org.eclipse.viatra.dse.objectives.impl

Class WeightedQueriesSoftObjective

java.lang.Object

org.eclipse.viatra.dse.objectives.impl.BaseObjective

org.eclipse.viatra.dse.objectives.impl.WeightedQueriesSoftObjective

All Implemented Interfaces:

IObjective

Deprecated.

Use ConstraintsObjective instead.

@Deprecated
public class WeightedQueriesSoftObjective
extends BaseObjective

This soft objective collects a list of VIATRA queries and weights. Then the fitness value of a solution is calculated in the following way:

fitness = sum( pattern[i].countMatches() * weight[i] )

See Also:

IObjective

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	DEFAULT_NAME Deprecated.

Constructor Summary

Constructors

Constructor and Description
WeightedQueriesSoftObjective() Deprecated.
WeightedQueriesSoftObjective(java.util.List<org.eclipse.viatra.query.runtime.api.IQuerySpecification<? extends org.eclipse.viatra.query.runtime.api.ViatraQueryMatcher<? extends org.eclipse.viatra.query.runtime.api.IPatternMatch>>> constraints, java.util.List<java.lang.Double> weights) Deprecated.
WeightedQueriesSoftObjective(java.lang.String name) Deprecated.
WeightedQueriesSoftObjective(java.lang.String name, java.util.List<org.eclipse.viatra.query.runtime.api.IQuerySpecification<? extends org.eclipse.viatra.query.runtime.api.ViatraQueryMatcher<? extends org.eclipse.viatra.query.runtime.api.IPatternMatch>>> constraints, java.util.List<java.lang.Double> weights) Deprecated.

Method Summary

Methods

Modifier and Type	Method and Description
IObjective	createNew() Deprecated. Returns an instance of the IObjective.
java.lang.Double	getFitness(ThreadContext context) Deprecated. Calculates the value of the objective on a given solution (trajectory).
void	init(ThreadContext context) Deprecated. Initializes the objective.
boolean	isHardObjective() Deprecated. Returns true if the objective is a hard objective.
boolean	satisifiesHardObjective(java.lang.Double fitness) Deprecated. Determines if the given fitness value satisfies the hard objective.
WeightedQueriesSoftObjective	withConstraint(org.eclipse.viatra.query.runtime.api.IQuerySpecification<? extends org.eclipse.viatra.query.runtime.api.ViatraQueryMatcher<? extends org.eclipse.viatra.query.runtime.api.IPatternMatch>> constraint, double weight) Deprecated. Adds a new VIATRA Query Specification.

Methods inherited from class org.eclipse.viatra.dse.objectives.impl.BaseObjective

equals, getComparator, getLevel, getName, hashCode, setComparator, setLevel, toString, withComparator, withLevel

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Field Detail

DEFAULT_NAME

public static final java.lang.String DEFAULT_NAME

Deprecated.

See Also:

Constant Field Values

Constructor Detail

WeightedQueriesSoftObjective

public WeightedQueriesSoftObjective(java.lang.String name,
                            java.util.List<org.eclipse.viatra.query.runtime.api.IQuerySpecification<? extends org.eclipse.viatra.query.runtime.api.ViatraQueryMatcher<? extends org.eclipse.viatra.query.runtime.api.IPatternMatch>>> constraints,
                            java.util.List<java.lang.Double> weights)

Deprecated.

WeightedQueriesSoftObjective

public WeightedQueriesSoftObjective(java.util.List<org.eclipse.viatra.query.runtime.api.IQuerySpecification<? extends org.eclipse.viatra.query.runtime.api.ViatraQueryMatcher<? extends org.eclipse.viatra.query.runtime.api.IPatternMatch>>> constraints,
                            java.util.List<java.lang.Double> weights)

Deprecated.

WeightedQueriesSoftObjective

public WeightedQueriesSoftObjective(java.lang.String name)

Deprecated.

WeightedQueriesSoftObjective

public WeightedQueriesSoftObjective()

Deprecated.

Method Detail

withConstraint

public WeightedQueriesSoftObjective withConstraint(org.eclipse.viatra.query.runtime.api.IQuerySpecification<? extends org.eclipse.viatra.query.runtime.api.ViatraQueryMatcher<? extends org.eclipse.viatra.query.runtime.api.IPatternMatch>> constraint,
                                          double weight)

Deprecated.

Adds a new VIATRA Query Specification.

Parameters:

constraint - A VIATRA Query Specification.

weight - The weight of the pattern.

Returns:

The actual instance to enable builder pattern like usage.

getFitness

public java.lang.Double getFitness(ThreadContext context)

Deprecated.

Description copied from interface: IObjective

Calculates the value of the objective on a given solution (trajectory).

Parameters:

context - The ThreadContext

Returns:

The objective value in double.

init

public void init(ThreadContext context)

Deprecated.

Description copied from interface: IObjective

Initializes the objective. It is called exactly once for every thread starts.

Parameters:

context - The ThreadContext.

createNew

public IObjective createNew()

Deprecated.

Description copied from interface: IObjective

Returns an instance of the IObjective. If it returns the same instance, all the methods has to be thread save as they are called concurrently.

Returns:

An instance of the objective.

isHardObjective

public boolean isHardObjective()

Deprecated.

Description copied from interface: IObjective

Returns true if the objective is a hard objective. In such a case the method IObjective.satisifiesHardObjective(Double) is called.

Returns:

True if the objective is a hard objective.

See Also:

IObjective.satisifiesHardObjective(Double), IObjective

satisifiesHardObjective

public boolean satisifiesHardObjective(java.lang.Double fitness)

Deprecated.

Description copied from interface: IObjective

Determines if the given fitness value satisfies the hard objective.

Parameters:

fitness - The fitness value of a solution.

Returns:

True if it satisfies the hard objective or it is a soft constraint.

See Also:

IObjective