private String[] loadWords(final DocRef docRef) {
        if (wordListProvider == null) {
            return null;
        }
        return wordListProvider.getWords(docRef);
    }
Get an identifier for the passed docRef. term is only used for logging.
docRef may be the same as term.getDocRef() or a descendant of it, as in 'in folder'.

@return The name of the doc or its uuid depending on how the {@link TermHandler} is
configured.
stroom-db-util/src/main/java/stroom/db/util/TermHandler.java