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.analysis; 18 19 20 /** 21 * Wrapper class for counting functions calls. 22 * 23 */ 24 public class MonitoredFunction implements UnivariateFunction { 25 26 public MonitoredFunction(UnivariateFunction f) { 27 callsCount = 0; 28 this.f = f; 29 } 30 31 public void setCallsCount(int callsCount) { 32 this.callsCount = callsCount; 33 } 34 35 public int getCallsCount() { 36 return callsCount; 37 } 38 39 @Override 40 public double value(double x) { 41 ++callsCount; 42 return f.value(x); 43 } 44 45 private int callsCount; 46 private final UnivariateFunction f; 47 }