io.druid.query.groupby.having

Class EqualToHavingSpec

java.lang.Object

io.druid.query.groupby.having.EqualToHavingSpec

All Implemented Interfaces:

HavingSpec

public class EqualToHavingSpec
extends Object
implements HavingSpec

The "=" operator in a "having" clause. This is similar to SQL's "having aggregation = value", except that in SQL an aggregation is an expression instead of an aggregation name as in Druid.

Field Summary

Fields inherited from interface io.druid.query.groupby.having.HavingSpec

ALWAYS, NEVER

Constructor Summary

Constructors

Constructor and Description
EqualToHavingSpec(String aggName, Number value)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(Object o) This method treats internal value as double mainly for ease of test.
boolean	eval(io.druid.data.input.Row row) Evaluates if a given row satisfies the having spec.
String	getAggregationName()
byte[]	getCacheKey()
Number	getValue()
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

EqualToHavingSpec

public EqualToHavingSpec(String aggName,
                 Number value)

Method Detail

getValue

public Number getValue()

getAggregationName

public String getAggregationName()

eval

public boolean eval(io.druid.data.input.Row row)

Description copied from interface: HavingSpec

Evaluates if a given row satisfies the having spec.

Specified by:

eval in interface HavingSpec

Parameters:

row - A Row of data that may contain aggregated values

Returns:

true if the given row satisfies the having spec. False otherwise.

getCacheKey

public byte[] getCacheKey()

Specified by:

getCacheKey in interface HavingSpec

equals

public boolean equals(Object o)

This method treats internal value as double mainly for ease of test.

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object