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.fitting.leastsquares;
18
19 import org.apache.commons.math4.legacy.linear.RealVector;
20 import org.apache.commons.math4.legacy.optim.ConvergenceChecker;
21 import org.apache.commons.math4.legacy.core.IntegerSequence;
22
23 /**
24 * An adapter that delegates to another implementation of {@link LeastSquaresProblem}.
25 *
26 * @since 3.3
27 */
28 public class LeastSquaresAdapter implements LeastSquaresProblem {
29
30 /** the delegate problem. */
31 private final LeastSquaresProblem problem;
32
33 /**
34 * Delegate the {@link LeastSquaresProblem} interface to the given implementation.
35 *
36 * @param problem the delegate
37 */
38 public LeastSquaresAdapter(final LeastSquaresProblem problem) {
39 this.problem = problem;
40 }
41
42 /** {@inheritDoc} */
43 @Override
44 public RealVector getStart() {
45 return problem.getStart();
46 }
47
48 /** {@inheritDoc} */
49 @Override
50 public int getObservationSize() {
51 return problem.getObservationSize();
52 }
53
54 /** {@inheritDoc} */
55 @Override
56 public int getParameterSize() {
57 return problem.getParameterSize();
58 }
59
60 /** {@inheritDoc}
61 */
62 @Override
63 public Evaluation evaluate(final RealVector point) {
64 return problem.evaluate(point);
65 }
66
67 /** {@inheritDoc} */
68 @Override
69 public IntegerSequence.Incrementor getEvaluationCounter() {
70 return problem.getEvaluationCounter();
71 }
72
73 /** {@inheritDoc} */
74 @Override
75 public IntegerSequence.Incrementor getIterationCounter() {
76 return problem.getIterationCounter();
77 }
78
79 /** {@inheritDoc} */
80 @Override
81 public ConvergenceChecker<Evaluation> getConvergenceChecker() {
82 return problem.getConvergenceChecker();
83 }
84 }