70 lines
3.8 KiB
HTML
70 lines
3.8 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<META http-equiv="Content-Type" content="text/html; charset=utf-8">
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<LINK rel="stylesheet" type="text/css" href="../../../rzahg/ic.css">
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<title>Use the Java provider</title>
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</head>
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<BODY>
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<!-- Java sync-link -->
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<SCRIPT LANGUAGE="Javascript" SRC="../../../rzahg/synch.js" TYPE="text/javascript"></SCRIPT>
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<h5><A NAME="wswsifprovjv">Use the Java provider</A></h5>
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<p>The WSIF Java Provider allows WSIF to invoke Java classes and JavaBeans. This means that in a thin-client environment, such as a Java virtual machine, you can define shortcuts to local Java code.</p>
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<p>The WSIF Java Provider is not intended to be used in a J2EE environment. There is a difference between a client that uses the WSIF Java Provider to invoke a Java component and one that implements a Web service as a Java component on the server side.</p>
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<p>The Java binding exploits the format binding for type mapping. The format binding allows WSDL to define the mapping between XML Schema types and Java types.</p>
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<p>The Java provider requires the targeted Java classes to be in the class path of the client. The Java method is invoked synchronously, in-process, in-thread, with the current thread and ORB contexts.</p>
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<p>The Java provider is not transactional. </p>
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<p><strong>The Java provider - writing the WSDL extension</strong></p>
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<p>The Java provider allows the invocation of a method on a local Java object. To use the Java provider, you require this binding specified in the WSDL:</p>
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<p><strong>Note:</strong> For legal information about this code example, see the <a href="../program/codex.htm" target="_">Code example disclaimer</a>.</p>
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<pre><!-- Java binding -->
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<binding .... >
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<java:binding />
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<format:typeMapping style="Java" encoding="Java"/><em>?</em>
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<format:typeMap name="qname" formatType="nmtoken"/><em>*</em>
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</format:typeMapping>
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<operation><em>*</em>
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<java:operation
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methodName="nmtoken"
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parameterOrder="nmtoken"
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returnPart="nmtoken"<em>?</em>
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methodType="instance|constructor" />
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<input name="nmtoken"<em>?</em> /><em>?</em>
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<output name="nmtoken"<em>?</em> /><em>?</em>
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<fault name="nmtoken"<em>?</em> /><em>?</em>
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</operation>
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</binding></pre>
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<p>where <em>?</em> means optional and <em>*</em> means 0 or more.</p>
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<p><strong>Notes:</strong> </p>
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<ul>
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<li>The format:typeMap name attribute is a qualified name of a simple or complex type used by one of the Java operations.</li>
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<li>The format:typeMap formatType attribute is the fully qualified Class name for the Java Class that the element specified by name maps to.</li>
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<li>The java:operation methodName attribute is the name of the method on the Java object that is called by the operation.</li>
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<li>The java:operation parameterOrder attribute contains a whitespace-separated list of part names that define the order in which they are passed to the Java Object's method.</li>
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<li>The java:operation methodType attribute must be set to either instance or constructor. The value specifies whether the method being invoked on the object is an instance method or a constructor for the object. </li></ul>
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<pre><service ... >
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<port>*
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<java:address
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className="nmtoken"/>
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</port>
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</service></pre>
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<p><strong>Note:</strong> The java:address className attribute specifies the fully qualified class name of the object containing the method to invoke.</p>
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</body>
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</html>
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