LongValuesSource

Base class for producing LongValues

To obtain a LongValues object for a leaf reader, clients should call .rewrite against the top-level searcher, and then .getValues.

LongValuesSource objects for long and int-valued NumericDocValues fields can be obtained by calling .fromLongField and .fromIntField.

To obtain a LongValuesSource from a float or double-valued NumericDocValues field, use or DoubleValuesSource.fromDoubleField and then call DoubleValuesSource.toLongValuesSource.

Constructors

constructor()

A ConstantLongValuesSource that always returns a constant value

abstract operator override fun equals(obj: Any?): Boolean

Create a sort field based on the value of this producer

Returns a LongValues instance for the passed-in LeafReaderContext and scores

abstract override fun hashCode(): Int

Return true if document scores are needed to calculate values

Return a LongValuesSource specialised for the given IndexSearcher

Convert to a DoubleValuesSource by casting long values to doubles

abstract override fun toString(): String