public virtual void TestNoOrds()
{
Directory dir = NewDirectory();
RandomIndexWriter iw = new RandomIndexWriter(Random, dir);
Document doc = new Document();
FieldType ft = new FieldType(TextField.TYPE_NOT_STORED);
ft.StoreTermVectors = true;
doc.Add(new Field("foo", "this is a test", ft));
iw.AddDocument(doc);
AtomicReader ir = GetOnlySegmentReader(iw.GetReader());
Terms terms = ir.GetTermVector(0, "foo");
Assert.IsNotNull(terms);
TermsEnum termsEnum = terms.GetEnumerator();
Assert.AreEqual(TermsEnum.SeekStatus.FOUND, termsEnum.SeekCeil(new BytesRef("this")));
try
{
var _ = termsEnum.Ord;
Assert.Fail();
}
catch (Exception expected) when (expected.IsUnsupportedOperationException())
{
// expected exception
}
try
{
termsEnum.SeekExact(0);
Assert.Fail();
}
catch (Exception expected) when (expected.IsUnsupportedOperationException())
{
// expected exception
}
ir.Dispose();
iw.Dispose();
dir.Dispose();
}
public override TermsEnum GetTermsEnum(Terms terms, AttributeSource atts)
{
return new SimplePrefixTermsEnum(this, terms.Iterator(null), Prefix);
}
public override TermsEnum GetTermsEnum(Terms terms, AttributeSource atts)
{
return new SimpleAutomatonTermsEnum(this, terms.Iterator(null));
}
public TermsEnum TermsEnum(Terms terms)
{
return terms.Iterator(null);
}
/// <summary>
/// Returns the <seealso cref="MultiTermQuery"/>s <seealso cref="TermsEnum"/> </summary>
/// <seealso cref= MultiTermQuery#getTermsEnum(Terms, AttributeSource) </seealso>
protected internal virtual TermsEnum GetTermsEnum(MultiTermQuery query, Terms terms, AttributeSource atts)
{
return(query.GetTermsEnum(terms, atts)); // allow RewriteMethod subclasses to pull a TermsEnum from the MTQ
}
/// <summary>
/// Convenience method, if no attributes are needed:
/// this simply passes empty attributes and is equal to:
/// <code>getTermsEnum(terms, new AttributeSource())</code>
/// </summary>
public TermsEnum GetTermsEnum(Terms terms)
{
return(GetTermsEnum(terms, new AttributeSource()));
}
/// <summary> /// Construct the enumeration to be used, expanding the /// pattern term. this method should only be called if /// the field exists (ie, implementations can assume the /// field does exist). this method should not return null /// (should instead return <seealso cref="TermsEnum#EMPTY"/> if no /// terms match). The TermsEnum must already be /// positioned to the first matching term. /// The given <seealso cref="AttributeSource"/> is passed by the <seealso cref="RewriteMethod"/> to /// provide attributes, the rewrite method uses to inform about e.g. maximum competitive boosts. /// this is currently only used by <seealso cref="TopTermsRewrite"/> /// </summary> public abstract TermsEnum GetTermsEnum(Terms terms, AttributeSource atts);
public TermsEnum TermsEnum(Terms terms)
{
return NumericUtils.FilterPrefixCodedLongs(terms.Iterator(null));
}
protected override TermsEnum GetTermsEnum(Terms terms, AttributeSource atts)
{
return new SimpleAutomatonTermsEnum(this, terms.GetEnumerator());
}
public override TermsEnum GetTermsEnum(Terms terms, AttributeSource atts)
{
return new TermRangeTermsEnumAnonymousInnerClassHelper(this, terms.Iterator(null), new BytesRef("2"), new BytesRef("7"));
}
public override TermsEnum GetTermsEnum(Terms terms, AttributeSource atts)
{
if (MaxEdits_Renamed == 0 || PrefixLength_Renamed >= _term.Text().Length) // can only match if it's exact
{
return new SingleTermsEnum(terms.Iterator(null), _term.Bytes);
}
return new FuzzyTermsEnum(terms, atts, Term, MaxEdits_Renamed, PrefixLength_Renamed, Transpositions_Renamed);
}
public override TermsEnum GetTermsEnum(Terms terms, AttributeSource atts)
{
TermsEnum tenum = terms.Iterator(null);
if (_prefix.Bytes.Length == 0)
{
// no prefix -- match all terms for this field:
return tenum;
}
return new PrefixTermsEnum(tenum, _prefix.Bytes);
}
