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| <div class="title">FieldScoreQuery.cs</div> </div> |
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| <a href="_field_score_query_8cs.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* </span></div> |
| <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one or more</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * contributor license agreements. See the NOTICE file distributed with</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * this work for additional information regarding copyright ownership.</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * The ASF licenses this file to You under the Apache License, Version 2.0</span></div> |
| <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * (the "License"); you may not use this file except in compliance with</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * the License. You may obtain a copy of the License at</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * Unless required by applicable law or agreed to in writing, software</span></div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</span></div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * See the License for the specific language governing permissions and</span></div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * limitations under the License.</span></div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">using</span> System;</div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">namespace </span>Lucene.Net.Search.Function</div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> {</div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  </div> |
| <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  [Serializable]</div> |
| <div class="line"><a name="l00063"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_field_score_query.html"> 63</a></span>  <span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_field_score_query.html" title="A query that scores each document as the value of the numeric input field. The query matches all docu...">FieldScoreQuery</a>:<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_value_source_query.html" title="Expert: A Query that sets the scores of document to the values obtained from a ValueSource. This query provides a score for each and every undeleted document in the index. The value source can be based on a (cached) value of an indexed field, but it can also be based on an external source, e.g. values read from an external database. Score is set as: Score(doc,query) = query.getBoost()2 * valueSource(doc).">ValueSourceQuery</a></div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  {</div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  </div> |
| <div class="line"><a name="l00077"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_field_score_query_1_1_type.html"> 77</a></span>  <span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_field_score_query_1_1_type.html" title="Type of score field, indicating how field values are interpreted/parsed. The type selected at search ...">Type</a></div> |
| <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  {</div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  </div> |
| <div class="line"><a name="l00081"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_field_score_query_1_1_type.html#a19d455a56dcb987761f48be5a2c70734"> 81</a></span>  <span class="keyword">public</span> <span class="keyword">static</span> readonly <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_field_score_query_1_1_type.html" title="Type of score field, indicating how field values are interpreted/parsed. The type selected at search ...">Type</a> BYTE = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_field_score_query_1_1_type.html" title="Type of score field, indicating how field values are interpreted/parsed. The type selected at search ...">Type</a>(<span class="stringliteral">"byte"</span>);</div> |
| <div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  </div> |
| <div class="line"><a name="l00084"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_field_score_query_1_1_type.html#a0660831879e37f62039b8f6d818cbb55"> 84</a></span>  <span class="keyword">public</span> <span class="keyword">static</span> readonly <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_field_score_query_1_1_type.html" title="Type of score field, indicating how field values are interpreted/parsed. The type selected at search ...">Type</a> SHORT = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_field_score_query_1_1_type.html" title="Type of score field, indicating how field values are interpreted/parsed. The type selected at search ...">Type</a>(<span class="stringliteral">"short"</span>);</div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  </div> |
| <div class="line"><a name="l00087"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_field_score_query_1_1_type.html#a0bed4cfe167cec1b6fb0bd2c4f4dfb1e"> 87</a></span>  <span class="keyword">public</span> <span class="keyword">static</span> readonly <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_field_score_query_1_1_type.html" title="Type of score field, indicating how field values are interpreted/parsed. The type selected at search ...">Type</a> INT = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_field_score_query_1_1_type.html" title="Type of score field, indicating how field values are interpreted/parsed. The type selected at search ...">Type</a>(<span class="stringliteral">"int"</span>);</div> |
| <div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  </div> |
| <div class="line"><a name="l00090"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_field_score_query_1_1_type.html#a63d1ff19cf53472209bc4b1ad3745846"> 90</a></span>  <span class="keyword">public</span> <span class="keyword">static</span> readonly <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_field_score_query_1_1_type.html" title="Type of score field, indicating how field values are interpreted/parsed. The type selected at search ...">Type</a> FLOAT = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_field_score_query_1_1_type.html" title="Type of score field, indicating how field values are interpreted/parsed. The type selected at search ...">Type</a>(<span class="stringliteral">"float"</span>);</div> |
| <div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  </div> |
| <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keyword">private</span> System.String typeName;</div> |
| <div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keyword">internal</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_field_score_query_1_1_type.html" title="Type of score field, indicating how field values are interpreted/parsed. The type selected at search ...">Type</a>(System.String name)</div> |
| <div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  {</div> |
| <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  this.typeName = name;</div> |
| <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  }</div> |
| <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="comment">/*(non-Javadoc) <see cref="java.lang.Object.toString() */</span></div> |
| <div class="line"><a name="l00098"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_field_score_query_1_1_type.html#a8825229c3994b0fd9153f86d407fc78d"> 98</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> System.String ToString()</div> |
| <div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  {</div> |
| <div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordflow">return</span> GetType().FullName + <span class="stringliteral">"::"</span> + typeName;</div> |
| <div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  }</div> |
| <div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  }</div> |
| <div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  </div> |
| <div class="line"><a name="l00113"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_field_score_query.html#a7da7cbe77e3d3a7414745fb92224bbc1"> 113</a></span>  <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_field_score_query.html" title="A query that scores each document as the value of the numeric input field. The query matches all docu...">FieldScoreQuery</a>(System.String field, <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_field_score_query_1_1_type.html" title="Type of score field, indicating how field values are interpreted/parsed. The type selected at search ...">Type</a> type):base(GetValueSource(field, type))</div> |
| <div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  {</div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  }</div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  </div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="comment">// create the appropriate (cached) field value source. </span></div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keyword">private</span> <span class="keyword">static</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_value_source.html" title="Expert: source of values for basic function queries. At its default/simplest form, values - one per doc - are used as the score of that doc. Values are instantiated as DocValues for a particular reader. ValueSource implementations differ in RAM requirements: it would always be a factor of the number of documents, but for each document the number of bytes can be 1, 2, 4, or 8.">ValueSource</a> GetValueSource(System.String field, Type type)</div> |
| <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  {</div> |
| <div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">if</span> (type == Type.BYTE)</div> |
| <div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  {</div> |
| <div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_byte_field_source.html" title="Expert: obtains single byte field values from the FieldCache using getBytes() and makes those values ...">ByteFieldSource</a>(field);</div> |
| <div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  }</div> |
| <div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">if</span> (type == Type.SHORT)</div> |
| <div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  {</div> |
| <div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> ShortFieldSource(field);</div> |
| <div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  }</div> |
| <div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">if</span> (type == Type.INT)</div> |
| <div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  {</div> |
| <div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> IntFieldSource(field);</div> |
| <div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  }</div> |
| <div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">if</span> (type == Type.FLOAT)</div> |
| <div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  {</div> |
| <div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> FloatFieldSource(field);</div> |
| <div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  }</div> |
| <div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> System.ArgumentException(type + <span class="stringliteral">" is not a known Field Score Query Type!"</span>);</div> |
| <div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  }</div> |
| <div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  }</div> |
| <div class="line"><a name="l00139"></a><span class="lineno"> 139</span> }</div> |
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