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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<!--
Copyright (c) 2005 The Apache Software Foundation or its licensors, as applicable.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<html><head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta http-equiv="Content-Style-Type" content="text/css">
<title>Tuscany HelloWorld</title><!-- LINK rel="stylesheet" href="ait.css" type="text/css" --></head>
<body>
<h2>Tuscany Hello World Sample - JavaScript</h2>
<h3>Overview</h3>
<p>The Tuscany helloworld sample shows using the Tuscany SCA
runtime in a J2SE environment loading a JavaScript component that
implements the classic introductory hello world example. </p>
<h3>Setup</h3>The jars for a <a href="http://wiki.apache.org/ws/Tuscany/J2SESetup" target="_blank">J2SE setup</a> not requiring web
services are required including the sample's own jar <span style="font-weight: bold;">helloworldjs-SNAPSHOT.jar</span>.
<ol>
</ol>
<h3>Running</h3>
Using JDK 1.5 java command with the previous jars run the class org.apache.tuscany.samples.helloworldjs.HelloWorldClient
<br>
<h3>Results</h3>
<p>The sample when run should simply display to the standard
output:<br>
<code>jsHello World</code></p>
<h3>Code Overview</h3>
The source files are physically organized as shown below:
<pre>sca.module<br>org<br>+-apache<br> +-tuscany<br> +-samples<br> +-helloworldjs<br> HelloWorldClient.java<br> HelloWorldService.java<br> HelloWorldServiceComponentImpl.js<br> HelloWorldServiceComponentImpl.componentType<br><br><br></pre>
<p> </p>
<table style="text-align: left; width: 879px; height: 154px;" border="0" cellpadding="2" cellspacing="2">
<tbody>
<tr>
<td style="vertical-align: top;">sca.module</td>
<td>Defines the SCA module and component. Defines for the
HelloWorldServiceComponent component the Java class that
implements that component</td>
</tr>
<tr>
<td style="vertical-align: top;">HelloWorldService.java</td>
<td>Defines the Java interface implemented by the component.</td>
</tr>
<tr>
<td style="vertical-align: top;">HelloWorldServiceComponentImpl.js</td>
<td>JavaScript implementation of the SCA component.</td>
</tr>
<tr>
<td style="vertical-align: top;">HelloWorldServiceComponentImpl.componentType</td>
<td>The SCA componentType side file defining the service interface implemented by the JavaScript component.</td>
</tr>
<tr>
<td style="vertical-align: top;">HelloWorldClient.java</td>
<td>Creates a Tuscany runtime and starts it.
Obtains the module context which was defined by the
sca.module file. From the module context locates the
HelloWorldServiceComponent and then calls the getGreetings
method to invoke the component.</td>
</tr>
</tbody>
</table>
<br>
</body></html>
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