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/*******************************************************************************
* Copyright (c) 2010-2015, Andras Szabolcs Nagy, Abel Hegedus, Akos Horvath, Zoltan Ujhelyi and Daniel Varro
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0 which is available at
* http://www.eclipse.org/legal/epl-v20.html.
*
* SPDX-License-Identifier: EPL-2.0
*******************************************************************************/
package org.eclipse.viatra.dse.objectives;
import java.util.Arrays;
import java.util.List;
import org.eclipse.viatra.dse.designspace.api.TrajectoryInfo;
/**
* This class represents a trajectory and its fitness.
* @author Andras Szabolcs Nagy
*
*/
public class TrajectoryFitness {
public Object[] trajectory;
public Fitness fitness;
public int rank;
public double crowdingDistance;
private int hash;
public int survive;
/**
* Creates a {@link TrajectoryFitness} with the full trajectory.
* @param trajectory The trajectory.
* @param fitness The fitness.
*/
public TrajectoryFitness(Object[] trajectory, Fitness fitness) {
this.fitness = fitness;
this.trajectory = trajectory;
}
/**
* Creates a {@link TrajectoryFitness} with the full trajectory.
* @param trajectoryInfo The trajectory.
* @param fitness The fitness.
*/
public TrajectoryFitness(TrajectoryInfo trajectoryInfo, Fitness fitness) {
this.fitness = fitness;
List<Object> fullTraj = trajectoryInfo.getTrajectory();
trajectory = fullTraj.toArray(new Object[fullTraj.size()]);
}
/**
* Creates a {@link TrajectoryFitness} with the given activation id}
* @param transition The transition.
* @param fitness The fitness.
*/
public TrajectoryFitness(Object transition, Fitness fitness) {
this.fitness = fitness;
trajectory = new Object[] {transition};
}
@Override
public boolean equals(Object obj) {
if (obj instanceof TrajectoryFitness) {
return Arrays.equals(trajectory, ((TrajectoryFitness) obj).trajectory);
}
return false;
}
@Override
public int hashCode() {
if (hash == 0 && trajectory.length > 0) {
hash = Arrays.hashCode(trajectory);
}
return hash;
}
@Override
public String toString() {
return Arrays.toString(trajectory) + fitness.toString();
}
}
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