1 | /** |
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2 | * This software is copyright (c) 2013-2022 by |
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3 | * - Leibniz-Institut fuer Deutsche Sprache (http://www.ids-mannheim.de) |
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4 | * This is free software. You can redistribute it |
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5 | * and/or modify it under the terms described in |
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6 | * the GNU General Public License v3 of which you |
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7 | * should have received a copy. Otherwise you can download |
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8 | * it from |
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9 | * |
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10 | * http://www.gnu.org/licenses/gpl-3.0.txt |
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11 | * |
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12 | * @copyright Leibniz-Institut fuer Deutsche Sprache (http://www.ids-mannheim.de) |
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13 | * |
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14 | * @license http://www.gnu.org/licenses/gpl-3.0.txt |
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15 | * GNU General Public License v3 |
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16 | */ |
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17 | package eu.clarin.sru.server.fcs.parser; |
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18 | |
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19 | |
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20 | /** |
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21 | * Interface implementing a Visitor pattern for FCS-QL expression trees. |
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22 | */ |
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23 | public interface QueryVisitor { |
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24 | /** |
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25 | * Visit a <em>segment</em> query node. |
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26 | * |
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27 | * @param node |
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28 | * the node to visit |
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29 | */ |
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30 | public void visit(QuerySegment node); |
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31 | |
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32 | |
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33 | /** |
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34 | * Visit a <em>group</em> query node. |
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35 | * |
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36 | * @param node |
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37 | * the node to visit |
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38 | */ |
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39 | public void visit(QueryGroup node); |
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40 | |
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41 | |
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42 | /** |
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43 | * Visit a <em>sequence</em> query node. |
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44 | * |
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45 | * @param node |
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46 | * the node to visit |
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47 | */ |
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48 | public void visit(QuerySequence node); |
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49 | |
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50 | |
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51 | /** |
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52 | * Visit a <em>or</em> query node. |
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53 | * |
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54 | * @param node |
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55 | * the node to visit |
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56 | */ |
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57 | public void visit(QueryDisjunction node); |
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58 | |
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59 | |
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60 | /** |
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61 | * Visit a <em>query</em> with within node. |
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62 | * |
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63 | * @param node |
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64 | * the node to visit |
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65 | */ |
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66 | public void visit(QueryWithWithin node); |
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67 | |
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68 | |
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69 | /** |
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70 | * Visit a <em>simple</em> expression node. |
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71 | * |
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72 | * @param node |
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73 | * the node to visit |
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74 | */ |
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75 | public void visit(Expression node); |
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76 | |
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77 | |
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78 | /** |
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79 | * Visit a <em>wildcard</em> expression node. |
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80 | * |
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81 | * @param node |
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82 | * the node to visit |
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83 | */ |
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84 | public void visit(ExpressionWildcard node); |
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85 | |
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86 | |
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87 | /** |
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88 | * Visit a <em>group</em> expression node. |
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89 | * |
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90 | * @param node |
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91 | * the node to visit |
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92 | */ |
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93 | public void visit(ExpressionGroup node); |
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94 | |
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95 | |
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96 | /** |
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97 | * Visit a <em>or</em> expression node. |
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98 | * |
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99 | * @param node |
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100 | * the node to visit |
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101 | */ |
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102 | public void visit(ExpressionOr node); |
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103 | |
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104 | |
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105 | /** |
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106 | * Visit a <em>and</em> expression node. |
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107 | * |
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108 | * @param node |
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109 | * the node to visit |
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110 | */ |
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111 | public void visit(ExpressionAnd node); |
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112 | |
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113 | |
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114 | /** |
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115 | * Visit a <em>not</em> expression node. |
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116 | * |
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117 | * @param node |
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118 | * the node to visit |
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119 | */ |
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120 | public void visit(ExpressionNot node); |
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121 | |
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122 | |
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123 | /** |
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124 | * Visit a <em>simple within</em> node. |
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125 | * |
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126 | * @param node |
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127 | * the node to visit |
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128 | */ |
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129 | public void visit(SimpleWithin node); |
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130 | |
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131 | } // interface QueryVisitor |
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