io.prestosql.cost

Class LocalCostEstimate

java.lang.Object

io.prestosql.cost.LocalCostEstimate

public class LocalCostEstimate
extends Object

Represents inherent cost of some plan node, not including cost of its sources.

Method Summary

Modifier and Type	Method and Description
static LocalCostEstimate	addPartialComponents(LocalCostEstimate one, LocalCostEstimate two, LocalCostEstimate... more) Sums partial cost estimates of some (single) plan node.
double	getCpuCost()
double	getMaxMemory()
double	getNetworkCost()
static LocalCostEstimate	of(double cpuCost, double maxMemory, double networkCost)
static LocalCostEstimate	ofCpu(double cpuCost)
static LocalCostEstimate	ofNetwork(double networkCost)
PlanCostEstimate	toPlanCost() Deprecated. This class represents individual cost of a part of a plan (usually of a single PlanNode). Use CostProvider instead.
String	toString()
static LocalCostEstimate	unknown()
static LocalCostEstimate	zero()

Methods inherited from class java.lang.Object

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

Method Detail

unknown

public static LocalCostEstimate unknown()

zero

public static LocalCostEstimate zero()

ofCpu

public static LocalCostEstimate ofCpu(double cpuCost)

ofNetwork

public static LocalCostEstimate ofNetwork(double networkCost)

of

public static LocalCostEstimate of(double cpuCost,
                                   double maxMemory,
                                   double networkCost)

getCpuCost

public double getCpuCost()

getMaxMemory

public double getMaxMemory()

getNetworkCost

public double getNetworkCost()

toPlanCost

@Deprecated
public PlanCostEstimate toPlanCost()

Deprecated. This class represents individual cost of a part of a plan (usually of a single PlanNode). Use CostProvider instead.

toString

public String toString()

Overrides:

toString in class Object

addPartialComponents

public static LocalCostEstimate addPartialComponents(LocalCostEstimate one,
                                                     LocalCostEstimate two,
                                                     LocalCostEstimate... more)

Sums partial cost estimates of some (single) plan node.