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 * A collection of chromosomes that facilitates generational evolution. 21 * 22 * @since 2.0 23 * @version $Revision: 811685 $ $Date: 2009-09-05 19:36:48 +0200 (sam. 05 sept. 2009) $ 24 */ 25 public interface Population extends Iterable<Chromosome> { 26 /** 27 * Access the current population size. 28 * @return the current population size. 29 */ getPopulationSize()30 int getPopulationSize(); 31 32 /** 33 * Access the maximum population size. 34 * @return the maximum population size. 35 */ getPopulationLimit()36 int getPopulationLimit(); 37 38 /** 39 * Start the population for the next generation. 40 * @return the beginnings of the next generation. 41 */ nextGeneration()42 Population nextGeneration(); 43 44 /** 45 * Add the given chromosome to the population. 46 * @param chromosome the chromosome to add. 47 */ addChromosome(Chromosome chromosome)48 void addChromosome(Chromosome chromosome); 49 50 /** 51 * Access the fittest chromosome in this population. 52 * @return the fittest chromosome. 53 */ getFittestChromosome()54 Chromosome getFittestChromosome(); 55 } 56