docs/org.eclipse.jst.ws.doc.user/concepts/cwsdl.html - webservices/webtools.webservices - Git at Google

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 <title>Web Services Description Language (WSDL)</title>
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 <h1 class="topictitle1">Web Services Description Language (WSDL)</h1>
 <div><p>Web Services Description Language (WSDL) is a standard specification
 for describing networked, XML-based services. It provides a simple way for
 service providers to describe the basic format of requests to their systems
 regardless of the underlying run-time implementation.</p>
 <p>WSDL defines an XML format for describing network services as a set of
  <var class="varname">endpoints</var> that operate on messages that contain either
 document-oriented or procedure-oriented information. The operations and messages
 are first described abstractly and then bound to a concrete network protocol
 and message format in order to define an endpoint. Related concrete endpoints
 are combined into abstract endpoints (services). WSDL is extensible to allow
 description of endpoints and their messages, regardless of which message formats
 or network protocols are used to communicate. This means that interfaces are
 defined abstractly using XML schema and then bound to concrete representations
 that are appropriate for the protocol.</p>
 <p>WSDL allows a service provider to specify the following characteristics
 of a Web service:</p>
 <ul><li>The name of the Web service and addressing information</li>
 <li>The protocol and encoding style to be used when accessing the public operations
 of the Web service</li>
 <li>The type information such as operations, parameters, and data types comprising
 the interface of the Web service</li>
 </ul>
 <p>WSDL documents allow developers to expose their applications as network-accessible
 services on the Internet. Through UDDI and WSIL, other applications can discover
 WSDL documents and bind with them to execute transactions or perform other
 business processes.</p>
 <p>Rational<sup>®</sup> Developer
 products support and encourages the development and use of WS-I compliant
 WSDL. Using Rational Developer
 products a business service provider can deploy Java™ beans and enterprise beans, DADX-described
 queries and remote procedures, or existing URLs as a Web service and generate
 a WSDL document that describes the service. They can also generate Java and
 enterprise bean skeletons from an existing WSDL file. A business service client
 can generate a Java proxy from a WSDL document, thereby providing an
 easy-to-use Java interface to the Web service. The Java interface
 hides the network communications details from the client enabling the business
 service provider to focus on business and process portions of the application.</p>
 <p>In addition to providing tools to create Web services, Rational Developer
 products provide a WSDL editor that allows you to create WSDL files using
 a graphical interface, a WSDL validator that ensures that your WSDL file is
 semantically correct and optionally checks for WS-I compliance, and the Web
 Services Explorer which allows you to dynamically test Web services without
 requiring you to generate a proxy.</p>
 <p>Rational Developer
 products support WSDL 1.1. For more information on the WSDL specification,
 refer to  <a href="http://www.w3.org/TR/wsdl" target="_blank">www.w3.org/TR/wsdl</a></p>
 </div>
 <div>
 <ul class="ullinks">
 <li class="ulchildlink"><strong><a href="../ref/rwsdl.html">Web Services Description Language (WSDL) reference</a></strong><br />
 A WSDL document defines services as collections of network endpoints,
 or ports. In WSDL, the abstract definition of endpoints and messages is separated
 from their concrete network deployment or data format bindings. This allows
 the reuse of abstract definitions: messages, which are abstract descriptions
 of the data being exchanged, and port types which are abstract collections
 of operations. </li>
 </ul>

 <div class="familylinks">
 <div class="parentlink"><strong>Parent topic:</strong> <a href="../concepts/cws.html" title="A Web service is a set of related application functions that can be programmatically invoked over the Internet. Businesses can dynamically mix and match Web services to perform complex transactions with minimal programming. Web services allow buyers and sellers all over the world to discover each other, connect dynamically, and execute transactions in real time with minimal human interaction.">Web services overview</a></div>
 </div>

 <div class="linklist"><strong>Related Concepts</strong><br />

 <div><a href="cws.html" title="A Web service is a set of related application functions that can be programmatically invoked over the Internet. Businesses can dynamically mix and match Web services to perform complex transactions with minimal programming. Web services allow buyers and sellers all over the world to discover each other, connect dynamically, and execute transactions in real time with minimal human interaction.">Web services overview</a></div>
 <div><a href="cwsinwsa.html">Tools for Web services development</a></div></div>

