# Uses of Interface
org.apache.lucene.sandbox.facet.recorders.Reducer

Packages that use Reducer
Package
Description
org.apache.lucene.sandbox.facet.recorders
Sandbox faceting: classes that can record per ordinal data E.g.

## Uses of Reducer in org.apache.lucene.sandbox.facet.recorders

Fields in org.apache.lucene.sandbox.facet.recorders declared as Reducer
Modifier and Type
Field
Description
`static final Reducer`
Reducer.`MAX`
Reducer that returns MAX of two values.
`static final Reducer`
Reducer.`SUM`
Reducer that returns SUM of two values.
Constructors in org.apache.lucene.sandbox.facet.recorders with parameters of type Reducer
Modifier
Constructor
Description
``
`LongAggregationsFacetRecorder(LongValuesSource[] longValuesSources, Reducer[] reducers)`
Constructor.