IBM InfoSphere Master Data Management, Version 10.1

Configuring the Request and Response Framework

The Request and Response Framework provides a consistent entry point into InfoSphere® MDM Server enterprise applications.

It offers common infrastructure services such as authorization checking, transaction demarcation, and others for all incoming transactions. It provides a number of configuration options and extension points to customize it.

Understanding the Request and Response Framework
The Request and Response Framework perform various functions using several components that make up the framework.
Understanding transaction flow
As the Request and Response Framework receives a transaction request, it takes it through a series of predefined steps designed to process a request and generate a transaction response.
Understanding DWLServiceController
DWLServiceController is the entry point for InfoSphere MDM Server. It is a stateless session bean that the client application uses to access the service remotely and enable distributed transaction management.
Understanding RequestHandler
RequestHandler acts as the main dispatcher class for handling the request. It is responsible for interacting with the parser, constructor and indirectly with the business proxy for parsing, response construction and business processing of the request.
Understanding parser components
The parser is responsible for parsing the request and constructing business objects that contain the data sent in the request. These business objects are returned back to the request handler for subsequent business processing through the business proxy layer.
Understanding the InfoSphere MDM Server XML parser
InfoSphere MDM Server provides an XML parser for parsing InfoSphere MDM Server XML as defined in MDMDomains.xsd. The implementation class for this parser is com.dwl.tcrm.coreParty.xmlHandler.XMLRequestParser.
Understanding constructor components
A constructor within the Request and Response Framework is responsible for constructing the response that is returned to the caller. Each incoming transaction request can select its own constructor by passing it the appropriate value for the Constructor parameter in the context: HashMap input parameter for the DWLServiceController.
Understanding the InfoSphere MDM Server XML constructor
InfoSphere MDM Server provides a response constructor to build an XML response as defined by tcrm_response.xsd. The implementation class for this parser is com.dwl.tcrm.coreParty.xmlHandler.XMLResponseConstructor.
Understanding business proxies
Business proxies provide the ability to compose new transactions by leveraging existing InfoSphere MDM Server transactions. A business proxy is a Java class that acts as a bridge between the Request and Response Framework the and Service Controller component, and contains composite business transaction logic.

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Last updated: 18 Jul 2013

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