public void setPrefix(final String prefix) {
        if ((this.prefix != null && !this.prefix.equals(prefix)) || (prefix != null && !prefix.equals(this.prefix))) {
            this.prefix = prefix;

            // Update the qName.
            qName = createQName();
        }
    }
Fires a stored SAX event at the supplied content handler.

@param handler The content handler to fire the SAX event at.
@throws SAXException Necessary to maintain the SAX event contract.
@see Event#fire(org.xml.sax.ContentHandler)
stroom-pipeline/src/main/java/stroom/pipeline/xml/event/simple/EndElement.java