1 package org.opentrafficsim.road.gtu.lane.tactical;
2
3 import org.opentrafficsim.base.parameters.ParameterException;
4 import org.opentrafficsim.base.parameters.Parameters;
5
6 /**
7 * Interface for factories of model components, such as strategical planners, tactical planners and car-following models.
8 * <p>
9 * Copyright (c) 2013-2019 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
10 * BSD-style license. See <a href="http://opentrafficsim.org/node/13">OpenTrafficSim License</a>.
11 * <p>
12 * @version $Revision$, $LastChangedDate$, by $Author$, initial version 11 dec. 2017 <br>
13 * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
14 * @author <a href="http://www.tudelft.nl/pknoppers">Peter Knoppers</a>
15 * @author <a href="http://www.transport.citg.tudelft.nl">Wouter Schakel</a>
16 */
17 public interface ModelComponentFactory
18 {
19 /**
20 * Returns parameters for the given component. These parameters should contain, and possibly overwrite, parameters from
21 * sub-components. A parameter factory at the highest level (strategical planner) may overwrite any parameter. This
22 * combination allows that for sub-components, default factories can be used, while the parameter factory only overwrites
23 * parameters different for specific GTU types. The default implementation returns all default parameter values declared at
24 * the class.<br>
25 * <br>
26 * Conventional use is:<br>
27 *
28 * <pre>
29 * Parameters parameters = this.subComponent1Factory.getParameters();
30 * this.subComponent2Factory.getParameters().setAllIn(parameters);
31 * parameters.setDefaultParameters(componentClass);
32 * parameters.setDefaultParameters(staticUtilityClass);
33 * return parameters;
34 * </pre>
35 *
36 * where all parameters used in {@code componentClass} are defined or forwarded in {@code componentClass}.<br>
37 *
38 * <pre>
39 * // forwarded
40 * public static final ParameterTypeAcceleration A = ParameterTypes.A;
41 *
42 * // defined
43 * public static final ParameterTypeDouble FACTOR = new ParameterTypeDouble("factor", "factor on response", 1.0);
44 * </pre>
45 *
46 * The same holds for static utilities that are used. Parameters should be defined at the utility class, and parameters of
47 * used utilities should be included.<br>
48 * <br>
49 * @return Parameters; parameters for the given component
50 * @throws ParameterException on parameter exception
51 */
52 Parameters getParameters() throws ParameterException;
53
54 }