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| <a href="_value_source_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> <span class="keyword">using</span> Lucene.Net.Index;</div> |
| <div class="line"><a name="l00020"></a><span class="lineno"><a class="code" href="_value_source_query_8cs.html#a2a6914ea10bbe06764856e29e5674e66"> 20</a></span> <span class="keyword">using</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_reader.html" title="IndexReader is an abstract class, providing an interface for accessing an index. Search of an index i...">IndexReader</a> = Lucene.Net.Index.IndexReader;</div> |
| <div class="line"><a name="l00021"></a><span class="lineno"><a class="code" href="_value_source_query_8cs.html#a058de2d1c801e53325f35357f213391f"> 21</a></span> <span class="keyword">using</span> <a class="code" href="interface_lucene_1_1_net_1_1_index_1_1_term_docs.html" title="TermDocs provides an interface for enumerating <document, frequency> pairs for a term. The document portion names each document containing the term. Documents are indicated by number. The frequency portion gives the number of times the term occurred in each document. The pairs are ordered by document number. ">TermDocs</a> = Lucene.Net.Index.TermDocs;</div> |
| <div class="line"><a name="l00022"></a><span class="lineno"><a class="code" href="_value_source_query_8cs.html#aeff40eaf34e2b78f761d305f48b95699"> 22</a></span> <span class="keyword">using</span> <a class="code" href="_boolean_query_8cs.html#aeff40eaf34e2b78f761d305f48b95699">ToStringUtils</a> = Lucene.Net.Util.ToStringUtils;</div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">using</span> Lucene.Net.Search;</div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">namespace </span>Lucene.Net.Search.Function</div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> {</div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  </div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  [Serializable]</div> |
| <div class="line"><a name="l00044"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_value_source_query.html"> 44</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_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>:<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_query.html" title="The abstract base class for queries. Instantiable subclasses are: TermQuery MultiTermQuery BooleanQ...">Query</a></div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  {</div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keyword">internal</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> valSrc;</div> |
| <div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  </div> |
| <div class="line"><a name="l00051"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_value_source_query.html#ae37b11533fb4188b755c1e840968e2d8"> 51</a></span>  <span class="keyword">public</span> <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>(<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> valSrc)</div> |
| <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  {</div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  this.valSrc = valSrc;</div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  }</div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  </div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="comment">/*(non-Javadoc) <see cref="Lucene.Net.Search.Query.rewrite(Lucene.Net.Index.IndexReader) */</span></div> |
| <div class="line"><a name="l00057"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_value_source_query.html#a582ddb08dbda3a74848b7caf5ebc0f1e"> 57</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_query.html" title="The abstract base class for queries. Instantiable subclasses are: TermQuery MultiTermQuery BooleanQ...">Query</a> Rewrite(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_reader.html" title="IndexReader is an abstract class, providing an interface for accessing an index. Search of an index i...">IndexReader</a> reader)</div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  {</div> |
| <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">return</span> <span class="keyword">this</span>;</div> |
| <div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  }</div> |
| <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  </div> |
| <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="comment">/*(non-Javadoc) <see cref="Lucene.Net.Search.Query.extractTerms(java.util.Set) */</span></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_value_source_query.html#aa88b655a781b4794f3cd51a129d3b019"> 63</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">void</span> ExtractTerms(System.Collections.Generic.ISet<<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term.html" title="A Term represents a word from text. This is the unit of search. It is composed of two elements...">Term</a>> terms)</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>  <span class="comment">// no terms involved here</span></div> |
| <div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  }</div> |
| <div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  </div> |
| <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  [Serializable]</div> |
| <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keyword">internal</span> <span class="keyword">class </span>ValueSourceWeight:<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_weight.html" title="Expert: Calculate query weights and build query scorers. The purpose of Weight is to ensure searching...">Weight</a></div> |
| <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  {</div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keyword">private</span> <span class="keywordtype">void</span> InitBlock(<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> enclosingInstance)</div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  {</div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  this.enclosingInstance = enclosingInstance;</div> |
| <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  }</div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keyword">private</span> ValueSourceQuery enclosingInstance;</div> |
| <div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keyword">public</span> ValueSourceQuery Enclosing_Instance</div> |
| <div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  {</div> |
| <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keyword">get</span></div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  {</div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordflow">return</span> enclosingInstance;</div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  }</div> |
| <div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  </div> |
| <div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  }</div> |
