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| <div class="title">TermQuery.cs</div> </div> |
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| <a href="_term_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"><a class="code" href="_term_query_8cs.html#a2a6914ea10bbe06764856e29e5674e66"> 20</a></span> <span class="keyword">using</span> <a class="code" href="_more_like_this_8cs.html#a2a6914ea10bbe06764856e29e5674e66">IndexReader</a> = Lucene.Net.Index.IndexReader;</div> |
| <div class="line"><a name="l00021"></a><span class="lineno"><a class="code" href="_term_query_8cs.html#a8797eb30ce21b31829d3e3a43a20e3b9"> 21</a></span> <span class="keyword">using</span> <a class="code" href="_more_like_this_8cs.html#a8797eb30ce21b31829d3e3a43a20e3b9">Term</a> = Lucene.Net.Index.Term;</div> |
| <div class="line"><a name="l00022"></a><span class="lineno"><a class="code" href="_term_query_8cs.html#a058de2d1c801e53325f35357f213391f"> 22</a></span> <span class="keyword">using</span> <a class="code" href="_field_cache_impl_8cs.html#a058de2d1c801e53325f35357f213391f">TermDocs</a> = Lucene.Net.Index.TermDocs;</div> |
| <div class="line"><a name="l00023"></a><span class="lineno"><a class="code" href="_term_query_8cs.html#aeff40eaf34e2b78f761d305f48b95699"> 23</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="l00024"></a><span class="lineno"><a class="code" href="_term_query_8cs.html#a6210369909e0fef392bc63926b45beaf"> 24</a></span> <span class="keyword">using</span> <a class="code" href="_phrase_query_8cs.html#a6210369909e0fef392bc63926b45beaf">IDFExplanation</a> = Lucene.Net.Search.Explanation.IDFExplanation;</div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">namespace </span>Lucene.Net.Search</div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> {</div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  </div> |
| <div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  [Serializable]</div> |
| <div class="line"><a name="l00033"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_term_query.html"> 33</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_term_query.html" title="A Query that matches documents containing a term. This may be combined with other terms with a Boolea...">TermQuery</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="l00034"></a><span class="lineno"> 34</span>  {</div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keyword">private</span> <a class="code" href="_more_like_this_8cs.html#a8797eb30ce21b31829d3e3a43a20e3b9">Term</a> term;</div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  </div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  [Serializable]</div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">private</span> <span class="keyword">class </span>TermWeight:<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="l00039"></a><span class="lineno"> 39</span>  {</div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</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_term_query.html" title="A Query that matches documents containing a term. This may be combined with other terms with a Boolea...">TermQuery</a> enclosingInstance)</div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  {</div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  this.enclosingInstance = enclosingInstance;</div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  }</div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keyword">private</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_term_query.html" title="A Query that matches documents containing a term. This may be combined with other terms with a Boolea...">TermQuery</a> enclosingInstance;</div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_term_query.html" title="A Query that matches documents containing a term. This may be combined with other terms with a Boolea...">TermQuery</a> Enclosing_Instance</div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  {</div> |
| <div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">get</span></div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  {</div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">return</span> enclosingInstance;</div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  }</div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  </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>  <span class="keyword">private</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="l00054"></a><span class="lineno"> 54</span>  <span class="keyword">private</span> <span class="keywordtype">float</span> value_Renamed;</div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">private</span> <span class="keywordtype">float</span> idf;</div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keyword">private</span> <span class="keywordtype">float</span> queryNorm;</div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keyword">private</span> <span class="keywordtype">float</span> queryWeight;</div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">private</span> <a class="code" href="_phrase_query_8cs.html#a6210369909e0fef392bc63926b45beaf">IDFExplanation</a> idfExp;</div> |
| <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  </div> |
| <div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">public</span> TermWeight(<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_term_query.html" title="A Query that matches documents containing a term. This may be combined with other terms with a Boolea...">TermQuery</a> 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="l00061"></a><span class="lineno"> 61</span>  {</div> |
| <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  InitBlock(enclosingInstance);</div> |
| <div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  this.similarity = Enclosing_Instance.GetSimilarity(searcher);</div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  idfExp = similarity.IdfExplain(Enclosing_Instance.term, searcher);</div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  idf = idfExp.Idf;</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>  <span class="keyword">public</span> <span class="keyword">override</span> System.String ToString()</div> |
| <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  {</div> |
| <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">return</span> <span class="stringliteral">"weight("</span> + Enclosing_Instance + <span class="stringliteral">")"</span>;</div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  }</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>  <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="l00074"></a><span class="lineno"> 74</span>  {</div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keyword">get</span> { <span class="keywordflow">return</span> Enclosing_Instance; }</div> |
