 | Report generated by Clover Code Coverage v3.1.10 Fri May 24 2013 13:47:32 UTC. |
Clover: Open Source License registered to qedeq.org . |
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| FormulaChecker | Line # 26 | 0 | 0 | - |
-1.0
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| 1 | /* This file is part of the project "Hilbert II" - http://www.qedeq.org | |
| 2 | * | |
| 3 | * Copyright 2000-2013, 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.common; | |
| 17 | ||
| 18 | import org.qedeq.kernel.se.base.list.Element; | |
| 19 | import org.qedeq.kernel.se.common.ModuleContext; | |
| 20 | ||
| 21 | /** | |
| 22 | * A formula checker can check logical correctness of a formula or term. | |
| 23 | * | |
| 24 | * @author Michael Meyling | |
| 25 | */ | |
| 26 | public interface FormulaChecker { | |
| 27 | ||
| 28 | /** | |
| 29 | * Checks if an {@link Element} is a formula. If there are any errors the returned list | |
| 30 | * (which is always not <code>null</code>) has a size greater zero. | |
| 31 | * | |
| 32 | * @param element Check this element. | |
| 33 | * @param context For location information. Important for locating errors. | |
| 34 | * @param existenceChecker Existence checker for operators. | |
| 35 | * @return Collected errors if there are any. Not <code>null</code>. | |
| 36 | */ | |
| 37 | public LogicalCheckExceptionList checkFormula(final Element element, | |
| 38 | final ModuleContext context, final ExistenceChecker existenceChecker); | |
| 39 | ||
| 40 | /** | |
| 41 | * Checks if an {@link Element} is a formula. All predicates and functions are assumed to exist. | |
| 42 | * If there are any errors the returned list (which is always not <code>null</code>) has a size | |
| 43 | * greater zero. | |
| 44 | * If the existence context is known you should use | |
| 45 | * {@link #checkFormula(Element, ModuleContext, ExistenceChecker)}. | |
| 46 | * | |
| 47 | * @param element Check this element. | |
| 48 | * @param context For location information. Important for locating errors. | |
| 49 | * @return Collected errors if there are any. Not <code>null</code>. | |
| 50 | */ | |
| 51 | public LogicalCheckExceptionList checkFormula(final Element element, | |
| 52 | final ModuleContext context); | |
| 53 | ||
| 54 | /** | |
| 55 | * Check if {@link Element} is a term. If there are any errors the returned list | |
| 56 | * (which is always not <code>null</code>) has a size greater zero. | |
| 57 | * | |
| 58 | * @param element Check this element. | |
| 59 | * @param context For location information. Important for locating errors. | |
| 60 | * @param existenceChecker Existence checker for operators. | |
| 61 | * @return Collected errors if there are any. Not <code>null</code>. | |
| 62 | */ | |
| 63 | public LogicalCheckExceptionList checkTerm(final Element element, | |
| 64 | final ModuleContext context, final ExistenceChecker existenceChecker); | |
| 65 | ||
| 66 | /** | |
| 67 | * Check if {@link Element} is a term. If there are any errors the returned list | |
| 68 | * (which is always not <code>null</code>) has a size greater zero. | |
| 69 | * If the existence context is known you should use | |
| 70 | * {@link #checkTerm(Element, ModuleContext, ExistenceChecker)}. | |
| 71 | * | |
| 72 | * @param element Check this element. | |
| 73 | * @param context For location information. Important for locating errors. | |
| 74 | * @return Collected errors if there are any. Not <code>null</code>. | |
| 75 | */ | |
| 76 | public LogicalCheckExceptionList checkTerm(final Element element, | |
| 77 | final ModuleContext context); | |
| 78 | ||
| 79 | } | |
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