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Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
FormulaVo.java | 100% | 100% | 100% | 100% |
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1 | /* $Id: FormulaOrTermVo.java,v 1.5 2006/10/20 20:23:01 m31 Exp $ | |
2 | * | |
3 | * This file is part of the project "Hilbert II" - http://www.qedeq.org | |
4 | * | |
5 | * Copyright 2000-2006, Michael Meyling <mime@qedeq.org>. | |
6 | * | |
7 | * "Hilbert II" is free software; you can redistribute | |
8 | * it and/or modify it under the terms of the GNU General Public | |
9 | * License as published by the Free Software Foundation; either | |
10 | * version 2 of the License, or (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | */ | |
17 | ||
18 | package org.qedeq.kernel.dto.module; | |
19 | ||
20 | import org.qedeq.kernel.base.list.Element; | |
21 | import org.qedeq.kernel.base.module.Formula; | |
22 | import org.qedeq.kernel.utility.EqualsUtility; | |
23 | ||
24 | ||
25 | /** | |
26 | * Wraps a formula. Such an object is build out of | |
27 | * {@link org.qedeq.kernel.base.list.Element}s. | |
28 | * | |
29 | * @version $Revision: 1.5 $ | |
30 | * @author Michael Meyling | |
31 | */ | |
32 | public final class FormulaVo implements Formula { | |
33 | ||
34 | /** Formula. */ | |
35 | private Element element; | |
36 | ||
37 | /** | |
38 | * Constructs a formula. | |
39 | * | |
40 | * @param element Element that should be a formula. | |
41 | */ | |
42 | 276 | public FormulaVo(final Element element) { |
43 | 276 | this.element = element; |
44 | } | |
45 | ||
46 | /** | |
47 | * Empty constructor. | |
48 | */ | |
49 | 419 | public FormulaVo() { |
50 | // nothing to do | |
51 | } | |
52 | ||
53 | /** | |
54 | * Set formula. | |
55 | * | |
56 | * @param element Formula. | |
57 | */ | |
58 | 411 | public final void setElement(final Element element) { |
59 | 411 | this.element = element; |
60 | } | |
61 | ||
62 | 2591 | public final Element getElement() { |
63 | 2591 | return element; |
64 | } | |
65 | ||
66 | 271 | public boolean equals(final Object obj) { |
67 | 271 | if (!(obj instanceof FormulaVo)) { |
68 | 11 | return false; |
69 | } | |
70 | 260 | final FormulaVo other = (FormulaVo) obj; |
71 | 260 | return EqualsUtility.equals(getElement(), other.getElement()); |
72 | } | |
73 | ||
74 | 259 | public int hashCode() { |
75 | 259 | return (getElement() != null ? getElement().hashCode() : 0); |
76 | } | |
77 | ||
78 | 182 | public String toString() { |
79 | 182 | if (getElement() != null) { |
80 | 170 | return getElement().toString(); |
81 | } | |
82 | 12 | return ""; |
83 | } | |
84 | ||
85 | } |
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