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 18 package org.apache.commons.math.optimization; 19 20 /** 21 * This class holds a point and its associated cost. 22 * <p>This is a simple immutable container.</p> 23 * @version $Revision: 620312 $ $Date: 2008-02-10 12:28:59 -0700 (Sun, 10 Feb 2008) $ 24 * @see CostFunction 25 * @since 1.2 26 */ 27 public class PointCostPair { 28 29 /** Build a point/cost pair. 30 * @param point point coordinates (the built instance will store 31 * a copy of the array, not the array passed as argument) 32 * @param cost point cost 33 */ 34 public PointCostPair(double[] point, double cost) { 35 this.point = (double[]) point.clone(); 36 this.cost = cost; 37 } 38 39 /** Get the point. 40 * @return a copy of the stored point 41 */ 42 public double[] getPoint() { 43 return (double[]) point.clone(); 44 } 45 46 /** Get the cost. 47 * @return the stored cost 48 */ 49 public double getCost() { 50 return cost; 51 } 52 53 /** Point coordinates. */ 54 private final double[] point; 55 56 /** Cost associated to the point. */ 57 private final double cost; 58 59 }