| <div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keyword">internal</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_similarity.html" title="Expert: Scoring API. Subclasses implement search scoring.">Similarity</a> similarity;</div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keyword">internal</span> <span class="keywordtype">float</span> queryNorm;</div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keyword">internal</span> <span class="keywordtype">float</span> queryWeight;</div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  </div> |
| <div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keyword">public</span> ValueSourceWeight(ValueSourceQuery enclosingInstance, <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_searcher.html" title="An abstract base class for search implementations. Implements the main search methods.">Searcher</a> searcher)</div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  {</div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  InitBlock(enclosingInstance);</div> |
| <div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  this.similarity = Enclosing_Instance.GetSimilarity(searcher);</div> |
| <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  }</div> |
| <div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  </div> |
| <div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="comment">/*(non-Javadoc) <see cref="Lucene.Net.Search.Weight.getQuery() */</span></div> |
| <div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div> |
| <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keyword">public</span> <span class="keyword">override</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_query.html" title="The abstract base class for queries. Instantiable subclasses are: TermQuery MultiTermQuery BooleanQ...">Query</a> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_query.html" title="The abstract base class for queries. Instantiable subclasses are: TermQuery MultiTermQuery BooleanQ...">Query</a></div> |
| <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  {</div> |
| <div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keyword">get</span> { <span class="keywordflow">return</span> Enclosing_Instance; }</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> </div> |
| <div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="comment">/*(non-Javadoc) <see cref="Lucene.Net.Search.Weight.getValue() */</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>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">float</span> Value</div> |
| <div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  {</div> |
| <div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keyword">get</span> { <span class="keywordflow">return</span> queryWeight; }</div> |
| <div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  }</div> |
| <div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div> |
| <div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="comment">/*(non-Javadoc) <see cref="Lucene.Net.Search.Weight.sumOfSquaredWeights() */</span></div> |
| <div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div> |
| <div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">float</span> GetSumOfSquaredWeights()</div> |
| <div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  {</div> |
| <div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  queryWeight = Enclosing_Instance.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_query.html#a2a58b600e864bed65cc21815fffa0218" title="Gets or sets the boost for this query clause to b. Documents matching this clause will (in addition t...">Boost</a>;</div> |
| <div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keywordflow">return</span> queryWeight*queryWeight;</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>  <span class="comment">/*(non-Javadoc) <see cref="Lucene.Net.Search.Weight.normalize(float) */</span></div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">void</span> Normalize(<span class="keywordtype">float</span> norm)</div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  {</div> |
| <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  this.queryNorm = norm;</div> |
| <div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  queryWeight *= this.queryNorm;</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>  </div> |
| <div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keyword">public</span> <span class="keyword">override</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_scorer.html" title="Expert: Common scoring functionality for different types of queries.">Scorer</a> <a class="code" href="_documents_writer_8cs.html#a83f1a9bf052559c9fc4b5dc2c3d490f1">Scorer</a>(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_reader.html" title="IndexReader is an abstract class, providing an interface for accessing an index. Search of an index i...">IndexReader</a> reader, <span class="keywordtype">bool</span> scoreDocsInOrder, <span class="keywordtype">bool</span> topScorer)</div> |
| <div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  {</div> |
| <div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> ValueSourceScorer(enclosingInstance, similarity, reader, <span class="keyword">this</span>);</div> |
| <div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  }</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="comment">/*(non-Javadoc) <see cref="Lucene.Net.Search.Weight.explain(Lucene.Net.Index.IndexReader, int) */</span></div> |
| <div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keyword">public</span> <span class="keyword">override</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html" title="Expert: Describes the score computation for document and query. ">Explanation</a> Explain(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_reader.html" title="IndexReader is an abstract class, providing an interface for accessing an index. Search of an index i...">IndexReader</a> reader, <span class="keywordtype">int</span> doc)</div> |
| <div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  {</div> |
| <div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  DocValues vals = enclosingInstance.valSrc.GetValues(reader);</div> |
| <div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordtype">float</span> sc = queryWeight*vals.FloatVal(doc);</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>  <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html" title="Expert: Describes the score computation for document and query. ">Explanation</a> result = <span class="keyword">new</span> <a class="code" href="_custom_score_query_8cs.html#aaff36a95cdad7bc1affaff3241d83f90">ComplexExplanation</a>(<span class="keyword">true</span>, sc, enclosingInstance.ToString() + <span class="stringliteral">", product of:"</span>)</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>  result.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html#a61e84f9a277600115dbc3457ca276abd" title="Adds a sub-node to this explanation node. ">AddDetail</a>(vals.Explain(doc));</div> |
