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| <html> |
| <head> |
| <meta http-equiv="Content-Language" content="en-us"> |
| <link rel="stylesheet" type="text/css" href="../stylesheets/style.css"> |
| <title>Extension Type</title> |
| </head> |
| |
| <body> |
| <h2><a name="fileset">Extension</a></h2> |
| <p>Utility type that represents either an available "Optional Package" |
| (formerly known as "Standard Extension") as described in the manifest |
| of a JAR file, or the requirement for such an optional package.</p> |
| <p>Note that this type |
| works with extensions as defined by the "Optional Package" specification. |
| For more information about optional packages, see the document |
| <em>Optional Package Versioning</em> in the documentation bundle for your |
| Java2 Standard Edition package, in file |
| <code>guide/extensions/versioning.html</code> or online at |
| <a href="http://java.sun.com/j2se/1.3/docs/guide/extensions/versioning.html"> |
| http://java.sun.com/j2se/1.3/docs/guide/extensions/versioning.html</a>.</p> |
| |
| <h3>Attributes</h3> |
| <p>The extension type supports the following attributes</a>: |
| </p> |
| |
| <table border="1" cellpadding="2" cellspacing="0"> |
| <tr> |
| <td valign="top"><b>Attribute</b></td> |
| <td valign="top"><b>Description</b></td> |
| <td align="center" valign="top"><b>Required</b></td> |
| </tr> |
| <tr> |
| <td valign="top">extensionName</td> |
| <td valign="top">The name of extension</td> |
| <td valign="top" align="center">yes</td> |
| </tr> |
| <tr> |
| <td valign="top">specificationVersion</td> |
| <td valign="top">The version of extension specification (Must be in |
| dewey decimal aka dotted decimal notation. 3.2.4)</td> |
| <td valign="top" align="center">no</td> |
| </tr> |
| <tr> |
| <td valign="top">specificationVendor</td> |
| <td valign="top">The specification vendor</td> |
| <td valign="top" align="center">no</td> |
| </tr> |
| <tr> |
| <td valign="top">implementationVersion</td> |
| <td valign="top">The version of extension implementation (Must be in |
| dewey decimal aka dotted decimal notation. 3.2.4)</td> |
| <td valign="top" align="center">no</td> |
| </tr> |
| <tr> |
| <td valign="top">implementationVendor</td> |
| <td valign="top">The implementation vendor</td> |
| <td valign="top" align="center">no</td> |
| </tr> |
| <tr> |
| <td valign="top">implementationVendorId</td> |
| <td valign="top">The implementation vendor ID</td> |
| <td valign="top" align="center">no</td> |
| </tr> |
| <tr> |
| <td valign="top">implementationURL</td> |
| <td valign="top">The url from which to retrieve extension.</td> |
| <td valign="top" align="center">no</td> |
| </tr> |
| </table> |
| |
| <h4>Examples</h4> |
| <blockquote><pre> |
| <extension id="e1" |
| extensionName="MyExtensions" |
| specificationVersion="1.0" |
| specificationVendor="Peter Donald" |
| implementationVendorID="vv" |
| implementationVendor="Apache" |
| implementationVersion="2.0" |
| implementationURL="http://somewhere.com/myExt.jar"/> |
| </pre></blockquote> |
| |
| <p>Fully specific extension object.</p> |
| |
| <blockquote><pre> |
| <extension id="e1" |
| extensionName="MyExtensions" |
| specificationVersion="1.0" |
| specificationVendor="Peter Donald"/> |
| </pre></blockquote> |
| |
| <p>Extension object that just species the specification details.</p> |
| |
| |
| |
| </body> |
| </html> |
| |
