Invoking a web service

Question

Hello All,
I am trying to invoke a web service hosted on webMethods (our R/3 being an older version, can't expose function modules as web services). I am able to generate Java proxies from the wsdl provided by webMethods. But, I found by studying the generated Java proxies/stubs that its required to send both input (import) and output (export) parameters to invoke the function module.
To give you an example, lets say, my function module takes 3 input parameters and returns 120 output parameters. So, to invoke this function, I thought I just need 3 parameters to be supplied to make a call like invokeXYZ(param1, param2, param3). But, when I looked at the generated code, I saw that I need to supply a total of 3 + 120 parameters to invoke the web service. 120 of them are empty objects of type output parameter.
I think either SAP isn't generating the proxy classes correctly (You don't want to supply 120 arguments to make a call) or I am doing something wrong.
Any suggestions/comments appreciated.
Thanks,
Kiran

Answer 1

Valery,
Here's the wsdl. I removed most of the out parameters for brevity.
<?xml version="1.0" encoding="UTF-8"?>
     <wsdl:definitions name="Neal_test_package_Handlers" targetNamespace="http://hpgena2d/"
               xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
               xmlns:xsd="http://www.w3.org/2001/XMLSchema"
               xmlns:http="http://schemas.xmlsoap.org/wsdl/http/"
               xmlns:tns="http://hpgena2d/"
               xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/"
               xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/">
     <wsdl:types>
        <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" targetNamespace="http://localhost/Neal_test_package/Handlers/invokeZ_CCS_CUST_INFO" xmlns:tns="http://localhost/Neal_test_package/Handlers/invokeZ_CCS_CUST_INFO">
          <xsd:complexType name="__in">
            <xsd:sequence>
              <xsd:element name="wmAlias" nillable="true" type="xsd:string"/>
              <xsd:element name="SEL_CONTRACT_ACCOUNT" nillable="true" type="xsd:string" minOccurs="0"/>
              <xsd:element name="SEL_LEGACY_ACCOUNT" nillable="true" type="xsd:string" minOccurs="0"/>
            </xsd:sequence>
          </xsd:complexType>
          <xsd:complexType name="__out">
            <xsd:sequence>
              <xsd:element name="ACCOUNT_BALANCE" nillable="true" type="xsd:string"/>
              <xsd:element name="ACCOUNT_NAME" nillable="true" type="xsd:string"/>
              <xsd:element name="ACCOUNT_STATUS" nillable="true" type="xsd:string"/>
              <xsd:element name="ACCOUNT_STATUS_DESC" nillable="true" type="xsd:string"/>
              <xsd:element name="APP_CYCLING" nillable="true" type="xsd:string"/>
            </xsd:sequence>
          </xsd:complexType>
        </xsd:schema>
     </wsdl:types>
     <wsdl:message name="invokeZ_CCS_CUST_INFOInput">
          <wsdl:part name="wmAlias" type="xsd:string"/>
          <wsdl:part name="SEL_CONTRACT_ACCOUNT" type="xsd:string"/>
          <wsdl:part name="SEL_LEGACY_ACCOUNT" type="xsd:string"/>
     </wsdl:message>
     <wsdl:message name="invokeZ_CCS_CUST_INFOOutput">
          <wsdl:part name="ACCOUNT_BALANCE" type="xsd:string"/>
          <wsdl:part name="ACCOUNT_NAME" type="xsd:string"/>
          <wsdl:part name="ACCOUNT_STATUS" type="xsd:string"/>
          <wsdl:part name="ACCOUNT_STATUS_DESC" type="xsd:string"/>
     </wsdl:message>
     <wsdl:portType name="Neal_test_package_HandlersPortType">
          <wsdl:operation name="invokeZ_CCS_CUST_INFO">
               <wsdl:input message="tns:invokeZ_CCS_CUST_INFOInput"/>
               <wsdl:output message="tns:invokeZ_CCS_CUST_INFOOutput"/>
          </wsdl:operation>
     </wsdl:portType>
     <wsdl:binding name="Neal_test_package_HandlersBinding" type="tns:Neal_test_package_HandlersPortType">
          <soap:binding style="rpc" transport="http://schemas.xmlsoap.org/soap/http"/>
          <wsdl:operation name="invokeZ_CCS_CUST_INFO">
               <soap:operation soapAction=""/>
               <wsdl:input>
                    <soap:body encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" namespace="http://hpgena2d/Neal_test_package.Handlers" use="encoded"/>
               </wsdl:input>
               <wsdl:output>
                    <soap:body encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" namespace="http://hpgena2d/Neal_test_package.Handlers" use="encoded"/>
               </wsdl:output>
          </wsdl:operation>
     </wsdl:binding>
     <wsdl:service name="Neal_test_package_HandlersService">
          <wsdl:port name="Neal_test_package_HandlersPort0" binding="tns:Neal_test_package_HandlersBinding">
               <soap:address location="https://hpgena2d:5555/soap/FEWSController"/>
          </wsdl:port>
     </wsdl:service>
     </wsdl:definitions>
Thanks for your time,
Kiran