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 }