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ListVisitor | Line # 28 | 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.se.visitor; | |
17 | ||
18 | import org.qedeq.kernel.se.base.list.Atom; | |
19 | import org.qedeq.kernel.se.base.list.ElementList; | |
20 | import org.qedeq.kernel.se.common.ModuleDataException; | |
21 | ||
22 | ||
23 | /** | |
24 | * Visit elements of the list package. | |
25 | * | |
26 | * @author Michael Meyling | |
27 | */ | |
28 | public interface ListVisitor { | |
29 | ||
30 | /** | |
31 | * Visit certain element. Begin of visit. | |
32 | * | |
33 | * @param atom Begin visit of this element. | |
34 | * @throws ModuleDataException Major problem occurred. | |
35 | */ | |
36 | public void visitEnter(Atom atom) throws ModuleDataException; | |
37 | ||
38 | /** | |
39 | * Visit certain element. Begin of visit. | |
40 | * | |
41 | * @param list Begin visit of this element. | |
42 | * @throws ModuleDataException Major problem occurred. | |
43 | */ | |
44 | public void visitEnter(ElementList list) throws ModuleDataException; | |
45 | ||
46 | /** | |
47 | * Visit certain element. End of visit. | |
48 | * | |
49 | * @param atom End visit of this element. | |
50 | * @throws ModuleDataException Major problem occurred. | |
51 | */ | |
52 | public void visitLeave(Atom atom) throws ModuleDataException; | |
53 | ||
54 | /** | |
55 | * Visit certain element. End of visit. | |
56 | * | |
57 | * @param list End visit of this element. | |
58 | * @throws ModuleDataException Major problem occurred. | |
59 | */ | |
60 | public void visitLeave(ElementList list) throws ModuleDataException; | |
61 | ||
62 | } |
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