| <div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  }</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">public</span> <span class="keyword">override</span> <span class="keywordtype">float</span> Value</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="keyword">get</span> { <span class="keywordflow">return</span> value_Renamed; }</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>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">float</span> GetSumOfSquaredWeights()</div> |
| <div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  {</div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  queryWeight = idf*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>; <span class="comment">// compute query weight</span></div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">return</span> queryWeight*queryWeight; <span class="comment">// square it</span></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> </div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">void</span> Normalize(<span class="keywordtype">float</span> queryNorm)</div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  {</div> |
| <div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  this.queryNorm = queryNorm;</div> |
| <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  queryWeight *= queryNorm; <span class="comment">// normalize query weight</span></div> |
| <div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  value_Renamed = queryWeight * idf; <span class="comment">// idf for document</span></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>  </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_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="_more_like_this_8cs.html#a2a6914ea10bbe06764856e29e5674e66">IndexReader</a> reader, <span class="keywordtype">bool</span> scoreDocsInOrder, <span class="keywordtype">bool</span> topScorer)</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>  <a class="code" href="_field_cache_impl_8cs.html#a058de2d1c801e53325f35357f213391f">TermDocs</a> termDocs = reader.TermDocs(Enclosing_Instance.term);</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">if</span> (termDocs == null)</div> |
| <div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">return</span> null;</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="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_term_scorer.html" title="Expert: A Scorer for documents matching a Term.">TermScorer</a>(<span class="keyword">this</span>, termDocs, similarity, reader.Norms(Enclosing_Instance.term.Field));</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>  </div> |
| <div class="line"><a name="l00106"></a><span class="lineno"> 106</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="_more_like_this_8cs.html#a2a6914ea10bbe06764856e29e5674e66">IndexReader</a> reader, <span class="keywordtype">int</span> doc)</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>  </div> |
| <div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_complex_explanation.html" title="Expert: Describes the score computation for document and query, and can distinguish a match independe...">ComplexExplanation</a> result = <span class="keyword">new</span> <a class="code" href="_custom_score_query_8cs.html#aaff36a95cdad7bc1affaff3241d83f90">ComplexExplanation</a>();</div> |
| <div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  result.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html#a6ea561368bd5826af73342c3fe2e5eb5" title="A description of this explanation node. ">Description</a> = <span class="stringliteral">"weight("</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> + <span class="stringliteral">" in "</span> + doc + <span class="stringliteral">"), product of:"</span>;</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>  <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> expl = <span class="keyword">new</span> <a class="code" href="_custom_score_query_8cs.html#aea5b3dcb7c8a52294feb57dcaa878033">Explanation</a>(idf, idfExp.Explain());</div> |
| <div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  </div> |
| <div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="comment">// explain query weight</span></div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</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> queryExpl = <span class="keyword">new</span> <a class="code" href="_custom_score_query_8cs.html#aea5b3dcb7c8a52294feb57dcaa878033">Explanation</a>();</div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  queryExpl.Description = <span class="stringliteral">"queryWeight("</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> + <span class="stringliteral">"), product of:"</span>;</div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  </div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</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> boostExpl = <span class="keyword">new</span> <a class="code" href="_custom_score_query_8cs.html#aea5b3dcb7c8a52294feb57dcaa878033">Explanation</a>(Enclosing_Instance.Boost, <span class="stringliteral">"boost"</span>);</div> |
| <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">if</span> (Enclosing_Instance.Boost != 1.0f)</div> |
| <div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  queryExpl.AddDetail(boostExpl);</div> |
| <div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  queryExpl.AddDetail(expl);</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>  <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> queryNormExpl = <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="l00124"></a><span class="lineno"> 124</span>  queryExpl.AddDetail(queryNormExpl);</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>  queryExpl.Value = boostExpl.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html#ae7933fa7759da03b13211cf2804c40af" title="The value assigned to this explanation node. ">Value</a> * expl.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html#ae7933fa7759da03b13211cf2804c40af" title="The value assigned to this explanation node. ">Value</a> * queryNormExpl.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html#ae7933fa7759da03b13211cf2804c40af" title="The value assigned to this explanation node. ">Value</a>;</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>  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>(queryExpl);</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="comment">// explain field weight</span></div> |
| <div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  System.String field = Enclosing_Instance.term.Field;</div> |
| <div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_complex_explanation.html" title="Expert: Describes the score computation for document and query, and can distinguish a match independe...">ComplexExplanation</a> fieldExpl = <span class="keyword">new</span> <a class="code" href="_custom_score_query_8cs.html#aaff36a95cdad7bc1affaff3241d83f90">ComplexExplanation</a>();</div> |
