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| <div class="title">QueryAutoStopWordAnalyzer.cs</div> </div> |
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| <a href="_query_auto_stop_word_analyzer_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"> *</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * or more contributor license agreements. See the NOTICE file</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * distributed with this work for additional information</span></div> |
| <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * regarding copyright ownership. The ASF licenses this file</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * to you under the Apache License, Version 2.0 (the</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * "License"); you may not use this file except in compliance</span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * with the License. You may obtain a copy of the License at</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"> * http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * Unless required by applicable law or agreed to in writing,</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * software distributed under the License is distributed on an</span></div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * KIND, either express or implied. See the License for the</span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * specific language governing permissions and limitations</span></div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * under the License.</span></div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">*/</span></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> <span class="keyword">using</span> System;</div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">using</span> System.Collections.Generic;</div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">using</span> System.IO;</div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">using</span> System.Linq;</div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">using</span> System.Text;</div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">using</span> Lucene.Net.Index;</div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">using</span> Lucene.Net.Support;</div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">using</span> Lucene.Net.Util;</div> |
| <div class="line"><a name="l00030"></a><span class="lineno"><a class="code" href="_query_auto_stop_word_analyzer_8cs.html#a63c914dcb7d19365ff0f7c6ea7ef77c4"> 30</a></span> <span class="keyword">using</span> <a class="code" href="namespace_lucene_1_1_net_1_1_util.html#a92602ef4dd5a04278f4b62379d552c0b" title="Use by certain classes to match version compatibility across releases of Lucene. WARNING: When changi...">Version</a> = Lucene.Net.Util.Version;</div> |
| <div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div> |
| <div class="line"><a name="l00032"></a><span class="lineno"><a class="code" href="namespace_lucene_1_1_net_1_1_analysis_1_1_query.html"> 32</a></span> <span class="keyword">namespace </span>Lucene.Net.Analysis.<a class="code" href="_more_like_this_8cs.html#accbc7c5687907350ba0e2681b41e1b0d">Query</a></div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span> {</div> |
| <div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> * An {@link Analyzer} used primarily at query time to wrap another analyzer and provide a layer of protection</span></div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"> * which prevents very common words from being passed into queries. </span></div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"> * <p></span></div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> * For very large indexes the cost</span></div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> * of reading TermDocs for a very common word can be high. This analyzer was created after experience with</span></div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> * a 38 million doc index which had a term in around 50% of docs and was causing TermQueries for </span></div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> * this term to take 2 seconds.</span></div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> * </p></span></div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"> * <p></span></div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"> * Use the various "addStopWords" methods in this class to automate the identification and addition of </span></div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"> * stop words found in an already existing index.</span></div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> * </p></span></div> |
| <div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00048"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_query_1_1_query_auto_stop_word_analyzer.html"> 48</a></span> <span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_query_1_1_query_auto_stop_word_analyzer.html">QueryAutoStopWordAnalyzer</a> : <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_analyzer.html" title="An Analyzer builds TokenStreams, which analyze text. It thus represents a policy for extracting index...">Analyzer</a> {</div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_analyzer.html" title="An Analyzer builds TokenStreams, which analyze text. It thus represents a policy for extracting index...">Analyzer</a> _delegate;</div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  HashMap<String,ISet<String>> stopWordsPerField = <span class="keyword">new</span> HashMap<String,ISet<String>>();</div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="comment">//The default maximum percentage (40%) of index documents which</span></div> |
| <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="comment">//can contain a term, after which the term is considered to be a stop word.</span></div> |
