org.apache.druid.query.topn

Class DimValHolder.Builder

java.lang.Object

org.apache.druid.query.topn.DimValHolder.Builder

Enclosing class:

DimValHolder

public static class DimValHolder.Builder
extends Object

Constructor Summary

Constructors

Constructor and Description
Builder()

Method Summary

Modifier and Type	Method and Description
DimValHolder	build()
DimValHolder.Builder	withDimValIndex(Object dimValIndex)
DimValHolder.Builder	withDimValue(Comparable dimValue, ValueType type) This method is called by TopNResultBuilder.addEntry(java.lang.Comparable, java.lang.Object, java.lang.Object[]) to store query results.
DimValHolder.Builder	withMetricValues(Map<String,Object> metricValues)
DimValHolder.Builder	withTopNMetricVal(Object topNMetricVal)

Methods inherited from class java.lang.Object

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

Constructor Detail

Builder

public Builder()

Method Detail

withTopNMetricVal

public DimValHolder.Builder withTopNMetricVal(Object topNMetricVal)

withDimValue

public DimValHolder.Builder withDimValue(Comparable dimValue,
                                         ValueType type)

This method is called by TopNResultBuilder.addEntry(java.lang.Comparable, java.lang.Object, java.lang.Object[]) to store query results. The method accepts a type argument because Jackson will deserialize numbers as integers instead of longs if they are small enough. Similarly, type mismatch can arise when using floats when Jackson deserializes numbers as doubles instead. This method will ensure that any added dimension value is converted to the expected type.

Parameters:

dimValue - Dimension value from TopNResultBuilder

type - Type that dimValue should have, according to the output type of the DimensionSpec associated with dimValue from the calling TopNResultBuilder

withDimValIndex

public DimValHolder.Builder withDimValIndex(Object dimValIndex)

withMetricValues

public DimValHolder.Builder withMetricValues(Map<String,Object> metricValues)

build

public DimValHolder build()