001/*******************************************************************************
002 * This software is provided as a supplement to the authors' textbooks on digital
003 * image processing published by Springer-Verlag in various languages and editions.
004 * Permission to use and distribute this software is granted under the BSD 2-Clause
005 * "Simplified" License (see http://opensource.org/licenses/BSD-2-Clause).
006 * Copyright (c) 2006-2023 Wilhelm Burger, Mark J. Burge. All rights reserved.
007 * Visit https://imagingbook.com for additional details.
008 ******************************************************************************/
009package imagingbook.common.util.tuples;
010
011/**
012 * A tuple with exactly 4 elements of arbitrary types.
013 *
014 * @param <T0> the type of element 0
015 * @param <T1> the type of element 1
016 * @param <T2> the type of element 2
017 * @param <T3> the type of element 3
018 */
019public final class Tuple4<T0, T1, T2, T3> implements Tuple {
020        
021        public final T0 item0;
022        public final T1 item1;
023        public final T2 item2;
024        public final T3 item3;
025        
026        public Tuple4(T0 item0, T1 item1, T2 item2, T3 item3) {
027                this.item0 = item0;
028                this.item1 = item1;
029                this.item2 = item2;
030                this.item3 = item3;
031        }
032        
033        @Override
034        public String toString() {
035                return String.format("<%s,%s,%s,%s>", item0.toString(), item1.toString(), item2.toString(), item3.toString());
036        }
037
038        public static <T0, T1, T2, T3> Tuple4<T0, T1, T2, T3> from(T0 val0, T1 val1, T2 val2, T3 val3) {
039                return new Tuple4<>(val0, val1, val2, val3);
040        }
041        
042}