Package tools.refinery.interpreter.localsearch.planner.cost.impl

Class HybridMatcherConstraintCostFunction

java.lang.Object

tools.refinery.interpreter.localsearch.planner.cost.impl.StatisticsBasedConstraintCostFunction

tools.refinery.interpreter.localsearch.planner.cost.impl.IndexerBasedConstraintCostFunction

tools.refinery.interpreter.localsearch.planner.cost.impl.HybridMatcherConstraintCostFunction

All Implemented Interfaces:

ICostFunction

@Deprecated
public class HybridMatcherConstraintCostFunction
extends IndexerBasedConstraintCostFunction

Deprecated.

StatisticsBasedConstraintCostFunction should use IQueryResultProvider.estimateCardinality(TupleMask, org.eclipse.viatra.query.runtime.matchers.util.Accuracy)

This cost function is intended to be used on hybrid configuration, with the strict restriction than any non-flattened positive pattern call is executed with Rete engine. This implementation provides the exact number of matches by invoking the result provider for the called pattern.

Field Summary

Fields inherited from class tools.refinery.interpreter.localsearch.planner.cost.impl.StatisticsBasedConstraintCostFunction

DEFAULT_COST, EVAL_UNWIND_EXTENSION_FACTOR, INVERSE_NAVIGATION_PENALTY_DEFAULT, INVERSE_NAVIGATION_PENALTY_GENERIC, MAX_COST

Constructor Summary

Constructors

Constructor	Description
HybridMatcherConstraintCostFunction()	Deprecated.

Method Summary

Modifier and Type	Method	Description
protected double	_calculateCost(PositivePatternCall patternCall, IConstraintEvaluationContext context)	Deprecated.

Methods inherited from class tools.refinery.interpreter.localsearch.planner.cost.impl.IndexerBasedConstraintCostFunction

projectionSize

Methods inherited from class tools.refinery.interpreter.localsearch.planner.cost.impl.StatisticsBasedConstraintCostFunction

_calculateCost, _calculateCost, _calculateCost, _calculateCost, _calculateCost, _calculateCost, _calculateCost, _calculateCost, _calculateCost, _calculateCost, _calculateCost, _calculateCost, apply, bucketSize, calculateBinaryCost, calculateBinaryExtendCost, calculateCost, calculateUnaryConstraintCost, countTuples, navigatesThroughFunctionalDependency, navigatesThroughFunctionalDependency, navigatesThroughFunctionalDependencyInverse

Methods inherited from class java.lang.Object

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

Constructor Details

HybridMatcherConstraintCostFunction

public HybridMatcherConstraintCostFunction()

Deprecated.

Method Details

_calculateCost

protected double _calculateCost(PositivePatternCall patternCall,
 IConstraintEvaluationContext context)

Deprecated.

Overrides:

_calculateCost in class StatisticsBasedConstraintCostFunction