vishnu.model.algebra.optimizer.costs
Class ScanSelectionCostEstimator

java.lang.Object
  vishnu.model.algebra.optimizer.costs.AbstractCostEstimator
      vishnu.model.algebra.optimizer.costs.ScanSelectionCostEstimator

All Implemented Interfaces:

CostEstimator

public class ScanSelectionCostEstimator
extends AbstractCostEstimator

Constructor Summary

ScanSelectionCostEstimator()

Method Summary

int	inputCost()
int	outputCost()

Methods inherited from class vishnu.model.algebra.optimizer.costs.AbstractCostEstimator

cost, getDatabase, getRelation, image, innerImage, innerPages, log2, max, setDatabase, setRelation

Methods inherited from class java.lang.Object

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

Constructor Detail

ScanSelectionCostEstimator

public ScanSelectionCostEstimator()

Method Detail

inputCost

public int inputCost()

Specified by:

inputCost in class AbstractCostEstimator

outputCost

public int outputCost()

Specified by:

outputCost in class AbstractCostEstimator