1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.math4.legacy.genetics;
18
19 import org.apache.commons.math4.legacy.exception.MathIllegalArgumentException;
20
21 /**
22 * Algorithm used to select a chromosome pair from a population.
23 *
24 * @since 2.0
25 */
26 public interface SelectionPolicy {
27 /**
28 * Select two chromosomes from the population.
29 * @param population the population from which the chromosomes are chosen.
30 * @return the selected chromosomes.
31 * @throws MathIllegalArgumentException if the population is not compatible with this {@link SelectionPolicy}
32 */
33 ChromosomePair select(Population population) throws MathIllegalArgumentException;
34 }