Service Description

HydraExpress Web Service Development Guide
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3.2 Service Description

Following is the HelloWorld.wsdl located in your <installdir>\examples\webservices\HelloWorld directory.

<?xml version="1.0"?>

<definitions name="HelloWorldService" 
xmlns:tns="http://www.roguewave.com/webservice/examples/HelloWorld.wsdl"   
targetNamespace="http://www.roguewave.com/webservice/examples/HelloWorld.wsdl" 
xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" 
xmlns="http://schemas.xmlsoap.org/wsdl/">
  <message name="HelloRequest">                                          //1 
    <part name="hellorequest" type="xsd:string"/>
  </message>
  <message name="HelloResponse">
    <part name="return" type="xsd:string"/>
  </message>
  <portType name="GreetingPortType">                                     //2
    <operation name="sayHello">
      <input message="tns:HelloRequest" />
      <output message="tns:HelloResponse" />
    </operation>
  </portType>
  <binding name="GreetingBinding" type="tns:GreetingPortType">           //3
    <soap:binding style="rpc" 
                transport="http://schemas.xmlsoap.org/soap/http"/>
    <operation name="sayHello">
      <soap:operation soapAction="say_hello"/>
      <input>
        <soap:body use="literal" 
                 attribute="http://www.roguewave.com/rwsf/webservice/examples"/>
      </input>
      <output>
        <soap:body use="literal" 
                 attribute="http://www.roguewave.com/rwsf/webservice/examples"/>
      </output>
    </operation>
  </binding>
  <service name="GreetingService">                                       //4
    <documentation>Basic Hello World Service.</documentation>
    <port name="GreetingPort" binding="tns:GreetingBinding">
      <soap:address location="http://localhost:8090/helloworld/HelloWorld"/>
    </port>
  </service>
</definitions>

Table 1: WSDL description for the HelloWorldService

		<Definitions>: The HelloWorldService
//1	Abstract Details	<message> `name=HelloRequest` `name=HelloResponse` Request and response messages, each with one string part.
//2		<portType> `name=GreetingPortType` Defines `sayHello` request-response operation with input message `HelloRequest` and output message `HelloResponse`.
//3	Concrete Details	<binding> `name=GreetingBinding` The SOAP binding specifies that an RPC SOAP message will be sent via the HTTP or HTTPS transport protocol.
//4		<service> `name = GreetingService` Specifies concrete port and binding. Port includes a concrete address for invoking the HelloWorldService at `http://localhost:8090/helloworld/HelloWorld`

The operation sayHello receives a message containing a string. The operation then returns a message containing a string that holds the value, "Hello World!"

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