Web Service Example 6: Step-by-Step Instructions

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This topic contains step-by-step instructions to complete Web Service Example 6: RPC-Oriented Method with Complex Type Soap Array Parameters.

To define an RPC-oriented method that retrieves Scheduled Tour details for a specified destination:

1. In the Definer, in the Web Service Provider window, query the TRAVELSERVICE web service provider that you defined in Example 1.


2. On the Methods tab page, define a GetScheduledToursArray method, set the Operation Style to: RPC-oriented, and set the Method Call to: Synchronous.


3. Store the XSL transformation defined in: Web Service Example 6: Transforming Attributes to Child Elements in a file: att2childelts.xsl.


4. Define SQL statement:

INVOKE     USXSL.apply




INVOKE     XML.export


SELECT     tour_type, start_date, return_date, price, max_part, guide

FROM     schedtour

WHERE    destination=:destination


'<path to file>/att2childelts.xsl'

5. Click the Check button, and in the Question dialog, click Yes.

One input parameter and one output parameter, by default RETURN, are generated.

6. Define a new domain:

Domain Name: XMLDOMAIN

Data Type: VARCHAR2

Column Width: 2000

IO Format: XML

7. From the Definer menu, select: Define, Web Services Provider, Namespaces. Define a Namespace:

Namespace Alias: Array

Namespace: urn:Array

Location: http://<web server>/TravelService/ScheduledToursArray.xsd

8. Define a ScheduledToursArray.xsd XML schema file that describes the structure of the returning XML document. This XML schema file is described in: Web Service Example 6: XML Schema Definition for Scheduled Tours.


9. For the GetScheduledToursArray method of the TRAVELSERVICE web service provider, change some attributes of the output parameter:
· Change the parameter name to: Scheduled_Tours.


· Change the Domain to: XMLDOMAIN.


· Change the Namespace Alias to: Array.


· Click the XML Data Type button and select the ArrayOfScheduledTours record.
10. Save your changes.


11. Click the Create Web Service button.

The web server publication folder now contains an up-to-date TRAVELSERVICE.xml, TRAVELSERVICE.asp file, and TRAVELSERVICE.inc file.

12. Click the Create WSDL File button.

The web server publication folder now contains an up-to-date TRAVELSERVICE.wsdl file.

13. Restart the Rules Service for the TRAVEL application that you configured in Example 1.


14. From the Definer catalog, open the TRAVELCOMPONENT Web Service Component that you defined in Web Service Example 1: Define a Web Service Component.


15. Click the Refresh button.


16. In the Refresh Web Service Component dialog, select the GetScheduledToursArray method, and click OK.


17. Open the application that contains the web service component, and in the SQL command dialog, issue SQL statement:




All scheduled tours to this destination are returned in array format.