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/*******************************************************************************
* Copyright (c) 2010-2016, Andras Szabolcs Nagy, Zoltan Ujhelyi and Daniel Varro
* Copyright (c) 2023 The Refinery Authors <https://refinery.tools/>
* 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 tools.refinery.store.dse.objectives;
import tools.refinery.store.dse.DesignSpaceExplorationAdapter;
import java.util.Random;
/**
* This hard objective is fulfilled in any circumstances. Use it if all states should be regarded as a valid solution.
*
* @author Andras Szabolcs Nagy
*
*/
public class AlwaysSatisfiedRandomHardObjective extends BaseObjective {
private static final String DEFAULT_NAME = "AlwaysSatisfiedDummyHardObjective";
private static final Random random = new Random(0);
public AlwaysSatisfiedRandomHardObjective() {
super(DEFAULT_NAME);
}
public AlwaysSatisfiedRandomHardObjective(String name) {
super(name);
}
@Override
public Double getFitness(DesignSpaceExplorationAdapter context) {
// return 0d;
return random.nextDouble();
}
@Override
public boolean isHardObjective() {
return true;
}
@Override
public boolean satisfiesHardObjective(Double fitness) {
return true;
}
@Override
public Objective createNew() {
return this;
}
}
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