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/*
* SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
*
* SPDX-License-Identifier: EPL-2.0
*/
package tools.refinery.store.representation.cardinality;
public final class CardinalityIntervals {
public static final CardinalityInterval NONE = exactly(0);
public static final CardinalityInterval ONE = exactly(1);
public static final CardinalityInterval LONE = atMost(1);
public static final CardinalityInterval SET = atLeast(0);
public static final CardinalityInterval SOME = atLeast(1);
public static final CardinalityInterval ERROR = EmptyCardinalityInterval.INSTANCE;
private CardinalityIntervals() {
throw new IllegalStateException("This is a static utility class and should not be instantiated directly");
}
public static CardinalityInterval between(int lowerBound, UpperCardinality upperBound) {
if (upperBound.compareToInt(lowerBound) < 0) {
return ERROR;
}
return new NonEmptyCardinalityInterval(lowerBound, upperBound);
}
public static CardinalityInterval between(int lowerBound, int upperBound) {
return between(lowerBound, UpperCardinalities.atMost(upperBound));
}
public static CardinalityInterval atMost(UpperCardinality upperBound) {
return new NonEmptyCardinalityInterval(0, upperBound);
}
public static CardinalityInterval atMost(int upperBound) {
return atMost(UpperCardinalities.atMost(upperBound));
}
public static CardinalityInterval atLeast(int lowerBound) {
return new NonEmptyCardinalityInterval(lowerBound, UpperCardinalities.UNBOUNDED);
}
public static CardinalityInterval exactly(int lowerBound) {
return new NonEmptyCardinalityInterval(lowerBound, UpperCardinalities.atMost(lowerBound));
}
}
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