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/*
* SPDX-FileCopyrightText: 2023 The Refinery Authors <https://refinery.tools/>
*
* SPDX-License-Identifier: EPL-2.0
*/
package tools.refinery.store.dse.transition.objectives;
import tools.refinery.store.query.dnf.FunctionalQuery;
import tools.refinery.store.query.dnf.RelationalQuery;
import java.util.Collection;
import java.util.List;
public final class Objectives {
private Objectives() {
throw new IllegalStateException("This is a static utility class and should not be instantiated directly");
}
public static CountObjective count(RelationalQuery query, double weight) {
return new CountObjective(query, weight);
}
public static CountObjective count(RelationalQuery query) {
return new CountObjective(query);
}
public static QueryObjective value(FunctionalQuery<? extends Number> query) {
return new QueryObjective(query);
}
public static Objective sum(Objective... objectives) {
return sum(List.of(objectives));
}
public static Objective sum(Collection<? extends Objective> objectives) {
if (objectives.size() == 1) {
return objectives.iterator().next();
}
return new CompositeObjective(objectives);
}
}
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