WSDL interfaces

The WSDL interface document defines the message format for operations and messages defined by a particular portType. You can generate a monolithic WSDL document that contains all WSDL elements, or a separate WSDL interface document.

The WSDL interface document contains the following top level elements:

portType.

An abstract set of one or more operations supported by one or more ports. Each operation defines an in and out message as well as an optional fault message. A port can support the following types of operations:

One way. The port receives an input message and no replies are expected.
Request-response. The port receives an input message then sends a correlated output message.

Message.

An abstract, typed definition of the data being communicated between the service requestor and service provider. A message can have one or more typed parts, however there are interoperability implications on the number of parts depending on RPC or Document, as defined by WS-I.

Type.

A container for data type definitions using some type system such as XSD.

The following WSDL interface document is based on the StockQuoteService Sample.

<?xml version="1.0" encoding="UTF-8"?>
<definitions name="StockQuoteService" targetNamespace="http:///"
    xmlns="http://schemas.xmlsoap.org/wsdl/" xmlns:tns="http:///"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <message name="getQuoteRequest">
        <part name="symbol" type="xsd:string"/>
    </message>
    <message name="getQuoteResponse">
        <part name="result" type="xsd:float"/>
    </message>

  <!--   This service interface file defines a single port  
-->
  <!--   type StockQuoteServiceJavaPortType                 
-->
  <!--   with only one operation getQuote.                  
-->

    <portType name="StockQuoteService">

    <!--   The operation makes use of two abstract messages  
-->
    <!--   getQuoteRequest and getQuoteResponse.             
-->

        <operation name="getQuote" parameterOrder="symbol">
            <input message="tns:getQuoteRequest"
name="getQuoteRequest"/>
            <output message="tns:getQuoteResponse"
name="getQuoteResponse"/>
        </operation>
    </portType>
</definitions>