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| <title>Programmatically Writing a Jar file</title> |
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| <h2>Programmatically Writing a Jar file</h2> |
| <p> The <a href="../reference/api/org/eclipse/jdt/ui/jarpackager/package-summary.html"> |
| <b> |
| org.eclipse.ui.jarpackager</b></a> package provides utility classes to programmatically |
| export files to a Jar file. Below is a code snippet that outlines the use of |
| the <a href="../reference/api/org/eclipse/jdt/ui/jarpackager/JarPackageData.html"><b>JarPackageData</b></a> |
| class:</p> |
| <pre><font color="#4444cc"> void createJar(IType mainType, IFile[] filestoExport) { |
| Shell parentShell= ...; |
| JarPackageData description= new JarPackageData(); |
| IPath location= new Path("C:/tmp/myjar.jar"); |
| description.setJarLocation(location); |
| description.setSaveManifest(true); |
| description.setManifestMainClass(mainType); |
| description.setElements(filestoExport); |
| IJarExportRunnable runnable= description.createJarExportRunnable(parentShell); |
| try { |
| new ProgressMonitorDialog(parentShell).run(true,true, runnable); |
| } catch (InvocationTargetException e) { |
| // An error has occurred while executing the operation |
| } catch (InterruptedException e) { |
| // operation has been canceled. |
| } |
| }</font></pre> |
| <p> Additional API is provided to create a plug-in specific subclass of <a href="../reference/api/org/eclipse/jdt/ui/jarpackager/JarPackageData.html"><b>JarPackageData</b></a>. |
| This allows other plug-ins to implement their own Jar export/import wizards |
| and to save the content of the <a href="../reference/api/org/eclipse/jdt/ui/jarpackager/JarPackageData.html"><b>JarPackageData</b></a> |
| object to a corresponding Jar |
| description file.</p> |
| <p> Once the JAR is described by a <a href="../reference/api/org/eclipse/jdt/ui/jarpackager/JarPackageData.html"><b>JarPackageData</b></a>, |
| it can be programmatically written using a <a href="../reference/api/org/eclipse/jdt/ui/jarpackager/JarWriter3.html"><b>JarWriter3</b></a>.</p> |
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