| 1 | /* This file is part of the project "Hilbert II" - http://www.qedeq.org |
| 2 | * |
| 3 | * Copyright 2000-2014, Michael Meyling <mime@qedeq.org>. |
| 4 | * |
| 5 | * "Hilbert II" is free software; you can redistribute |
| 6 | * it and/or modify it under the terms of the GNU General Public |
| 7 | * License as published by the Free Software Foundation; either |
| 8 | * version 2 of the License, or (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | */ |
| 15 | |
| 16 | package org.qedeq.kernel.bo.logic.model; |
| 17 | |
| 18 | /** |
| 19 | * A model for our mathematical world. It has only one entity. |
| 20 | * |
| 21 | * @author Michael Meyling |
| 22 | */ |
| 23 | public final class UnaryDynamicModel extends DynamicModel { |
| 24 | |
| 25 | /** "Zero" or empty class. */ |
| 26 | public static final Entity ZERO = new Entity(0, "0", "{} or empty set"); |
| 27 | |
| 28 | /** Map to zero. */ |
| 29 | public static final Function FUNCTION_ZERO = new Function(0, 99, "->0", "always 0") { |
| 30 | public Entity map(final Entity[] entities) { |
| 31 | return ZERO; |
| 32 | } |
| 33 | }; |
| 34 | |
| 35 | /** |
| 36 | * Constructor. |
| 37 | */ |
| 38 | public UnaryDynamicModel() { |
| 39 | super("one element"); |
| 40 | addEntity(ZERO); |
| 41 | |
| 42 | // we don't need to add functions because we always return FUNCTION_ZERO |
| 43 | |
| 44 | addPredicate(0, FALSE); |
| 45 | addPredicate(0, TRUE); |
| 46 | addPredicate(1, FALSE); |
| 47 | addPredicate(1, TRUE); |
| 48 | addPredicate(2, FALSE); |
| 49 | addPredicate(2, TRUE); |
| 50 | addPredicate(3, FALSE); |
| 51 | addPredicate(3, TRUE); |
| 52 | |
| 53 | addPredicateConstant(new ModelPredicateConstant("in", 2), FALSE); |
| 54 | |
| 55 | } |
| 56 | |
| 57 | public String getDescription() { |
| 58 | return "This model has only one entity. The \" is element of\" relation is never fullfilled."; |
| 59 | } |
| 60 | |
| 61 | public int getFunctionSize(final int size) { |
| 62 | return 1; |
| 63 | } |
| 64 | |
| 65 | public Function getFunction(final int size, final int number) { |
| 66 | return FUNCTION_ZERO; |
| 67 | } |
| 68 | |
| 69 | public Function getFunctionConstant(final ModelFunctionConstant con) { |
| 70 | return FUNCTION_ZERO; |
| 71 | } |
| 72 | |
| 73 | public Entity comprehension(final Entity[] array) { |
| 74 | return ZERO; |
| 75 | } |
| 76 | |
| 77 | } |