To make the XSLT Extension Function available for use in a map, create a Java class for the extension function and place the class in the class path for use during runtime.
For more information, go to http://xml.apache.org/xalan-j/extensions.html#ext-functions.
To make the extension function available for use in a map:
Create a Java class for the extension function
Compile the Java class and package it into a .jar file.
To make the class available for use in your maps during runtime, choose from the following:
Place the .jar file containing the class in {install directory}IOruntime-4_0\jar\ext\mapper\lib\
Place the .class file in {install directory}IOruntime-4_0\jar\ext\mapper\classes\
To make the class available for use in your maps during design time, unzip the file into:
{install directory}eclipse\plugins\com.nnsy.ebd.eai.editors.map.mapplugin_version#\extfuncs\
The next step in the process is editing the MAPexpression.xml file.