Class TermRangeFilter

A Filter that restricts search results to a range of values in a given field.

This filter matches the documents looking for terms that fall into the supplied range according to . It is not intended for numerical ranges, use NumericRangeFilter<T> instead.

If you construct a large number of range filters with different ranges but on the same field, FieldCacheRangeFilter may have significantly better performance.

Inheritance
System.Object
Filter
MultiTermQueryWrapperFilter<TermRangeQuery>
TermRangeFilter
Inherited Members
Namespace:
Assembly: Lucene.Net.NetCore.dll
Syntax
public class TermRangeFilter : MultiTermQueryWrapperFilter<TermRangeQuery>

Constructors

Name Description
TermRangeFilter(String, String, String, Boolean, Boolean)

lowerTerm is null and includeLower is true (similar for upperTerm and includeUpper)
TermRangeFilter(String, String, String, Boolean, Boolean, Globalization.CompareInfo)

WARNING: Using this constructor and supplying a non-null value in the collator parameter will cause every single index Term in the Field referenced by lowerTerm and/or upperTerm to be examined. Depending on the number of index Terms in this Field, the operation could be very slow.

Properties

Name Description
Collator

Returns the collator used to determine range inclusion, if any.

Field

Returns the field name for this filter

IncludesLower

Returns true if the lower endpoint is inclusive

IncludesUpper

Returns true if the upper endpoint is inclusive

LowerTerm

Returns the lower value of this range filter

UpperTerm

Returns the upper value of this range filter

Methods

Name Description
Less(String, String)

Constructs a filter for field fieldName matching less than or equal to upperTerm.
More(String, String)

Constructs a filter for field fieldName matching greater than or equal to lowerTerm.