io.druid.query.groupby.having

Class NeverHavingSpec

java.lang.Object

io.druid.query.groupby.having.NeverHavingSpec

All Implemented Interfaces:

HavingSpec

public class NeverHavingSpec
extends Object
implements HavingSpec

A "having" spec that always evaluates to false

Field Summary

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

ALWAYS, NEVER

Constructor Summary

Constructors

Constructor and Description
NeverHavingSpec()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	eval(io.druid.data.input.Row row) Evaluates if a given row satisfies the having spec.
byte[]	getCacheKey()

Methods inherited from class java.lang.Object

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

Constructor Detail

NeverHavingSpec

public NeverHavingSpec()

Method Detail

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