brickhouse.udf.sketch
Class SketchSetUDAF

java.lang.Object
  org.apache.hadoop.hive.ql.udf.generic.AbstractGenericUDAFResolver
      brickhouse.udf.sketch.SketchSetUDAF

All Implemented Interfaces:

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

public class SketchSetUDAF
extends org.apache.hadoop.hive.ql.udf.generic.AbstractGenericUDAFResolver

Construct a sketch set by aggregating over a a set of ID's

Nested Class Summary

static class

SketchSetUDAF.SketchSetUDAFEvaluator

Field Summary

static int

DEFAULT_SKETCH_SET_SIZE

Constructor Summary

SketchSetUDAF()

Method Summary

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

getEvaluator(org.apache.hadoop.hive.serde2.typeinfo.TypeInfo[] parameters)

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

Field Detail

DEFAULT_SKETCH_SET_SIZE

public static int DEFAULT_SKETCH_SET_SIZE

Constructor Detail

SketchSetUDAF

public SketchSetUDAF()

Method Detail

getEvaluator

public org.apache.hadoop.hive.ql.udf.generic.GenericUDAFEvaluator getEvaluator(org.apache.hadoop.hive.serde2.typeinfo.TypeInfo[] parameters)
                                                                        throws org.apache.hadoop.hive.ql.parse.SemanticException

Specified by:

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

Overrides:

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

Throws:

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