test/resources/xml/om/basicupdate.xml

<?xml version="1.0" encoding="ISO-8859-1"?>

<xu:modifications xmlns:xu="http://www.xmldb.org/xupdate">

  <xu:append select="/foo/bar/cheese[1]">
    Goudse kaas
    <edam type="jong belegen">Rond</edam>
  </xu:append>

  <xu:remove select="/foo/bar/baz[2]"/>

  <xu:if test="/foo">
    <xu:insert-before select="/foo/bar/baz[2]">
      <cheese>More cheese!</cheese>
    </xu:insert-before>
  </xu:if>

  <xu:insert-before select="/foo/bar/baz[2]">
    <cheese>Even more cheese!</cheese>
  </xu:insert-before>

  <xu:if test="/bar">
    <xu:insert-before select="/foo/bar/baz[2]">
      <sausages>No sausages today</sausages>
    </xu:insert-before>
  </xu:if>

  <xu:variable
    xmlns:private="http://www.jaxen.org/private"
    name="private:twice">
    <cracker/>
    <!-- champagne -->
    <?oisters with a bit of lemon?>
  </xu:variable>

  <xu:variable name="twice" select="'Twice'"/>
  
  <xu:insert-after
    select="/foo/bar"
    xmlns:private="http://www.jaxen.org/private"
    >
    <xu:value-of select="$private:twice"/>
    <xu:value-of select="$private:twice"/>
    <xu:value-of select="$twice"/>
  </xu:insert-after>

</xu:modifications>