Class FieldComparer.TermOrdValComparer

Sorts by field's natural Term sort order, using ordinals. This is functionally equivalent to FieldComparer.TermValComparer, but it first resolves the string to their relative ordinal positions (using the index returned by GetTermsIndex(AtomicReader, String, Single)), and does most comparisons using the ordinals. For medium to large results, this comparer will be much faster than FieldComparer.TermValComparer. For very small result sets it may be slower.

Inheritance
System.Object
FieldComparer
FieldComparer<BytesRef>
FieldComparer.TermOrdValComparer
Inherited Members
Namespace: Lucene.Net.Search
Assembly: Lucene.Net.dll
Syntax
public class TermOrdValComparer : FieldComparer<BytesRef>

Constructors

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TermOrdValComparer(Int32, String)

Creates this, sorting missing values first.

Declaration
public TermOrdValComparer(int numHits, string field)
Parameters
Type Name Description
System.Int32 numHits
System.String field
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TermOrdValComparer(Int32, String, Boolean)

Creates this, with control over how missing values are sorted. Pass true for sortMissingLast to put missing values at the end.

Declaration
public TermOrdValComparer(int numHits, string field, bool sortMissingLast)
Parameters
Type Name Description
System.Int32 numHits
System.String field
System.Boolean sortMissingLast

Properties

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Item[Int32]

Declaration
public override IComparable this[int slot] { get; }
Parameters
Type Name Description
System.Int32 slot
Property Value
Type Description
IComparable
Overrides

Methods

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Compare(Int32, Int32)

Declaration
public override int Compare(int slot1, int slot2)
Parameters
Type Name Description
System.Int32 slot1
System.Int32 slot2
Returns
Type Description
System.Int32
Overrides
Lucene.Net.Search.FieldComparer<Lucene.Net.Util.BytesRef>.Compare(System.Int32, System.Int32)
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CompareBottom(Int32)

Declaration
public override int CompareBottom(int doc)
Parameters
Type Name Description
System.Int32 doc
Returns
Type Description
System.Int32
Overrides
Lucene.Net.Search.FieldComparer<Lucene.Net.Util.BytesRef>.CompareBottom(System.Int32)
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CompareTop(Int32)

Declaration
public override int CompareTop(int doc)
Parameters
Type Name Description
System.Int32 doc
Returns
Type Description
System.Int32
Overrides
Lucene.Net.Search.FieldComparer<Lucene.Net.Util.BytesRef>.CompareTop(System.Int32)
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CompareValues(BytesRef, BytesRef)

Declaration
public override int CompareValues(BytesRef val1, BytesRef val2)
Parameters
Type Name Description
BytesRef val1
BytesRef val2
Returns
Type Description
System.Int32
Overrides
Lucene.Net.Search.FieldComparer<Lucene.Net.Util.BytesRef>.CompareValues(Lucene.Net.Util.BytesRef, Lucene.Net.Util.BytesRef)
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Copy(Int32, Int32)

Declaration
public override void Copy(int slot, int doc)
Parameters
Type Name Description
System.Int32 slot
System.Int32 doc
Overrides
Lucene.Net.Search.FieldComparer<Lucene.Net.Util.BytesRef>.Copy(System.Int32, System.Int32)
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GetSortedDocValues(AtomicReaderContext, String)

Retrieves the SortedDocValues for the field in this segment

Declaration
protected virtual SortedDocValues GetSortedDocValues(AtomicReaderContext context, string field)
Parameters
Type Name Description
AtomicReaderContext context
System.String field
Returns
Type Description
SortedDocValues
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SetBottom(Int32)

Declaration
public override void SetBottom(int slot)
Parameters
Type Name Description
System.Int32 slot
Overrides
Lucene.Net.Search.FieldComparer<Lucene.Net.Util.BytesRef>.SetBottom(System.Int32)
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SetNextReader(AtomicReaderContext)

Declaration
public override FieldComparer SetNextReader(AtomicReaderContext context)
Parameters
Type Name Description
AtomicReaderContext context
Returns
Type Description
FieldComparer
Overrides
Lucene.Net.Search.FieldComparer<Lucene.Net.Util.BytesRef>.SetNextReader(Lucene.Net.Index.AtomicReaderContext)
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SetTopValue(Object)

Declaration
public override void SetTopValue(object value)
Parameters
Type Name Description
System.Object value
Overrides
Lucene.Net.Search.FieldComparer<Lucene.Net.Util.BytesRef>.SetTopValue(System.Object)