1 /*
2 * Copyright 2013 University of Glasgow.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package broadwick.montecarlo.acceptor;
17
18 import broadwick.montecarlo.MonteCarloResults;
19
20 /**
21 * MonteCarloAcceptor for a Monte Carlo step.
22 */
23 public interface MonteCarloAcceptor {
24
25 /**
26 * Accept a step in a Monte Carlo path/chain based on the ratio of the results at each step.
27 * @param oldResult the results at the previous step.
28 * @param newResult the result at the current (proposed) step.
29 * @return true if the step that generated newResults is to be accepted, false otherwise.
30 */
31 boolean accept(MonteCarloResults oldResult, MonteCarloResults newResult);
32 }