@Override
    public void endElement(final String uri, final String localName, final String qName) throws SAXException {
        handler.endElement(uri, localName, qName);
    }
Receive notification of the end of an element.
<p>
<p>
The SAX parser will invoke this method at the end of every element in the
XML document; there will be a corresponding {@link #startElement
startElement} event for every endElement event (even when the element is
empty).
</p>
<p>
<p>
For information on the names, see startElement.
</p>

@param uri       the Namespace URI, or the empty string if the element has no
                 Namespace URI or if Namespace processing is not being
                 performed
@param localName the local name (without prefix), or the empty string if
                 Namespace processing is not being performed
@param qName     the qualified XML name (with prefix), or the empty string if
                 qualified names are not available
@throws org.xml.sax.SAXException any SAX exception, possibly wrapping another exception
stroom-pipeline/src/main/java/stroom/pipeline/filter/ContentHandlerAdaptor.java