| <div class="line"><a name="l00053"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_query_1_1_query_auto_stop_word_analyzer.html#aeb55a6a56b191411de73585ef7ce76c6"> 53</a></span>  <span class="keyword">public</span> <span class="keyword">const</span> <span class="keywordtype">float</span> defaultMaxDocFreqPercent = 0.4f;</div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keyword">private</span> readonly <a class="code" href="namespace_lucene_1_1_net_1_1_util.html#a92602ef4dd5a04278f4b62379d552c0b" title="Use by certain classes to match version compatibility across releases of Lucene. WARNING: When changi...">Version</a> matchVersion;</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">/*</span></div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> * Initializes this analyzer with the Analyzer object that actually produces the tokens</span></div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"> * @param _delegate The choice of {@link Analyzer} that is used to produce the token stream which needs filtering</span></div> |
| <div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00061"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_query_1_1_query_auto_stop_word_analyzer.html#a1413cdaa67212541c1a056df51c53156"> 61</a></span>  <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_query_1_1_query_auto_stop_word_analyzer.html">QueryAutoStopWordAnalyzer</a>(<a class="code" href="namespace_lucene_1_1_net_1_1_util.html#a92602ef4dd5a04278f4b62379d552c0b" title="Use by certain classes to match version compatibility across releases of Lucene. WARNING: When changi...">Version</a> matchVersion, <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_analyzer.html" title="An Analyzer builds TokenStreams, which analyze text. It thus represents a policy for extracting index...">Analyzer</a> _delegate) </div> |
| <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  {</div> |
| <div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  this._delegate = _delegate;</div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  SetOverridesTokenStreamMethod<QueryAutoStopWordAnalyzer>();</div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  this.matchVersion = matchVersion;</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="comment">/*</span></div> |
| <div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment"> * Automatically adds stop words for all fields with terms exceeding the defaultMaxDocFreqPercent</span></div> |
| <div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment"> * @param reader The {@link IndexReader} which will be consulted to identify potential stop words that</span></div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment"> * exceed the required document frequency</span></div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment"> * @return The number of stop words identified.</span></div> |
| <div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment"> * @throws IOException</span></div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00076"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_query_1_1_query_auto_stop_word_analyzer.html#a67739d7b919152d66f1c3d5000514741"> 76</a></span>  <span class="keyword">public</span> <span class="keywordtype">int</span> AddStopWords(<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="l00077"></a><span class="lineno"> 77</span>  {</div> |
| <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">return</span> AddStopWords(reader, defaultMaxDocFreqPercent);</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> </div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment"> * Automatically adds stop words for all fields with terms exceeding the maxDocFreqPercent</span></div> |
| <div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="comment"> * @param reader The {@link IndexReader} which will be consulted to identify potential stop words that</span></div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="comment"> * exceed the required document frequency</span></div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment"> * @param maxDocFreq The maximum number of index documents which can contain a term, after which</span></div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="comment"> * the term is considered to be a stop word</span></div> |
| <div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="comment"> * @return The number of stop words identified.</span></div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment"> * @throws IOException</span></div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00091"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_query_1_1_query_auto_stop_word_analyzer.html#a6d7f816bd753b3f1c09b261b42ce1937"> 91</a></span>  <span class="keyword">public</span> <span class="keywordtype">int</span> AddStopWords(<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> maxDocFreq) </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>  <span class="keywordtype">int</span> numStopWords = 0;</div> |
| <div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  ICollection<String> fieldNames = reader.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_reader.html#a8c4e81993a2de016248031c3766f3ab7" title="Get a list of unique field names that exist in this index and have the specified field option informa...">GetFieldNames</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>.FieldOption.INDEXED);</div> |
| <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">for</span> (IEnumerator<String> iter = fieldNames.GetEnumerator(); iter.MoveNext();) {</div> |
| <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  String fieldName = iter.Current;</div> |
| <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  numStopWords += AddStopWords(reader, fieldName, maxDocFreq);</div> |
| <div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  }</div> |
| <div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">return</span> numStopWords;</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> </div> |
| <div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="comment"> * Automatically adds stop words for all fields with terms exceeding the maxDocFreqPercent</span></div> |
| <div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="comment"> * @param reader The {@link IndexReader} which will be consulted to identify potential stop words that</span></div> |
