@Override
    public Object getData(final TextRange textRange) {
        final NodeInfo events = getEvents();
        if (events == null) {
            return null;
        }
        return new NodeInfoSerializer(events);
    }
@return value as a string, trimmed and, if ignoreCase is true, converted to lower case
stroom-pipeline/src/main/java/stroom/pipeline/filter/SAXEventRecorder.java