 <div class="linklist"><strong>Related Tasks</strong><br />

 <div><a href="../tasks/toverws.html"> Developing Web
 services</a></div></div>
 </div>
 </body>
 </html>
	<?xml version="1.0" encoding="UTF-8"?>
	<!DOCTYPE html
	PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
	<html lang="en-us" xml:lang="en-us">
	<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<!-- /*******************************************************************************
	* Copyright (c) 2000, 2005 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/ -->
	<link rel="stylesheet" type="text/css" href="../../org.eclipse.wst.doc.user/common.css" />
	<title>Web Services Description Language (WSDL)</title>
	</head>
	<body id="cwsdl"><a name="cwsdl"><!-- --></a>

	<h1 class="topictitle1">Web Services Description Language (WSDL)</h1>
	<div><p>Web Services Description Language (WSDL) is a standard specification
	for describing networked, XML-based services. It provides a simple way for
	service providers to describe the basic format of requests to their systems
	regardless of the underlying run-time implementation.</p>
	<p>WSDL defines an XML format for describing network services as a set of
	<var class="varname">endpoints</var> that operate on messages that contain either
	document-oriented or procedure-oriented information. The operations and messages
	are first described abstractly and then bound to a concrete network protocol
	and message format in order to define an endpoint. Related concrete endpoints
	are combined into abstract endpoints (services). WSDL is extensible to allow
	description of endpoints and their messages, regardless of which message formats
	or network protocols are used to communicate. This means that interfaces are
	defined abstractly using XML schema and then bound to concrete representations
	that are appropriate for the protocol.</p>
	<p>WSDL allows a service provider to specify the following characteristics
	of a Web service:</p>
	<ul><li>The name of the Web service and addressing information</li>
	<li>The protocol and encoding style to be used when accessing the public operations
	of the Web service</li>
	<li>The type information such as operations, parameters, and data types comprising
	the interface of the Web service</li>
	</ul>
	<p>WSDL documents allow developers to expose their applications as network-accessible
	services on the Internet. Through UDDI and WSIL, other applications can discover
	WSDL documents and bind with them to execute transactions or perform other
	business processes.</p>
	<p>Rational<sup>®</sup> Developer
	products support and encourages the development and use of WS-I compliant
	WSDL. Using Rational Developer
	products a business service provider can deploy Java™ beans and enterprise beans, DADX-described
	queries and remote procedures, or existing URLs as a Web service and generate
	a WSDL document that describes the service. They can also generate Java and
	enterprise bean skeletons from an existing WSDL file. A business service client
	can generate a Java proxy from a WSDL document, thereby providing an
	easy-to-use Java interface to the Web service. The Java interface
	hides the network communications details from the client enabling the business
	service provider to focus on business and process portions of the application.</p>
	<p>In addition to providing tools to create Web services, Rational Developer
	products provide a WSDL editor that allows you to create WSDL files using
	a graphical interface, a WSDL validator that ensures that your WSDL file is
	semantically correct and optionally checks for WS-I compliance, and the Web
	Services Explorer which allows you to dynamically test Web services without
	requiring you to generate a proxy.</p>
	<p>Rational Developer
	products support WSDL 1.1. For more information on the WSDL specification,
	refer to <a href="http://www.w3.org/TR/wsdl" target="_blank">www.w3.org/TR/wsdl</a></p>
	</div>
	<div>
	<ul class="ullinks">
	<li class="ulchildlink"><strong><a href="../ref/rwsdl.html">Web Services Description Language (WSDL) reference</a></strong><br />
	A WSDL document defines services as collections of network endpoints,
	or ports. In WSDL, the abstract definition of endpoints and messages is separated
	from their concrete network deployment or data format bindings. This allows
	the reuse of abstract definitions: messages, which are abstract descriptions
	of the data being exchanged, and port types which are abstract collections
	of operations. </li>
	</ul>

	<div class="familylinks">
	<div class="parentlink"><strong>Parent topic:</strong> <a href="../concepts/cws.html" title="A Web service is a set of related application functions that can be programmatically invoked over the Internet. Businesses can dynamically mix and match Web services to perform complex transactions with minimal programming. Web services allow buyers and sellers all over the world to discover each other, connect dynamically, and execute transactions in real time with minimal human interaction.">Web services overview</a></div>
	</div>

	<div class="linklist"><strong>Related Concepts</strong><br />

	<div><a href="cws.html" title="A Web service is a set of related application functions that can be programmatically invoked over the Internet. Businesses can dynamically mix and match Web services to perform complex transactions with minimal programming. Web services allow buyers and sellers all over the world to discover each other, connect dynamically, and execute transactions in real time with minimal human interaction.">Web services overview</a></div>
	<div><a href="cwsinwsa.html">Tools for Web services development</a></div></div>

	<div class="linklist"><strong>Related Tasks</strong><br />

	<div><a href="../tasks/toverws.html"> Developing Web
	services</a></div></div>
	</div>
	</body>
	</html>