| <div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="comment"> * exceed the required document frequency</span></div> |
| <div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="comment"> * @param maxPercentDocs The maximum percentage (between 0.0 and 1.0) of index documents which</span></div> |
| <div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="comment"> * contain a term, after which the word is considered to be a stop word.</span></div> |
| <div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="comment"> * @return The number of stop words identified.</span></div> |
| <div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="comment"> * @throws IOException</span></div> |
| <div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00112"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_query_1_1_query_auto_stop_word_analyzer.html#a8afc86895919d6c6a76a524f13803425"> 112</a></span>  <span class="keyword">public</span> <span class="keywordtype">int</span> AddStopWords(<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">float</span> maxPercentDocs) </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="keywordtype">int</span> numStopWords = 0;</div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  ICollection<String> fieldNames = reader.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_reader.html#a8c4e81993a2de016248031c3766f3ab7" title="Get a list of unique field names that exist in this index and have the specified field option informa...">GetFieldNames</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>.FieldOption.INDEXED);</div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">for</span> (IEnumerator<String> iter = fieldNames.GetEnumerator(); iter.MoveNext();) {</div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  String fieldName = iter.Current;</div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  numStopWords += AddStopWords(reader, fieldName, maxPercentDocs);</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">return</span> numStopWords;</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="comment">/*</span></div> |
| <div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment"> * Automatically adds stop words for the given field with terms exceeding the maxPercentDocs</span></div> |
| <div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="comment"> * @param reader The {@link IndexReader} which will be consulted to identify potential stop words that</span></div> |
| <div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment"> * exceed the required document frequency</span></div> |
| <div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="comment"> * @param fieldName The field for which stopwords will be added</span></div> |
| <div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="comment"> * @param maxPercentDocs The maximum percentage (between 0.0 and 1.0) of index documents which</span></div> |
| <div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="comment"> * contain a term, after which the word is considered to be a stop word.</span></div> |
| <div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="comment"> * @return The number of stop words identified.</span></div> |
| <div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="comment"> * @throws IOException</span></div> |
| <div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00134"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_query_1_1_query_auto_stop_word_analyzer.html#a2c5876ed0b3b8780acfdf3768feed88b"> 134</a></span>  <span class="keyword">public</span> <span class="keywordtype">int</span> AddStopWords(<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, String fieldName, <span class="keywordtype">float</span> maxPercentDocs) </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">return</span> AddStopWords(reader, fieldName, (<span class="keywordtype">int</span>) (reader.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_reader.html#a300ecbc61b021d9ae600e1b00c61a851" title="Returns the number of documents in this index. ">NumDocs</a>() * maxPercentDocs));</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>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="comment"> * Automatically adds stop words for the given field with terms exceeding the maxPercentDocs</span></div> |
| <div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="comment"> * @param reader The {@link IndexReader} which will be consulted to identify potential stop words that</span></div> |
| <div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="comment"> * exceed the required document frequency</span></div> |
| <div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="comment"> * @param fieldName The field for which stopwords will be added</span></div> |
| <div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="comment"> * @param maxDocFreq The maximum number of index documents which</span></div> |
| <div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="comment"> * can contain a term, after which the term is considered to be a stop word.</span></div> |
| <div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="comment"> * @return The number of stop words identified.</span></div> |
| <div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="comment"> * @throws IOException</span></div> |
| <div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00150"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_query_1_1_query_auto_stop_word_analyzer.html#a338e2e9dc43dce9ca7c383a4bd2c8431"> 150</a></span>  <span class="keyword">public</span> <span class="keywordtype">int</span> AddStopWords(<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, String fieldName, <span class="keywordtype">int</span> maxDocFreq) </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>  var stopWords = Support.Compatibility.SetFactory.CreateHashSet<<span class="keywordtype">string</span>>();</div> |
| <div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  String internedFieldName = <a class="code" href="class_lucene_1_1_net_1_1_util_1_1_string_helper.html" title="Methods for manipulating strings.">StringHelper</a>.<a class="code" href="class_lucene_1_1_net_1_1_util_1_1_string_helper.html#ae7eedf8109fc57ea8bbb0b35d4b85551" title="Return the same string object for all equal strings ">Intern</a>(fieldName);</div> |