| <div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  result.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html#a61e84f9a277600115dbc3457ca276abd" title="Adds a sub-node to this explanation node. ">AddDetail</a>(<span class="keyword">new</span> <a class="code" href="_custom_score_query_8cs.html#aea5b3dcb7c8a52294feb57dcaa878033">Explanation</a>(enclosingInstance.Boost, <span class="stringliteral">"boost"</span>));</div> |
| <div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  result.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html#a61e84f9a277600115dbc3457ca276abd" title="Adds a sub-node to this explanation node. ">AddDetail</a>(<span class="keyword">new</span> <a class="code" href="_custom_score_query_8cs.html#aea5b3dcb7c8a52294feb57dcaa878033">Explanation</a>(queryNorm, <span class="stringliteral">"queryNorm"</span>));</div> |
| <div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">return</span> result;</div> |
| <div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  }</div> |
| <div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  }</div> |
| <div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  </div> |
| <div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keyword">private</span> <span class="keyword">class </span>ValueSourceScorer : <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_scorer.html" title="Expert: Common scoring functionality for different types of queries.">Scorer</a></div> |
| <div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  {</div> |
| <div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keyword">private</span> <span class="keywordtype">void</span> InitBlock(ValueSourceQuery enclosingInstance)</div> |
| <div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  {</div> |
| <div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  this.enclosingInstance = enclosingInstance;</div> |
| <div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  }</div> |
| <div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keyword">private</span> ValueSourceQuery enclosingInstance;</div> |
| <div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keyword">public</span> ValueSourceQuery Enclosing_Instance</div> |
| <div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  {</div> |
| <div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keyword">get</span></div> |
| <div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  {</div> |
| <div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">return</span> enclosingInstance;</div> |
| <div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  }</div> |
| <div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div> |
| <div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  }</div> |
| <div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keyword">private</span> ValueSourceWeight weight;</div> |
| <div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keyword">private</span> <span class="keywordtype">float</span> qWeight;</div> |
| <div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keyword">private</span> DocValues vals;</div> |
| <div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keyword">private</span> <a class="code" href="interface_lucene_1_1_net_1_1_index_1_1_term_docs.html" title="TermDocs provides an interface for enumerating <document, frequency> pairs for a term. The document portion names each document containing the term. Documents are indicated by number. The frequency portion gives the number of times the term occurred in each document. The pairs are ordered by document number. ">TermDocs</a> termDocs;</div> |
| <div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keyword">private</span> <span class="keywordtype">int</span> doc = -1;</div> |
| <div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div> |
| <div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="comment">// constructor</span></div> |
| <div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keyword">internal</span> ValueSourceScorer(ValueSourceQuery enclosingInstance, <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_similarity.html" title="Expert: Scoring API. Subclasses implement search scoring.">Similarity</a> similarity, <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_reader.html" title="IndexReader is an abstract class, providing an interface for accessing an index. Search of an index i...">IndexReader</a> reader, ValueSourceWeight w)</div> |
| <div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  : base(similarity)</div> |
| <div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  {</div> |
| <div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  InitBlock(enclosingInstance);</div> |
| <div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  this.weight = w;</div> |
| <div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  this.qWeight = w.Value;</div> |
| <div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="comment">// this is when/where the values are first created.</span></div> |
| <div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  vals = Enclosing_Instance.valSrc.GetValues(reader);</div> |
| <div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  termDocs = reader.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_reader.html#acbbce30c73e871a7cf5c151ee0c775b9" title="Returns an enumeration of all the documents which contain term. For each document, the document number, the frequency of the term in that document is also provided, for use in search scoring. If term is null, then all non-deleted docs are returned with freq=1. Thus, this method implements the mapping: &#160;&#160; => &#160;&#160; <docNum, freq>* The enumeration is ordered by document number. Each document number is greater than all that precede it in the enumeration. ">TermDocs</a>(null);</div> |
| <div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  }</div> |
| <div class="line"><a name="l00180"></a><span class="lineno"> 180</span> </div> |
| <div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">int</span> NextDoc()</div> |
| <div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  {</div> |
| <div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordflow">return</span> doc = termDocs.<a class="code" href="interface_lucene_1_1_net_1_1_index_1_1_term_docs.html#a5a07b58ff92edf95aff4fbc264eb12e7" title="Moves to the next pair in the enumeration. Returns true iff there is such a next pair in the enumerat...">Next</a>() ? termDocs.Doc : NO_MORE_DOCS;</div> |
