Package org.apache.drill.exec.planner.physical

Class DrillDistributionTrait

java.lang.Object

org.apache.drill.exec.planner.physical.DrillDistributionTrait

All Implemented Interfaces:

org.apache.calcite.plan.RelTrait

public class DrillDistributionTrait
extends Object
implements org.apache.calcite.plan.RelTrait

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DrillDistributionTrait.DistributionField
static enum	DrillDistributionTrait.DistributionType
static class	DrillDistributionTrait.NamedDistributionField	Stores distribution field index and field name to be used in exchange operators.

Field Summary

Fields

Modifier and Type	Field	Description
static DrillDistributionTrait	ANY
static DrillDistributionTrait	DEFAULT
static DrillDistributionTrait	RANDOM_DISTRIBUTED
static DrillDistributionTrait	SINGLETON

Constructor Summary

Constructors

Constructor	Description
DrillDistributionTrait(DrillDistributionTrait.DistributionType type)
DrillDistributionTrait(DrillDistributionTrait.DistributionType type, List<DrillDistributionTrait.DistributionField> fields)
DrillDistributionTrait(DrillDistributionTrait.DistributionType type, List<DrillDistributionTrait.DistributionField> fields, PartitionFunction partitionFunction)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
List<DrillDistributionTrait.DistributionField>	getFields()
PartitionFunction	getPartitionFunction()
org.apache.calcite.plan.RelTraitDef<DrillDistributionTrait>	getTraitDef()
DrillDistributionTrait.DistributionType	getType()
int	hashCode()
void	register(org.apache.calcite.plan.RelOptPlanner planner)
boolean	satisfies(org.apache.calcite.plan.RelTrait trait)
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.calcite.plan.RelTrait

apply, isDefault

Field Details

SINGLETON

public static DrillDistributionTrait SINGLETON

RANDOM_DISTRIBUTED

public static DrillDistributionTrait RANDOM_DISTRIBUTED

ANY

public static DrillDistributionTrait ANY

DEFAULT

public static DrillDistributionTrait DEFAULT

Constructor Details

DrillDistributionTrait

public DrillDistributionTrait(DrillDistributionTrait.DistributionType type)

DrillDistributionTrait

public DrillDistributionTrait(DrillDistributionTrait.DistributionType type,
 List<DrillDistributionTrait.DistributionField> fields)

DrillDistributionTrait

public DrillDistributionTrait(DrillDistributionTrait.DistributionType type,
 List<DrillDistributionTrait.DistributionField> fields,
 PartitionFunction partitionFunction)

Method Details

register

public void register(org.apache.calcite.plan.RelOptPlanner planner)

Specified by:

register in interface org.apache.calcite.plan.RelTrait

satisfies

public boolean satisfies(org.apache.calcite.plan.RelTrait trait)

Specified by:

satisfies in interface org.apache.calcite.plan.RelTrait

getTraitDef

public org.apache.calcite.plan.RelTraitDef<DrillDistributionTrait> getTraitDef()

Specified by:

getTraitDef in interface org.apache.calcite.plan.RelTrait

getType

public DrillDistributionTrait.DistributionType getType()

getFields

public List<DrillDistributionTrait.DistributionField> getFields()

getPartitionFunction

public PartitionFunction getPartitionFunction()

hashCode

public int hashCode()

Specified by:

hashCode in interface org.apache.calcite.plan.RelTrait

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Specified by:

equals in interface org.apache.calcite.plan.RelTrait

Overrides:

equals in class Object

toString

public String toString()

Specified by:

toString in interface org.apache.calcite.plan.RelTrait

Overrides:

toString in class Object