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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
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<title>org.eclipse.xsd.ecore.importer Read Me</title>
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</head>
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<body lang="EN-US">
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<h3>Introduction</h3>
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<p>This document describes how you can use scripts to generate code from XML Schema (xsd) files. The
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script can be either a regular shell script that invokes <a href="#headlessApplication">Eclipse headless
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applications</a> or an Ant script that invokes the <a href="#antTasks">task</a> provided by this plugin.</p>
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<h3><a name="overallComments">Overall Comments</a></h3>
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<ul>
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<li>If you didn't extract this plugin from CVS, the "examples" directory mentioned
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in this document is available in the XSD source plugin
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(org.eclipse.xsd.source_<i><version></i>/src/org.eclipse.xsd.ecore.importer_<i><version></i>).
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<br/><br/></li>
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<li>Before running your build scripts or the examples provided here, make sure you have the 2
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jar files required by this plugin ("xsd.ecore.importer.jar" and
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"xsd.ecore.importer.tasks.jar") and also the 2 jar files required by the <tt>org.eclipse.emf.ant</tt>
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plugin ("emf.ant.jar" and "emf.ant.tasks.jar"). If necessary, Eclipse
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can generate them for you. All you need to do is to run the Ant script created by PDE when you right click on the manifest file
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and select "PDE Tools>Create Ant Build File".
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<br/><br/></li>
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<li>Although the applications and task mentioned here must be executed by Eclipse (usually in headless mode), they can
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work on files located in any directory. In other words, your models, templates and other files don't need
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to be in the "plugins" directory nor in the workspace.
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<br/><br/></li>
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<li>In order to preserve the original state of this plugin's "examples" directory, you
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should copy it to a different location and run the Ant scripts from there.
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<br/><br/></li>
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<li>Starting a new JVM process and invoking Eclipse are expensive operations. Your build will
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perform better if you are able to group the steps that require Eclipse in a few scripts
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(one script would be ideal). This is probably a reason to use Ant instead of invoking the
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applications - you can generate code for multiple models using one single Ant script.
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<br/><br/></li>
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<li>The "examples/library" directory contains xsd file, and shell and Ant scripts
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to generate their code.
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</li>
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</ul>
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<h3><a name="headlessApplication">XSD and Generator Applications</a></h3>
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<p>The application provided by this plugin generates the ecore and genmodel files from models defined
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using XSD files.</p>
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<table border="1" cellpadding="2" cellspacing="0"
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summary="Lists the details about the XSD application.">
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<tr><td colspan="2">XSD application details</td></tr>
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<tr><td>ID</td><td><tt>org.eclipse.xsd.ecore.importer.XSD2GenModel</tt></td></tr>
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<tr><td>Class</td><td><tt>org.eclipse.xsd.ecore.importer.XSDImporterApplication</tt></td></tr>
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</table>
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<p>To generate the actual Java code you will need to use a second application, provided by
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the "org.eclipse.emf.codegen.ecore" plugin.</p>
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<table border="1" cellpadding="2" cellspacing="0"
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summary="Lists the details about the Generator application.">
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<tr><td colspan="2">Generator application details</td></tr>
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<tr><td>ID</td><td><tt>org.eclipse.emf.codegen.ecore.Generator</tt></td></tr>
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<tr><td>Class</td><td><tt>org.eclipse.emf.codegen.ecore.Generator</tt></td></tr>
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</table>
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<p>In order to run these or any other Eclipse application, you need to execute the following
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command (without the line breaks):</p>
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<p>
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eclipse
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<br/> -noSplash
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<br/> -data <i><full path to a workspace - ideally an empty directory></i>
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<br/> -application <i><application ID></i>
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<br/> <i><application arguments></i>
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</p>
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<p>In Windows you should execute <i>eclipsec</i> instead of <i>eclipse</i> in order to have
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access to the application's console output.</p>
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<p>The directory "examples/library/build" has shell scripts that generate the code for
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the model provided. If you have any questions after reading and experimenting with it, look at the
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applications's javadoc for more details. Also, check the application's class
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"getUsage()" method for the list of possible arguments.</p>
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<h3><a name="antTasks">XSD Ant Task</a></h3>
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<p>The XSD task details are:</p>
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<table border="1" cellpadding="2" cellspacing="0"
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summary="Lists the details about the XSD task.">
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<tr><td>Name</td><td><tt>emf.XSD2Java</tt></td></tr>
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<tr><td>Class</td><td><tt>org.eclipse.xsd.ecore.importer.taskdefs.XSDGeneratorTask</tt></td></tr>
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</table>
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<p>This is the usual command line to run an Ant script using a headless Eclipse instance (remove the line breaks):</p>
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<p>
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eclipse
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<br/> -noSplash
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<br/> -data <i><full path to a workspace - ideally an empty directory></i>
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<br/> -application org.eclipse.ant.core.antRunner
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<br/> -buildfile <i><full path to your script></i>
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</p>
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<p>In Windows you should execute <i>eclipsec</i> instead of <i>eclipse</i> in order to have
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access to the Ant build script console output.</p>
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<p>You can also use the Eclipse UI to execute an Ant script containing an EMF task. This can be
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done by right-clicking the script and selecting
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<i>Run As > Ant Build... > JRE > "Run in the same JRE as the workspace"</i>.</p>
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<p>The directory "examples/library/build" has an Ant script that generate the code for
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the model provided. The task's javadoc has lots of information you may find useful.</p>
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</body>
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</html> |