Calling Java Extension Functions.

XSLT style-sheets can call Java extension functions from within the style-sheet for processing. Consider a simple case of an XSLT style-sheet calling a Java extension function to convert the argument string literal to upper case.

• The class 'string.converter.SimpleConverter.java' that does the conversion to upper case is packaged in the Jar file 'StringConverer.jar'.
• In order to access this Java extension function, the user can add this Jar file to the XSLT project as shown.

• The code in the style-sheet to call the Java extension function is as shown.

• The XSLT project is added as part of a composite application project and deployed to the Glassfish application server.
• At runtime the XSLT service engine will load the files in the Jar as part of its execution thread context class-loader and will successfully execute the extension function call.

For more detail on what you can do with this feature, see the Xalan-Java Extensions page. The syntax in this example is described in the section on abbreviated syntax for Java extensions. You may also be interested in the type mappings between Java and XSLT.

This page (revision-9) was last changed on 13-Feb-09 12:31 PM, -0800 by BobPollack.
This page was created on 09-Apr-08 17:59 PM, -0700 by Philip Varghese.

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