| public GetTermsEnum ( Terms terms, AttributeSource atts ) : TermsEnum | ||
| terms | Terms | |
| atts | AttributeSource | |
| return | TermsEnum | |
public virtual void TestRewriteSingleTerm()
{
AutomatonQuery aq = new AutomatonQuery(NewTerm("bogus"), BasicAutomata.MakeString("piece"));
Terms terms = MultiFields.GetTerms(Searcher.IndexReader, FN);
Assert.IsTrue(aq.GetTermsEnum(terms) is SingleTermsEnum);
Assert.AreEqual(1, AutomatonQueryNrHits(aq));
}
public virtual void TestEmptyOptimization()
{
AutomatonQuery aq = new AutomatonQuery(NewTerm("bogus"), BasicAutomata.MakeEmpty());
// not yet available: Assert.IsTrue(aq.getEnum(searcher.getIndexReader())
// instanceof EmptyTermEnum);
Terms terms = MultiFields.GetTerms(Searcher.IndexReader, FN);
Assert.AreSame(TermsEnum.EMPTY, aq.GetTermsEnum(terms));
Assert.AreEqual(0, AutomatonQueryNrHits(aq));
}
public virtual void TestRewritePrefix()
{
Automaton pfx = BasicAutomata.MakeString("do");
pfx.ExpandSingleton(); // expand singleton representation for testing
Automaton prefixAutomaton = BasicOperations.Concatenate(pfx, BasicAutomata.MakeAnyString());
AutomatonQuery aq = new AutomatonQuery(NewTerm("bogus"), prefixAutomaton);
Terms terms = MultiFields.GetTerms(Searcher.IndexReader, FN);
Assert.IsTrue(aq.GetTermsEnum(terms) is PrefixTermsEnum);
Assert.AreEqual(3, AutomatonQueryNrHits(aq));
}
public virtual void TestRewriteSingleTerm()
{
AutomatonQuery aq = new AutomatonQuery(NewTerm("bogus"), BasicAutomata.MakeString("piece"));
Terms terms = MultiFields.GetTerms(Searcher.IndexReader, FN);
Assert.IsTrue(aq.GetTermsEnum(terms) is SingleTermsEnum);
Assert.AreEqual(1, AutomatonQueryNrHits(aq));
}
public virtual void TestRewritePrefix()
{
Automaton pfx = BasicAutomata.MakeString("do");
pfx.ExpandSingleton(); // expand singleton representation for testing
Automaton prefixAutomaton = BasicOperations.Concatenate(pfx, BasicAutomata.MakeAnyString());
AutomatonQuery aq = new AutomatonQuery(NewTerm("bogus"), prefixAutomaton);
Terms terms = MultiFields.GetTerms(Searcher.IndexReader, FN);
var en = aq.GetTermsEnum(terms);
Assert.IsTrue(en is PrefixTermsEnum, "Expected type PrefixTermEnum but was {0}", en.GetType().Name);
Assert.AreEqual(3, AutomatonQueryNrHits(aq));
}
public virtual void TestEmptyOptimization()
{
AutomatonQuery aq = new AutomatonQuery(NewTerm("bogus"), BasicAutomata.MakeEmpty());
// not yet available: Assert.IsTrue(aq.getEnum(searcher.getIndexReader())
// instanceof EmptyTermEnum);
Terms terms = MultiFields.GetTerms(Searcher.IndexReader, FN);
Assert.AreSame(TermsEnum.EMPTY, aq.GetTermsEnum(terms));
Assert.AreEqual(0, AutomatonQueryNrHits(aq));
}
