Package org.apache.druid.query.groupby.having

Class GreaterThanHavingSpec

java.lang.Object

org.apache.druid.query.groupby.having.GreaterThanHavingSpec

All Implemented Interfaces:

Cacheable, HavingSpec

public class GreaterThanHavingSpec
extends Object
implements HavingSpec

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

Constructor Summary

Constructors

Constructor	Description
GreaterThanHavingSpec(String aggName, Number value)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)	This method treats internal value as double mainly for ease of test.
boolean	eval(ResultRow row)	Evaluates if a given row satisfies the having spec.
String	getAggregationName()
byte[]	getCacheKey()	Get a byte array used as a cache key.
Number	getValue()
int	hashCode()
void	setQuery(GroupByQuery query)	Informs this HavingSpec that rows passed to "eval" will originate from a particular groupBy query.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

GreaterThanHavingSpec

public GreaterThanHavingSpec(String aggName,
                             Number value)

Method Detail

getAggregationName

public String getAggregationName()

getValue

public Number getValue()

setQuery

public void setQuery(GroupByQuery query)

Description copied from interface: HavingSpec

Informs this HavingSpec that rows passed to "eval" will originate from a particular groupBy query.

Specified by:

setQuery in interface HavingSpec

eval

public boolean eval(ResultRow 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.

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

getCacheKey

public byte[] getCacheKey()

Description copied from interface: Cacheable

Get a byte array used as a cache key.

Specified by:

getCacheKey in interface Cacheable

Returns:

a cache key