Generating UUIDs with XSL and Java

Sample code showing how to generate unique IDs using XSL and Java. I am running Saxon 9 and Java 1.6.

First, set up the xmlns:uuid extension at the stylesheet level.

<xsl:stylesheet version="2.0"
        xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
        xmlns:uuid="java:java.util.UUID">

Later on, create a random unique ID using the uuid extension.

<xsl:variable name="uid" select="uuid:randomUUID()"/>

Output the value of the unique ID.

<xsl:value-of select="$uid"/>

I like to set up an attribute set to reuse.

    <xsl:attribute-set name="uid">
        <xsl:attribute name="id">
            <xsl:variable name="uid" select="util:randomUUID()"/>
            <xsl:value-of select="$uid"/>
        </xsl:attribute>
    </xsl:attribute-set>

And then reference it when creating the result.

<some-element xsl:use-attribute-sets="uid"/>