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.markovchain;
17
18 import broadwick.montecarlo.MonteCarloStep;
19
20 /**
21 * A Path consists of several steps generated at random.
22 */
23 public interface MarkovStepGenerator {
24
25 /**
26 * Generate the next step in the path.
27 * @param step the current step.
28 * @return the proposed next step.
29 */
30 MonteCarloStep generateNextStep(final MonteCarloStep step);
31
32 /**
33 * Get the initial Step of the path.
34 * @return the initial step.
35 */
36 MonteCarloStep getInitialStep();
37 }