Best practice for simply invoking a web service

Question

Hello,
We have web services deployed and accessible as wsdl documents in the SOA service manager/UDDI product. What is the best practice for simply calling a web service method deployed without regard to whether it is deployed on Tomcat, WebSphere, Oracle, etc.
I'd just like to create a java client to make a web service call and JAXRPC has me confused because you seem to have to have custody of the web service implementation code to call a service. Can someone point me in the right direction?
Thanks,
Sean

Answer 1

Thanks. Here is my wsdl, how would you say this is encoded?
<?xml version="1.0" encoding="UTF-8"?>
<definitions
     name="OracleProcess"
     targetNamespace="http://xmlns.oracle.com/OracleProcess"
     xmlns="http://schemas.xmlsoap.org/wsdl/"
     xmlns:tns="http://xmlns.oracle.com/OracleProcess"
     xmlns:plnk="http://schemas.xmlsoap.org/ws/2003/05/partner-link/"
     xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
     xmlns:client="http://xmlns.oracle.com/OracleProcess"
    >
    <types>
        <schema attributeFormDefault="qualified" elementFormDefault="qualified" targetNamespace="http://xmlns.oracle.com/OracleProcess"
             xmlns="http://www.w3.org/2001/XMLSchema">
            <element name="OracleProcessProcessRequest">
                <complexType>
                    <sequence>
                        <element name="input" type="string"/>
                        <element name="input2" type="string"/>
                    </sequence>
                </complexType>
            </element>
            <element name="OracleProcessProcessResponse">
                <complexType>
                    <sequence>
                        <element name="result" type="string"/>
                    </sequence>
                </complexType>
            </element>
        </schema>
    </types>
    <message name="OracleProcessRequestMessage">
        <part name="payload" element="tns:OracleProcessProcessRequest"/>
    </message>
    <message name="OracleProcessResponseMessage">
        <part name="payload" element="tns:OracleProcessProcessResponse"/>
    </message>
    <portType name="OracleProcess">
        <operation name="process">
            <input message="tns:OracleProcessRequestMessage"/>
            <output message="tns:OracleProcessResponseMessage"/>
        </operation>
    </portType>
    <binding name="OracleProcessBinding" type="tns:OracleProcess">
        <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
        <operation name="process">
            <soap:operation style="document" soapAction="process"/>
            <input>
                <soap:body use="literal"/>
            </input>
            <output>
                <soap:body use="literal"/>
            </output>
        </operation>
    </binding>
    <service name="OracleProcess">
        <port name="OracleProcessPort" binding="tns:OracleProcessBinding">
            <soap:address location="http://st4s:9700/orabpel/default/OracleProcess/1.0"/>
        </port>
    </service>
  <plnk:partnerLinkType name="OracleProcess">
    <plnk:role name="OracleProcessProvider">
      <plnk:portType name="tns:OracleProcess"/>
    </plnk:role>
  </plnk:partnerLinkType>
</definitions>