topic2 part2 web service creation

SAP FlashbookProviding Web ServicesPart 2Author: Susanne Rothaug

This e-learning session contains narration!

SAP AG 2003, Title of Presentation, Speaker Name / 2

Objectives

After completing this session, you will be able to:

manually create and edit a

Web Service Definition and a Web Service Configuration


Web Service Definition

A Web service Definition is the assignment of behavior to a Virtual Interface via features

MotivationA Web service is not only described by its interface but also by its behavior with respect to

stateless/stateful communication, transactional behavior, security requirements, …

Idea describe this kind of behavior via abstract features leave it to the Web Service Configurator to assign technical protocols to these

abstract features Example:

Feature: Stateful Technical Protocols: Stateful via HTTP-Cookies,

Stateful via URL-Extensions


Web Service Definition

Benefits

The same Web Service definition can be deployed to various application servers which may differ in their technical capabilities

Web Service Client implementations do not depend on technical server information

Clients are generated based on implementation-independent Web Service definitions

Technical details are configured separately in the Web Service Client Runtime


Create Web Service Definition

Choose “Web Service

Definition”



Specify a name

Choose a package



Overview of the WSD



Features of the WSD: Session



Features of the WSD:

Authentication




Authorization




Transport Guarantee



Feautures of the WSD:

Message ID


Web Service Configuration & Deployment - 1 -

A Web Service Configuration is the assignment of technical

protocols to abstract features

Based on the Web Service capabilities of the specific SAP Web Application Server

Configuration of additional Web Service Runtime featuresLogging, Tracing, MonitoringSecurity Roles…

Deployment as usualSDM deployment in Java



Create New Deployment Descriptor



Select “Web Service

Configurations”…

…and choose “Add”.



Choose the EJB

Reference



Choose the WSD

Reference



Select “CreditCheckWS”

…

…and choose “Add”.



Choose the transport binding



Overview of the WSC



Authentication Types



Create EAR project



Build EAR file


Summary

Now you should be able to:

manually create and edit a

Web Service Definition and a Web Service Configuration

topic2 part2 web service creation

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