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1 /* |
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2 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 #ifndef QUERYPARSER_H_ |
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20 #define QUERYPARSER_H_ |
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21 |
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22 #include <memory> |
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23 |
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24 #include "CLucene.h" |
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25 #include "CLucene/queryParser/MultiFieldQueryParser.h" |
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26 |
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27 #include "prefixopt.h" |
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28 |
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29 #include "cpixsearch.h" |
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30 |
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31 namespace Cpix { |
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32 |
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33 class IQueryParser { |
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34 |
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35 public: |
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36 |
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37 virtual ~IQueryParser(); |
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38 |
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39 virtual std::auto_ptr<lucene::search::Query> parse(const wchar_t* query) = 0; |
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40 |
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41 // Not really a fundamental property of a query parser: |
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42 virtual const wchar_t* getField() const = 0; |
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43 |
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44 virtual void setDefaultOperator(cpix_QP_Operator op) = 0; |
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45 }; |
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46 |
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47 class CLuceneQueryParser : public IQueryParser { |
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48 |
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49 public: |
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50 |
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51 ~CLuceneQueryParser(); |
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52 |
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53 CLuceneQueryParser(const wchar_t* field, lucene::analysis::Analyzer& analyzer); |
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54 |
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55 virtual std::auto_ptr<lucene::search::Query> parse(const wchar_t* query); |
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56 |
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57 virtual const wchar_t* getField() const; |
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58 |
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59 virtual void setDefaultOperator(cpix_QP_Operator op); |
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60 |
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61 private: |
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62 |
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63 std::auto_ptr<lucene::queryParser::QueryParser> parser_; |
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64 |
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65 }; |
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66 |
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67 class CLuceneMultiFieldQueryParser : public IQueryParser { |
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68 |
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69 public: |
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70 |
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71 ~CLuceneMultiFieldQueryParser(); |
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72 |
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73 CLuceneMultiFieldQueryParser(const wchar_t** fields, |
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74 lucene::analysis::Analyzer& analyzer, |
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75 lucene::queryParser::BoostMap& boostMap); |
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76 |
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77 virtual std::auto_ptr<lucene::search::Query> parse(const wchar_t* query); |
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78 |
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79 virtual const wchar_t* getField() const; |
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80 |
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81 virtual void setDefaultOperator(cpix_QP_Operator op); |
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82 |
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83 private: |
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84 |
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85 std::auto_ptr<lucene::queryParser::QueryParser> parser_; |
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86 |
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87 }; |
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88 |
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89 |
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90 class PrefixOptQueryParser : public IQueryParser { |
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91 |
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92 public: |
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93 |
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94 PrefixOptQueryParser(std::auto_ptr<IQueryParser> parser); |
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95 |
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96 ~PrefixOptQueryParser(); |
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97 |
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98 virtual std::auto_ptr<lucene::search::Query> parse(const wchar_t* query); |
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99 |
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100 virtual const wchar_t* getField() const; |
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101 |
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102 virtual void setDefaultOperator(cpix_QP_Operator op); |
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103 |
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104 private: |
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105 |
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106 PrefixOptQueryRewriter prefixOpt_; |
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107 |
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108 std::auto_ptr<IQueryParser> parser_; |
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109 |
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110 }; |
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111 |
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112 // |
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113 // Following factory methods apply necessary optimization wraps |
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114 // over the query parsers. |
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115 // |
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116 |
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117 |
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118 IQueryParser* CreateCLuceneQueryParser(const wchar_t* defaultField, |
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119 lucene::analysis::Analyzer* analyzer); |
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120 |
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121 IQueryParser* CreateCLuceneMultiFieldQueryParser( |
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122 const wchar_t* fields[], |
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123 lucene::analysis::Analyzer* analyzer, |
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124 lucene::queryParser::BoostMap* boostMap); |
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125 |
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126 IQueryParser* CreatePrefixQueryParser(const wchar_t* field); |
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127 |
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128 } |
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129 |
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130 #endif /* QUERYPARSER_H_ */ |