/// <summary>
/// Return an automata-based enum for matching up to <paramref name="editDistance"/> from
/// <paramref name="lastTerm"/>, if possible
/// </summary>
protected virtual TermsEnum GetAutomatonEnum(int editDistance, BytesRef lastTerm)
{
IList <CompiledAutomaton> runAutomata = InitAutomata(editDistance);
if (editDistance < runAutomata.Count)
{
//if (BlockTreeTermsWriter.DEBUG) System.out.println("FuzzyTE.getAEnum: ed=" + editDistance + " lastTerm=" + (lastTerm==null ? "null" : lastTerm.utf8ToString()));
CompiledAutomaton compiled = runAutomata[editDistance];
return(new AutomatonFuzzyTermsEnum(this, m_terms.Intersect(compiled, lastTerm == null ? null : compiled.Floor(lastTerm, new BytesRef())), runAutomata.SubList(0, editDistance + 1).ToArray(/*new CompiledAutomaton[editDistance + 1]*/)));
}
else
{
return(null);
}
}
