001/*
002 * Java Genetic Algorithm Library (jenetics-7.1.0).
003 * Copyright (c) 2007-2022 Franz Wilhelmstötter
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 *
017 * Author:
018 *    Franz Wilhelmstötter (franz.wilhelmstoetter@gmail.com)
019 */
020package io.jenetics;
021
022/**
023 * Numeric chromosome interface.
024 *
025 * @implSpec
026 * Implementations of the {@code NumericChromosome} interface must be
027 * <em>immutable</em> and guarantee an efficient random access ({@code O(1)}) to
028 * the genes. A {@code Chromosome} must contains at least one {@code Gene}.
029 *
030 * @see NumericGene
031 *
032 * @author <a href="mailto:franz.wilhelmstoetter@gmail.com">Franz Wilhelmstötter</a>
033 * @since 1.6
034 * @version 5.2
035 */
036public interface NumericChromosome<
037        N extends Number & Comparable<? super N>,
038        G extends NumericGene<N, G>
039>
040        extends BoundedChromosome<N, G>
041{
042
043        /**
044         * Return the byte value of this {@code NumericChromosome} at the given
045         * {@code index}.
046         *
047         * @param index the index of the {@link NumericGene}.
048         * @return the byte value of the {@link Gene} with the given {@code index}.
049         * @throws IndexOutOfBoundsException if the index is out of range
050         *         (index &lt; 0 || index &gt;= length()).
051         */
052        default byte byteValue(final int index) {
053                return get(index).allele().byteValue();
054        }
055
056        /**
057         * Return the byte value of this {@code NumericChromosome} at the
058         * {@code index} 0.
059         *
060         * @return the byte value of the {@link Gene} with {@code index} 0.
061         */
062        default byte byteValue() {
063                return byteValue(0);
064        }
065
066        /**
067         * Return the short value of this {@code NumericChromosome} at the given
068         * {@code index}.
069         *
070         * @param index the index of the {@link NumericGene}.
071         * @return the short value of the {@link Gene} with the given {@code index}.
072         * @throws IndexOutOfBoundsException if the index is out of range
073         *         (index &lt; 0 || index &gt;= length()).
074         */
075        default short shortValue(final int index) {
076                return get(index).allele().shortValue();
077        }
078
079        /**
080         * Return the short value of this {@code NumericChromosome} at the
081         * {@code index} 0.
082         *
083         * @return the short value of the {@link Gene} with {@code index} 0.
084         */
085        default short shortValue() {
086                return shortValue(0);
087        }
088
089        /**
090         * Return the int value of this {@code NumericChromosome} at the given
091         * {@code index}.
092         *
093         * @param index the index of the {@link NumericGene}.
094         * @return the int value of the {@link Gene} with the given {@code index}.
095         * @throws IndexOutOfBoundsException if the index is out of range
096         *         (index &lt; 0 || index &gt;= length()).
097         */
098        default int intValue(final int index) {
099                return get(index).allele().intValue();
100        }
101
102        /**
103         * Return the int value of this {@code NumericChromosome} at the
104         * {@code index} 0.
105         *
106         * @return the int value of the {@link Gene} with {@code index} 0.
107         */
108        default int intValue() {
109                return intValue(0);
110        }
111
112        /**
113         * Return the long value of this {@code NumericChromosome} at the given
114         * {@code index}.
115         *
116         * @param index the index of the {@link NumericGene}.
117         * @return the long value of the {@link Gene} with the given {@code index}.
118         * @throws IndexOutOfBoundsException if the index is out of range
119         *         (index &lt; 0 || index &gt;= length()).
120         */
121        default long longValue(final int index) {
122                return get(index).allele().longValue();
123        }
124
125        /**
126         * Return the long value of this {@code NumericChromosome} at the
127         * {@code index} 0.
128         *
129         * @return the long value of the {@link Gene} with {@code index} 0.
130         */
131        default long longValue() {
132                return longValue(0);
133        }
134
135        /**
136         * Return the float value of this {@code NumericChromosome} at the given
137         * {@code index}.
138         *
139         * @param index the index of the {@link NumericGene}.
140         * @return the float value of the {@link Gene} with the given {@code index}.
141         * @throws IndexOutOfBoundsException if the index is out of range
142         *         (index &lt; 0 || index &gt;= length()).
143         */
144        default float floatValue(final int index) {
145                return get(index).allele().floatValue();
146        }
147
148        /**
149         * Return the float value of this {@code NumericChromosome} at the
150         * {@code index} 0.
151         *
152         * @return the float value of the {@link Gene} with {@code index} 0.
153         */
154        default float floatValue() {
155                return floatValue(0);
156        }
157
158        /**
159         * Return the double value of this {@code NumericChromosome} at the given
160         * {@code index}.
161         *
162         * @param index the index of the {@link NumericGene}.
163         * @return the double value of the {@link Gene} with the given {@code index}.
164         * @throws IndexOutOfBoundsException if the index is out of range
165         *         (index &lt; 0 || index &gt;= length()).
166         */
167        default double doubleValue(final int index) {
168                return get(index).allele().doubleValue();
169        }
170
171        /**
172         * Return the double value of this {@code NumericChromosome} at the
173         * {@code index} 0.
174         *
175         * @return the double value of the {@link Gene} with {@code index} 0.
176         */
177        default double doubleValue() {
178                return doubleValue(0);
179        }
180
181}