Package com.twilio.kudu.sql

Class NullPredicate

java.lang.Object

com.twilio.kudu.sql.CalciteKuduPredicate

com.twilio.kudu.sql.NullPredicate

public final class NullPredicate
extends CalciteKuduPredicate

An implementation of CalciteKuduPredicate that pushes down both NOT NULL and IS NULL to Kudu. KuduPredicate.newIsNullPredicate(ColumnSchema) KuduPredicate.newIsNotNullPredicate(ColumnSchema)

Field Summary

Fields

Modifier and Type	Field	Description
int	columnIdx

Constructor Summary

Constructors

Constructor	Description
NullPredicate(int columnIdx, boolean notNull)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
String	explainPredicate(org.apache.kudu.ColumnSchema schema)	Constructs a string used when generating the explain plan
int	getColumnIdx()	returns the column index for this predicate
int	hashCode()
org.apache.kudu.client.KuduPredicate	toPredicate(org.apache.kudu.ColumnSchema columnSchema, boolean invertValue)	Transforms this POJO into a proper KuduPredicate
String	toString()

Methods inherited from class com.twilio.kudu.sql.CalciteKuduPredicate

inListOptimizationAllowed, invertComparisonOp, toPredicate

Methods inherited from class java.lang.Object

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

Field Detail

columnIdx

public final int columnIdx

Constructor Detail

NullPredicate

public NullPredicate(int columnIdx,
                     boolean notNull)

Method Detail

getColumnIdx

public int getColumnIdx()

Description copied from class: CalciteKuduPredicate

returns the column index for this predicate

Specified by:

getColumnIdx in class CalciteKuduPredicate

Returns:

integer of the column in Kudu

explainPredicate

public String explainPredicate(org.apache.kudu.ColumnSchema schema)

Description copied from class: CalciteKuduPredicate

Constructs a string used when generating the explain plan

Specified by:

explainPredicate in class CalciteKuduPredicate

Parameters:

schema - Schema of the column from Kudu

Returns:

Formatted string from RelWriter to use

toPredicate

public org.apache.kudu.client.KuduPredicate toPredicate(org.apache.kudu.ColumnSchema columnSchema,
                                                        boolean invertValue)

Description copied from class: CalciteKuduPredicate

Transforms this POJO into a proper KuduPredicate

Specified by:

toPredicate in class CalciteKuduPredicate

Parameters:

columnSchema - column schema to use for the predicate

invertValue - true if the column is stored in descending order

Returns:

KuduPredicate that represents this POJO

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object