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Validation Abstraction (Erl)

How can service contracts be designed to more easily adapt to validation logic changes?

Validation Abstraction

Problem

Service contracts that contain detailed validation constraints become more easily invalidated when the rules behind those constraints change.

Solution

Granular validation logic and rules can be abstracted away from the service contract, thereby decreasing constraint granularity and increasing the contract's potential longevity.

Application

Abstracted validation logic and rules need to be moved to the underlying service logic, a different service, a service agent, or elsewhere.

Impacts

This pattern can somewhat decentralize validation logic and can also complicate schema standardization.

Validation Abstraction: By reducing the overall quantity of constraints and especially filtering out those more prone to change, the longevity of a service contract can be extended.

By reducing the overall quantity of constraints and especially filtering out those more prone to change, the longevity of a service contract can be extended.

SOA Design Patterns

This page contains excerpts from:

SOA Design Patterns by Thomas Erl

(ISBN: 0136135161, Hardcover, Full-Color, 400+ Illustrations, 865 pages)

For more information about this book, visit www.arcitura.com/books.

Web Service Contract Design and Versioning for SOA

This page contains excerpts from:

Web Service Contract Design and Versioning for SOA

by Thomas Erl, Anish Karmarkar, Priscilla Walmsley, Hugo Haas, Umit Yalcinalp, Canyang Kevin Liu, David Orchard, Andre Tost, James Pasley

For more information about this book, visit www.arcitura.com/books.