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This topic provides background information about the SOAP messages that are sent in Web Service Example 5: Document-Oriented Method with Complex Type Parameters.
In example 5, the following client SQL statement is executed:
INVOKE TRAVELCOMPONENT.GETSCHEDULEDTOURS WITH
SELECT '<Destination xmlns="http://MyWebServer/TravelService/TRAVELSERVICE.wsdl">AUSTRALIA</Destination>'
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The Web Service component handles this statement, and composes a SOAP request message. The information how to compose this message is defined in the TRAVELSERVICE.wsdl file:
<wsdl:operation name="GetScheduledTours">
<soap:operation soapAction="http://MyWebServer/TravelService/TRAVELSERVICE.ashx#GetScheduledTours" style="document"/>
<wsdl:input name="GetScheduledTours">
<soap:body use="literal"/>
</wsdl:input>
<wsdl:output name="GetScheduledToursResponse">
<soap:body use="literal"/>
</wsdl:output>
</wsdl:operation>
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In this code fragment, the attributes style="document" and use="literal" do NOT result in any method names or parameter names appearing in the SOAP request message. This is why in a document-oriented method, all XML elements must be included in the SQL statement:
<?xml version="1.0" encoding="UTF-8"?>
<soapenv:Envelope
xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Body> <Destination xmlns="http://MyWebServer/TravelService/TRAVELSERVICE.wsdl"
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/">
AUSTRALIA
</Destination>
</soapenv:Body></soapenv:Envelope>
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The body of this SOAP request message includes the XML elements that are included in the SQL statement.
Next, the following statement is sent to the Rules Service:
INVOKE TRAVELSERVICE.GetScheduledTours WITH
SELECT '... soap message above ...' request
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Then, the Web Service provider composes a SOAP response:
<soap:Envelope
xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:tns="http://MyWebServer/TravelService/TRAVELSERVICE.wsdl">
<soap:Body>
<tns:Scheduled_Tours documentName="Scheduled Tours">
<SCHEDTOUR TOUR_TYPE="ISLAND SUNTANNER" START_DATE="2005-11-01000000" RETURN_DATE="2005-11-13000000" PRICE="120" MAX_PART="10" GUIDE="137">
</SCHEDTOUR>
<SCHEDTOUR TOUR_TYPE="ISLAND SUNTANNER" START_DATE="2005-11-15000000" RETURN_DATE="2005-11-27000000" PRICE="122" MAX_PART="5" GUIDE="6">
</SCHEDTOUR>
</tns:Scheduled_Tours>
</soap:Body>
</soap:Envelope>
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The body of this SOAP response message only includes the Scheduled_Tours parameter of the web service provider method in XML format.
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