Package com.twilio.kudu.sql

Class ComparisonPredicate

java.lang.Object

com.twilio.kudu.sql.CalciteKuduPredicate

com.twilio.kudu.sql.ComparisonPredicate

public final class ComparisonPredicate
extends CalciteKuduPredicate

An implementation of CalciteKuduPredicate that creates comparison KuduPredicate KuduPredicate.newComparisonPredicate(ColumnSchema, org.apache.kudu.client.KuduPredicate.ComparisonOp, Object)

Field Summary

Fields

Modifier and Type	Field	Description
int	columnIdx
org.apache.kudu.client.KuduPredicate.ComparisonOp	operation
Object	rightHandValue

Constructor Summary

Constructors

Constructor	Description
ComparisonPredicate(int columnIdx, org.apache.kudu.client.KuduPredicate.ComparisonOp operation, Object rightHandValue)

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()
boolean	inListOptimizationAllowed(int columnIdx)	Returns true or false if this can be considered for in list optimization.
org.apache.kudu.client.KuduPredicate	toPredicate(org.apache.kudu.ColumnSchema columnSchema, boolean invertValue)	In order to support descending ordered primary key column we invert the column value (see MutationState.getColumnValue())
String	toString()

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

invertComparisonOp, toPredicate

Methods inherited from class java.lang.Object

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

Field Detail

operation

public final org.apache.kudu.client.KuduPredicate.ComparisonOp operation

rightHandValue

public final Object rightHandValue

columnIdx

public final int columnIdx

Constructor Detail

ComparisonPredicate

public ComparisonPredicate(int columnIdx,
                           org.apache.kudu.client.KuduPredicate.ComparisonOp operation,
                           Object rightHandValue)

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

inListOptimizationAllowed

public boolean inListOptimizationAllowed(int columnIdx)

Description copied from class: CalciteKuduPredicate

Returns true or false if this can be considered for in list optimization.

Overrides:

inListOptimizationAllowed in class CalciteKuduPredicate

Parameters:

columnIdx - the column index in the KuduTable

Returns:

true if this column and predicate can be optimized into an InListPredicate

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)

In order to support descending ordered primary key column we invert the column value (see MutationState.getColumnValue())

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