private final boolean ignoreCase;

    private final SynonymLoader synonymLoader;

    private long lastModified;

    private SynonymMap synonymMap = null;

    private FST.Arc<BytesRef> scratchArc;

    private FST<BytesRef> fst;

    private FST.BytesReader fstReader;

    private final BytesRef scratchBytes = new BytesRef();

    private final CharsRef scratchChars = new CharsRef();