io.druid.query.groupby.having

Interface HavingSpec

All Known Implementing Classes:

AlwaysHavingSpec, AndHavingSpec, EqualToHavingSpec, GreaterThanHavingSpec, LessThanHavingSpec, NeverHavingSpec, NotHavingSpec, OrHavingSpec

public interface HavingSpec

A "having" clause that filters aggregated value. This is similar to SQL's "having" clause.

Field Summary

Fields

Modifier and Type	Field and Description
static HavingSpec	ALWAYS
static HavingSpec	NEVER

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()

Field Detail

NEVER

static final HavingSpec NEVER

ALWAYS

static final HavingSpec ALWAYS

Method Detail

eval

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

Evaluates if a given row satisfies the having spec.

Parameters:

row - A Row of data that may contain aggregated values

Returns:

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

getCacheKey

byte[] getCacheKey()