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.analysis;
18
19 import org.apache.commons.math.FunctionEvaluationException;
20
21 /**
22 * Wrapper class for counting functions calls.
23 *
24 * @version $Revision: 480442 $ $Date: 2006-11-29 08:21:22 +0100 (mer., 29 nov. 2006) $
25 */
26 public class MonitoredFunction implements UnivariateRealFunction {
27
28 public MonitoredFunction(UnivariateRealFunction f) {
29 callsCount = 0;
30 this.f = f;
31 }
32
33 public void setCallsCount(int callsCount) {
34 this.callsCount = callsCount;
35 }
36
37 public int getCallsCount() {
38 return callsCount;
39 }
40
41 public double value(double x) throws FunctionEvaluationException {
42 ++callsCount;
43 return f.value(x);
44 }
45
46 private int callsCount;
47 private UnivariateRealFunction f;
48
49 }