# Package org.apache.lucene.queries.function.docvalues

package org.apache.lucene.queries.function.docvalues
FunctionValues for different data types.

- Related Packages
  Package
  Description
  org.apache.lucene.queries.function
  Queries that compute score based upon a function.
  org.apache.lucene.queries.function.valuesource
  A variety of functions to use with FunctionQuery.
- Class
  Description
  BoolDocValues
  Abstract `FunctionValues` implementation which supports retrieving boolean values.
  DocTermsIndexDocValues
  Serves as base class for FunctionValues based on DocTermsIndex.
  DocTermsIndexDocValues.DocTermsIndexException
  Custom Exception to be thrown when the DocTermsIndex for a field cannot be generated
  DoubleDocValues
  Abstract `FunctionValues` implementation which supports retrieving double values.
  FloatDocValues
  Abstract `FunctionValues` implementation which supports retrieving float values.
  IntDocValues
  Abstract `FunctionValues` implementation which supports retrieving int values.
  LongDocValues
  Abstract `FunctionValues` implementation which supports retrieving long values.
  StrDocValues
  Abstract `FunctionValues` implementation which supports retrieving String values.