| <div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  }</div> |
| <div class="line"><a name="l00185"></a><span class="lineno"> 185</span> </div> |
| <div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">int</span> DocID()</div> |
| <div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  {</div> |
| <div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">return</span> doc;</div> |
| <div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  }</div> |
| <div class="line"><a name="l00190"></a><span class="lineno"> 190</span> </div> |
| <div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">int</span> Advance(<span class="keywordtype">int</span> target)</div> |
| <div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  {</div> |
| <div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">return</span> doc = termDocs.SkipTo(target) ? termDocs.Doc : NO_MORE_DOCS;</div> |
| <div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  }</div> |
| <div class="line"><a name="l00195"></a><span class="lineno"> 195</span> </div> |
| <div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="comment">/*(non-Javadoc) <see cref="Lucene.Net.Search.Scorer.explain(int) */</span></div> |
| <div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">float</span> Score()</div> |
| <div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  {</div> |
| <div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordflow">return</span> qWeight * vals.FloatVal(termDocs.Doc);</div> |
| <div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  }</div> |
| <div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  }</div> |
| <div class="line"><a name="l00202"></a><span class="lineno"> 202</span> </div> |
| <div class="line"><a name="l00203"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_value_source_query.html#a52a0214cfa53bca22bf9871ad192fbc5"> 203</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_weight.html" title="Expert: Calculate query weights and build query scorers. The purpose of Weight is to ensure searching...">Weight</a> CreateWeight(<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_searcher.html" title="An abstract base class for search implementations. Implements the main search methods.">Searcher</a> searcher)</div> |
| <div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  {</div> |
| <div class="line"><a name="l00205"></a><span class="lineno"> 205</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_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>.ValueSourceWeight(<span class="keyword">this</span>, searcher);</div> |
| <div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  }</div> |
| <div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  </div> |
| <div class="line"><a name="l00208"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_value_source_query.html#a07fbd5b6d76802b523a66df87d04112d"> 208</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> System.String ToString(System.String field)</div> |
| <div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  {</div> |
| <div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keywordflow">return</span> valSrc.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_value_source_query.html#a07fbd5b6d76802b523a66df87d04112d" title="Prints a query to a string, with field assumed to be the default field and omitted. The representation used is one that is supposed to be readable by QueryParser. However, there are the following limitations: If the query was created by the parser, the printed representation may not be exactly what was parsed. For example, characters that need to be escaped will be represented without the required backslash. Some of the more complicated queries (e.g. span queries) don't have a representation that can be parsed by QueryParser. ">ToString</a>() + <a class="code" href="_boolean_query_8cs.html#aeff40eaf34e2b78f761d305f48b95699">ToStringUtils</a>.Boost(Boost);</div> |
| <div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  }</div> |
| <div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  </div> |
| <div class="line"><a name="l00214"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_value_source_query.html#a65cd9f03a8c2c6c46427eb9fb1920c3c"> 214</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">bool</span> Equals(System.Object o)</div> |
| <div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  {</div> |
| <div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="keywordflow">if</span> (GetType() != o.GetType())</div> |
| <div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  {</div> |
| <div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  }</div> |
| <div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <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> other = (<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>) o;</div> |
| <div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keywordflow">return</span> this.Boost == other.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_query.html#a2a58b600e864bed65cc21815fffa0218" title="Gets or sets the boost for this query clause to b. Documents matching this clause will (in addition t...">Boost</a> && this.valSrc.Equals(other.valSrc);</div> |
| <div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  }</div> |
| <div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  </div> |
| <div class="line"><a name="l00225"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_value_source_query.html#a7f1a2a5b13e425af8014a6a838eeaa57"> 225</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">int</span> GetHashCode()</div> |
| <div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  {</div> |
| <div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keywordflow">return</span> (GetType().GetHashCode() + valSrc.GetHashCode()) ^ BitConverter.ToInt32(BitConverter.GetBytes(Boost), 0);</div> |
| <div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  }</div> |
| <div class="line"><a name="l00229"></a><span class="lineno"> 229</span> </div> |
| <div class="line"><a name="l00230"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_function_1_1_value_source_query.html#ac598502932be437b5493de8e0ffc012c"> 230</a></span>  <span class="keyword">override</span> <span class="keyword">public</span> System.Object Clone()</div> |
| <div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  {</div> |
| <div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordflow">return</span> this.MemberwiseClone();</div> |
| <div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  }</div> |
| <div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  }</div> |
| <div class="line"><a name="l00235"></a><span class="lineno"> 235</span> }</div> |
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