitive Guide to SOA: Oracle® Service Bus, SECOND EDITION

CHAPTER 14Versioning Services

Change is inevitable. That's a basic fact of life, and SOA doesn't change that. SOA promises to make your company and IT systems more tolerant of change—more agile. You need to do your part by understanding the different types of changes that can occur, and then developing and enforcing governance policies to manage changes in your services. Managing change is not just a technology problem; it's also a governance problem that requires the full participation of the people responsible for SOA governance.

Tools do play a role in governing the service life cycle of services. Your particular strategy will be influenced by the tools you have available to manage changes to services. For example, if you're writing web services ...