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.math.genetics;
18
19 /**
20 * Algorithm used to select a chromosome pair from a population.
21 *
22 * @since 2.0
23 * @version $Revision: 800116 $ $Date: 2009-08-02 13:49:59 -0400 (Sun, 02 Aug 2009) $
24 */
25 public interface SelectionPolicy {
26 /**
27 * Select two chromosomes from the population.
28 * @param population the population from which the chromosomes are choosen.
29 * @return the selected chromosomes.
30 */
31 ChromosomePair select(Population population);
32 }