| <div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  fieldExpl.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html#a6ea561368bd5826af73342c3fe2e5eb5" title="A description of this explanation node. ">Description</a> = <span class="stringliteral">"fieldWeight("</span> + Enclosing_Instance.term + <span class="stringliteral">" in "</span> + doc + <span class="stringliteral">"), product of:"</span>;</div> |
| <div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div> |
| <div class="line"><a name="l00135"></a><span class="lineno"> 135</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> tfExplanation = <span class="keyword">new</span> <a class="code" href="_custom_score_query_8cs.html#aea5b3dcb7c8a52294feb57dcaa878033">Explanation</a>();</div> |
| <div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordtype">int</span> tf = 0;</div> |
| <div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <a class="code" href="_field_cache_impl_8cs.html#a058de2d1c801e53325f35357f213391f">TermDocs</a> termDocs = reader.TermDocs(enclosingInstance.term);</div> |
| <div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordflow">if</span> (termDocs != null)</div> |
| <div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  {</div> |
| <div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordflow">try</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>  <span class="keywordflow">if</span> (termDocs.SkipTo(doc) && termDocs.Doc == doc)</div> |
| <div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  {</div> |
| <div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  tf = termDocs.Freq;</div> |
| <div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  }</div> |
| <div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  }</div> |
| <div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">finally</span></div> |
| <div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  {</div> |
| <div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  termDocs.Close();</div> |
| <div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  }</div> |
| <div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  tfExplanation.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html#ae7933fa7759da03b13211cf2804c40af" title="The value assigned to this explanation node. ">Value</a> = similarity.Tf(tf);</div> |
| <div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  tfExplanation.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html#a6ea561368bd5826af73342c3fe2e5eb5" title="A description of this explanation node. ">Description</a> = <span class="stringliteral">"tf(termFreq("</span> + enclosingInstance.term + <span class="stringliteral">")="</span> + tf + <span class="stringliteral">")"</span>;</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="keywordflow">else</span></div> |
| <div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  {</div> |
| <div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  tfExplanation.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html#ae7933fa7759da03b13211cf2804c40af" title="The value assigned to this explanation node. ">Value</a> = 0.0f;</div> |
| <div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  tfExplanation.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html#a6ea561368bd5826af73342c3fe2e5eb5" title="A description of this explanation node. ">Description</a> = <span class="stringliteral">"no matching term"</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>  fieldExpl.<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>(tfExplanation);</div> |
| <div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  fieldExpl.<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>(expl);</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>  <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> fieldNormExpl = <span class="keyword">new</span> <a class="code" href="_custom_score_query_8cs.html#aea5b3dcb7c8a52294feb57dcaa878033">Explanation</a>();</div> |
| <div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  byte[] fieldNorms = reader.Norms(field);</div> |
| <div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordtype">float</span> fieldNorm = fieldNorms != null?<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>.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_similarity.html#acd2a4329c78ea23877a82c425fe76188" title="Decodes a normalization factor stored in an index.">DecodeNorm</a>(fieldNorms[doc]):1.0f;</div> |
| <div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  fieldNormExpl.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html#ae7933fa7759da03b13211cf2804c40af" title="The value assigned to this explanation node. ">Value</a> = fieldNorm;</div> |
| <div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  fieldNormExpl.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html#a6ea561368bd5826af73342c3fe2e5eb5" title="A description of this explanation node. ">Description</a> = <span class="stringliteral">"fieldNorm(field="</span> + field + <span class="stringliteral">", doc="</span> + doc + <span class="stringliteral">")"</span>;</div> |
| <div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  fieldExpl.<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>(fieldNormExpl);</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>  fieldExpl.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_complex_explanation.html#a1aac472627a50d98db19487e2234054e" title="The match status of this explanation node.">Match</a> = tfExplanation.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html#a67c3152297c3f704820b3a0de8ad8a52" title="Indicates whether or not this Explanation models a good match.">IsMatch</a>;</div> |
| <div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  fieldExpl.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html#ae7933fa7759da03b13211cf2804c40af" title="The value assigned to this explanation node. ">Value</a> = tfExplanation.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html#ae7933fa7759da03b13211cf2804c40af" title="The value assigned to this explanation node. ">Value</a> * expl.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html#ae7933fa7759da03b13211cf2804c40af" title="The value assigned to this explanation node. ">Value</a> * fieldNormExpl.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html#ae7933fa7759da03b13211cf2804c40af" title="The value assigned to this explanation node. ">Value</a>;</div> |
| <div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  </div> |
| <div class="line"><a name="l00172"></a><span class="lineno"> 172</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>(fieldExpl);</div> |
| <div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  System.Boolean? tempAux = fieldExpl.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_complex_explanation.html#a1aac472627a50d98db19487e2234054e" title="The match status of this explanation node.">Match</a>;</div> |
