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/*
* SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
*
* SPDX-License-Identifier: EPL-2.0
*/
package tools.refinery.store.query;
import tools.refinery.store.query.equality.LiteralEqualityHelper;
import tools.refinery.store.query.literal.*;
import tools.refinery.store.query.term.*;
import java.util.List;
public interface Constraint {
String name();
List<Parameter> getParameters();
default int arity() {
return getParameters().size();
}
default boolean invalidIndex(int i) {
return i < 0 || i >= arity();
}
default Reduction getReduction() {
return Reduction.NOT_REDUCIBLE;
}
default boolean equals(LiteralEqualityHelper helper, Constraint other) {
return equals(other);
}
default String toReferenceString() {
return name();
}
default CallLiteral call(CallPolarity polarity, List<Variable> arguments) {
return new CallLiteral(polarity, this, arguments);
}
default CallLiteral call(CallPolarity polarity, Variable... arguments) {
return call(polarity, List.of(arguments));
}
default CallLiteral call(Variable... arguments) {
return call(CallPolarity.POSITIVE, arguments);
}
default CallLiteral callTransitive(NodeVariable left, NodeVariable right) {
return call(CallPolarity.TRANSITIVE, List.of(left, right));
}
default AssignedValue<Integer> count(List<Variable> arguments) {
return targetVariable -> new CountLiteral(targetVariable, this, arguments);
}
default AssignedValue<Integer> count(Variable... arguments) {
return count(List.of(arguments));
}
default <R, T> AssignedValue<R> aggregateBy(DataVariable<T> inputVariable, Aggregator<R, T> aggregator,
List<Variable> arguments) {
return targetVariable -> new AggregationLiteral<>(targetVariable, aggregator, inputVariable, this, arguments);
}
default <R, T> AssignedValue<R> aggregateBy(DataVariable<T> inputVariable, Aggregator<R, T> aggregator,
Variable... arguments) {
return aggregateBy(inputVariable, aggregator, List.of(arguments));
}
}
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