Class Terms

Access to the terms in a specific field. See Fields.

@lucene.experimental

System.Object

Terms

public abstract class Terms : object

Name	Description
Terms()	Sole constructor. (For invocation by subclass constructors, typically implicit.)

Name	Description
EMPTY_ARRAY	Zero-length array of Terms.

Name	Description
Comparer	Return the IComparer<BytesRef> used to sort terms provided by the iterator. This method may return `null` if there are no terms. This method may be invoked many times; it's best to cache a single instance & reuse it.
Count	Returns the number of terms for this field, or -1 if this measure isn't stored by the codec. Note that, just like other term measures, this measure does not take deleted documents into account. NOTE: This was size() in Lucene.
DocCount	Returns the number of documents that have at least one term for this field, or -1 if this measure isn't stored by the codec. Note that, just like other term measures, this measure does not take deleted documents into account.
HasFreqs	Returns true if documents in this field store per-document term frequency (Freq).
HasOffsets	Returns `true` if documents in this field store offsets.
HasPayloads	Returns `true` if documents in this field store payloads.
HasPositions	Returns `true` if documents in this field store positions.
SumDocFreq	Returns the sum of DocFreq for all terms in this field, or -1 if this measure isn't stored by the codec. Note that, just like other term measures, this measure does not take deleted documents into account.
SumTotalTermFreq	Returns the sum of TotalTermFreq for all terms in this field, or -1 if this measure isn't stored by the codec (or if this fields omits term freq and positions). Note that, just like other term measures, this measure does not take deleted documents into account.

Name	Description
GetIterator(TermsEnum)	Returns an iterator that will step through all terms. This method will not return `null`. If you have a previous TermsEnum, for example from a different field, you can pass it for possible reuse if the implementation can do so.
Intersect(CompiledAutomaton, BytesRef)	Returns a TermsEnum that iterates over all terms that are accepted by the provided CompiledAutomaton. If the `startTerm` is provided then the returned enum will only accept terms `startTerm`, but you still must call Next() first to get to the first term. Note that the provided `startTerm` must be accepted by the automaton. NOTE: the returned TermsEnum cannot seek .

Number.IsNumber(Object)

Number.IsNumber(Object)

Contact Us