org.apache.datasketches.hive.frequencies

Class DataToItemsSketchUDAF<T>

java.lang.Object

org.apache.hadoop.hive.ql.udf.generic.AbstractGenericUDAFResolver

org.apache.datasketches.hive.frequencies.DataToItemsSketchUDAF<T>

Type Parameters:

T - type of item

All Implemented Interfaces:

org.apache.hadoop.hive.ql.udf.generic.GenericUDAFResolver, org.apache.hadoop.hive.ql.udf.generic.GenericUDAFResolver2

Direct Known Subclasses:

DataToStringsSketchUDAF

public abstract class DataToItemsSketchUDAF<T>
extends org.apache.hadoop.hive.ql.udf.generic.AbstractGenericUDAFResolver

This is a generic implementation to be specialized in subclasses

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DataToItemsSketchUDAF.DataToItemsSketchEvaluator<T>

Constructor Summary

Constructors

Constructor and Description
DataToItemsSketchUDAF()

Method Summary

Modifier and Type	Method and Description
abstract org.apache.hadoop.hive.ql.udf.generic.GenericUDAFEvaluator	createEvaluator()
org.apache.hadoop.hive.ql.udf.generic.GenericUDAFEvaluator	getEvaluator(org.apache.hadoop.hive.ql.udf.generic.GenericUDAFParameterInfo info)

Methods inherited from class org.apache.hadoop.hive.ql.udf.generic.AbstractGenericUDAFResolver

getEvaluator

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DataToItemsSketchUDAF

public DataToItemsSketchUDAF()

Method Detail

getEvaluator

public org.apache.hadoop.hive.ql.udf.generic.GenericUDAFEvaluator getEvaluator(org.apache.hadoop.hive.ql.udf.generic.GenericUDAFParameterInfo info)
                                                                        throws org.apache.hadoop.hive.ql.parse.SemanticException

Specified by:

getEvaluator in interface org.apache.hadoop.hive.ql.udf.generic.GenericUDAFResolver2

Overrides:

getEvaluator in class org.apache.hadoop.hive.ql.udf.generic.AbstractGenericUDAFResolver

Throws:

org.apache.hadoop.hive.ql.parse.SemanticException

createEvaluator

public abstract org.apache.hadoop.hive.ql.udf.generic.GenericUDAFEvaluator createEvaluator()