# Hierarchy For Package org.apache.datasketches.hive.frequencies

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - org.apache.hadoop.hive.ql.udf.generic.AbstractGenericUDAFResolver (implements org.apache.hadoop.hive.ql.udf.generic.GenericUDAFResolver2)
    - org.apache.datasketches.hive.frequencies.DataToItemsSketchUDAF<T>
      - org.apache.datasketches.hive.frequencies.DataToStringsSketchUDAF
    - org.apache.datasketches.hive.frequencies.UnionItemsSketchUDAF<T>
      - org.apache.datasketches.hive.frequencies.UnionStringsSketchUDAF
  - org.apache.hadoop.hive.ql.udf.generic.GenericUDAFEvaluator (implements java.io.Closeable)
    - org.apache.datasketches.hive.frequencies.DataToItemsSketchUDAF.DataToItemsSketchEvaluator<T>
    - org.apache.datasketches.hive.frequencies.UnionItemsSketchUDAF.UnionItemsSketchEvaluator<T>
  - org.apache.hadoop.hive.ql.udf.generic.GenericUDTF
    - org.apache.datasketches.hive.frequencies.GetFrequentItemsFromStringsSketchUDTF