org.apache.lens.server.api.query.cost

Interface QueryCost<T extends QueryCost>

Type Parameters:

T -

All Superinterfaces:

Comparable<T>

All Known Implementing Classes:

FactPartitionBasedQueryCost

public interface QueryCost<T extends QueryCost>
extends Comparable<T>

QueryCost Interface.

Method Summary

Modifier and Type	Method and Description
T	add(T queryCost)
long	getEstimatedExecTimeMillis()
double	getEstimatedResourceUsage()
QueryCostType	getQueryCostType()

Methods inherited from interface java.lang.Comparable

compareTo

Method Detail

add

T add(T queryCost)

getQueryCostType

QueryCostType getQueryCostType()

getEstimatedExecTimeMillis

long getEstimatedExecTimeMillis()
                         throws UnsupportedOperationException

Throws:

UnsupportedOperationException

getEstimatedResourceUsage

double getEstimatedResourceUsage()
                          throws UnsupportedOperationException

Throws:

UnsupportedOperationException