001 /*
002 * Java Genetic Algorithm Library (jenetics-4.3.0).
003 * Copyright (c) 2007-2018 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 */
020 package io.jenetics;
021
022 import static io.jenetics.internal.util.Hashes.hash;
023
024 import java.io.Serializable;
025 import java.util.Objects;
026
027 import io.jenetics.util.ISeq;
028 import io.jenetics.util.IntRange;
029
030 /**
031 * Abstract chromosome for {@code BoundedGene}s.
032 *
033 * @author <a href="mailto:franz.wilhelmstoetter@gmail.com">Franz Wilhelmstötter</a>
034 * @version 1.6
035 * @since 1.6
036 */
037 abstract class AbstractBoundedChromosome<
038 A extends Comparable<? super A>,
039 G extends BoundedGene<A, G>
040 >
041 extends VariableChromosome<G>
042 implements BoundedChromosome<A, G>, Serializable
043 {
044
045 private static final long serialVersionUID = 1L;
046
047 /**
048 * The minimum value of this {@code BoundedChromosome}.
049 */
050 final A _min;
051
052 /**
053 * The maximum value of this {@code BoundedChromosome}.
054 */
055 final A _max;
056
057 /**
058 * Create a new chromosome from the given genes array.
059 *
060 * @param genes the genes of the new chromosome.
061 * @throws IllegalArgumentException if the length of the gene sequence is
062 * empty or doesn't match with the allowed length range.
063 * @throws IllegalArgumentException if the minimum or maximum of the range
064 * is smaller or equal zero
065 * @throws IllegalArgumentException if the given range size is zero
066 * @throws NullPointerException if the {@code genes} are {@code null}.
067 */
068 protected AbstractBoundedChromosome(
069 final ISeq<? extends G> genes,
070 final IntRange lengthRange
071 ) {
072 super(genes, lengthRange);
073 _min = genes.get(0).getMin();
074 _max = genes.get(0).getMax();
075 }
076
077 @Override
078 public A getMin() {
079 return _min;
080 }
081
082 @Override
083 public A getMax() {
084 return _max;
085 }
086
087 @Override
088 public int hashCode() {
089 return
090 hash(super.hashCode(),
091 hash(_min,
092 hash(_max)));
093 }
094
095 @Override
096 public boolean equals(final Object obj) {
097 return obj == this ||
098 obj != null &&
099 getClass() == obj.getClass() &&
100 Objects.equals(_min, ((AbstractBoundedChromosome)obj)._min) &&
101 Objects.equals(_max, ((AbstractBoundedChromosome)obj)._max) &&
102 super.equals(obj);
103 }
104
105 }
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