Java Extension Element
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:xalan="http://xml.apache.org/xslt"
xmlns:MyExt="xalan://com.AcmeX.MyExtensionElement">
extension-element-prefixes="MyExt">
<xalan:component prefix="MyExt" elements="superExtension">
<xalan:script lang="javasclass"
src=" xalan:// com.AcmeX.MyExtensionElement"/>
</xalan:component>
<xsl:template match="*">
<myExt:superExtension attr1="val1" attr2="val2">
<!-- ... -->
<myExt:superExtension>
</xsl:template>
</xsl:stylesheet>
The implementation must be via a Java class and method with the following signature:
public class com.AcmeX.MyExtensionElement { public SomeType superExtension( org.apache.xalan.extensions.XSLProcessorContext ctx, org.apache.xalan.templates.ElemExtensionCall extensionElement) { //... } }
where SomeType
designates the return type,
ctx
is a instance of the processing context, and
extensionElement
is the node corresponding to the
stylesheet’s extension element. In the method
signature, you may also use the indicated types’
superclasses. The com.AcmeX.MyExtensionElement
base class can be anything you like, including
none
, as shown here.
Whatever the function returns is put into the result tree, so use
void
if you do not want this effect. See Recipe 12.15 for further details on the
XSLProcessorContext
and
ElemExtensionCall
classes.
Get XSLT Cookbook now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.