| <div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  result.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_complex_explanation.html#a1aac472627a50d98db19487e2234054e" title="The match status of this explanation node.">Match</a> = tempAux;</div> |
| <div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  </div> |
| <div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="comment">// combine them</span></div> |
| <div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  result.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html#ae7933fa7759da03b13211cf2804c40af" title="The value assigned to this explanation node. ">Value</a> = queryExpl.Value * fieldExpl.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_explanation.html#ae7933fa7759da03b13211cf2804c40af" title="The value assigned to this explanation node. ">Value</a>;</div> |
| <div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  </div> |
| <div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordflow">if</span> (queryExpl.Value == 1.0f)</div> |
| <div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordflow">return</span> fieldExpl;</div> |
| <div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  </div> |
| <div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">return</span> result;</div> |
| <div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  }</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="l00187"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_term_query.html#a0cbb362ee8b86a0d927a5750c7545d3b"> 187</a></span>  <span class="keyword">public</span> <a class="code" href="_more_like_this_8cs.html#a13f0b68c1e7c8f509c3a0be1441df5d9">TermQuery</a>(<a class="code" href="_more_like_this_8cs.html#a8797eb30ce21b31829d3e3a43a20e3b9">Term</a> t)</div> |
| <div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  {</div> |
| <div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  term = t;</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> </div> |
| <div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keyword">public</span> <span class="keyword">virtual</span> <a class="code" href="_more_like_this_8cs.html#a8797eb30ce21b31829d3e3a43a20e3b9">Term</a> <a class="code" href="_more_like_this_8cs.html#a8797eb30ce21b31829d3e3a43a20e3b9">Term</a></div> |
| <div class="line"><a name="l00194"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_term_query.html#a1a4ddb2c595693edc03bbb198b46d61e"> 194</a></span>  {</div> |
| <div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="keyword">get</span> { <span class="keywordflow">return</span> term; }</div> |
| <div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  }</div> |
| <div class="line"><a name="l00197"></a><span class="lineno"> 197</span> </div> |
| <div class="line"><a name="l00198"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_term_query.html#a4b1511e6d6b4916765405826fb78ddb4"> 198</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="l00199"></a><span class="lineno"> 199</span>  {</div> |
| <div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> TermWeight(<span class="keyword">this</span>, searcher);</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_term_query.html#a8c84d4d37b6eb532e3d9fb51ed8cb90e"> 203</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="_more_like_this_8cs.html#a8797eb30ce21b31829d3e3a43a20e3b9">Term</a>> terms)</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>  terms.Add(<a class="code" href="_more_like_this_8cs.html#a8797eb30ce21b31829d3e3a43a20e3b9">Term</a>);</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="l00209"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_term_query.html#a24adc7e8885bad69b38c5e1c4cc26c3f"> 209</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> System.String ToString(System.String field)</div> |
| <div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  {</div> |
| <div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  System.Text.StringBuilder buffer = <span class="keyword">new</span> System.Text.StringBuilder();</div> |
| <div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">if</span> (!term.Field.Equals(field))</div> |
| <div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  {</div> |
| <div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  buffer.Append(term.Field);</div> |
| <div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  buffer.Append(<span class="stringliteral">":"</span>);</div> |
| <div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  }</div> |
| <div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  buffer.Append(term.Text);</div> |
| <div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  buffer.Append(<a class="code" href="_boolean_query_8cs.html#aeff40eaf34e2b78f761d305f48b95699">ToStringUtils</a>.Boost(Boost));</div> |
| <div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keywordflow">return</span> buffer.ToString();</div> |
| <div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  }</div> |
| <div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  </div> |
| <div class="line"><a name="l00223"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_term_query.html#a0f3830e5d144e576224f162b871bfb62"> 223</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="l00224"></a><span class="lineno"> 224</span>  {</div> |
| <div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordflow">if</span> (!(o is <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_term_query.html" title="A Query that matches documents containing a term. This may be combined with other terms with a Boolea...">TermQuery</a>))</div> |
| <div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  TermQuery other = (<a class="code" href="_more_like_this_8cs.html#a13f0b68c1e7c8f509c3a0be1441df5d9">TermQuery</a>) o;</div> |
| <div class="line"><a name="l00228"></a><span class="lineno"> 228</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.term.Equals(other.term);</div> |
| <div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  }</div> |
| <div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  </div> |
| <div class="line"><a name="l00232"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_term_query.html#a0b6d82bf4c989558de5a9f76ad15d66b"> 232</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">int</span> GetHashCode()</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>  <span class="keywordflow">return</span> BitConverter.ToInt32(BitConverter.GetBytes(Boost), 0) ^ term.GetHashCode();</div> |
| <div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  }</div> |
| <div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  }</div> |
| <div class="line"><a name="l00237"></a><span class="lineno"> 237</span> }</div> |
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