| <div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_enum.html" title="Abstract class for enumerating terms. Term enumerations are always ordered by Term.compareTo(). Each term in the enumeration is greater than all that precede it. ">TermEnum</a> te = reader.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_reader.html#a9881fb10c3dbc407157b0c7e9cca7d11" title="Returns an enumeration of all the terms in the index. The enumeration is ordered by Term...">Terms</a>(<span class="keyword">new</span> <a class="code" href="_more_like_this_8cs.html#a8797eb30ce21b31829d3e3a43a20e3b9">Term</a>(fieldName));</div> |
| <div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <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> term = te.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_enum.html#acfd949e542b23691974b3f867bcae47f" title="Returns the current Term in the enumeration.">Term</a>;</div> |
| <div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">while</span> (term != null) {</div> |
| <div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">if</span> (term.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term.html#a2ecfa7c0860798920d089654f34aa222" title="Returns the field of this term, an interned string. The field indicates the part of a document which ...">Field</a> != internedFieldName) {</div> |
| <div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">break</span>;</div> |
| <div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  }</div> |
| <div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordflow">if</span> (te.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_enum.html#a02510654c0b4d40c3c9aab1067541749" title="Returns the docFreq of the current Term in the enumeration.">DocFreq</a>() > maxDocFreq) {</div> |
| <div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  stopWords.Add(term.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term.html#afe11c449ea7db39725c494b2c2574847" title="Returns the text of this term. In the case of words, this is simply the text of the word...">Text</a>);</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="keywordflow">if</span> (!te.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_enum.html#a3821b36f91dd29129649dc64f5ee1738" title="Increments the enumeration to the next element. True if one exists.">Next</a>()) {</div> |
| <div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">break</span>;</div> |
| <div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  }</div> |
| <div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  term = te.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_enum.html#acfd949e542b23691974b3f867bcae47f" title="Returns the current Term in the enumeration.">Term</a>;</div> |
| <div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  }</div> |
| <div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  stopWordsPerField.Add(fieldName, stopWords);</div> |
| <div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  </div> |
| <div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="comment">/* if the stopwords for a field are changed,</span></div> |
| <div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="comment"> * then saved streams for that field are erased.</span></div> |
| <div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  IDictionary<String,SavedStreams> streamMap = (IDictionary<String,SavedStreams>) PreviousTokenStream;</div> |
| <div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">if</span> (streamMap != null)</div> |
| <div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  streamMap.Remove(fieldName);</div> |
| <div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  </div> |
| <div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keywordflow">return</span> stopWords.Count;</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> </div> |
| <div class="line"><a name="l00180"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_query_1_1_query_auto_stop_word_analyzer.html#a27cc64feb8ded91768b54dc3e4f7eac3"> 180</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_token_stream.html" title="A TokenStream enumerates the sequence of tokens, either from Fields of a Document or from query text...">TokenStream</a> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_query_1_1_query_auto_stop_word_analyzer.html#a27cc64feb8ded91768b54dc3e4f7eac3">TokenStream</a>(String fieldName, TextReader reader) {</div> |
| <div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_token_stream.html" title="A TokenStream enumerates the sequence of tokens, either from Fields of a Document or from query text...">TokenStream</a> result;</div> |
| <div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">try</span> {</div> |
| <div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  result = _delegate.ReusableTokenStream(fieldName, reader);</div> |
| <div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  } <span class="keywordflow">catch</span> (IOException) {</div> |
| <div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  result = _delegate.TokenStream(fieldName, reader);</div> |
| <div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  }</div> |
| <div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  var stopWords = stopWordsPerField[fieldName];</div> |
| <div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">if</span> (stopWords != null) {</div> |
| <div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  result = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_stop_filter.html" title="Removes stop words from a token stream.">StopFilter</a>(<a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_stop_filter.html" title="Removes stop words from a token stream.">StopFilter</a>.<a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_stop_filter.html#ab11fb0a8f9564b60ae61e29bef912ca8" title="Returns version-dependent default for enablePositionIncrements. Analyzers that embed StopFilter use t...">GetEnablePositionIncrementsVersionDefault</a>(matchVersion),</div> |
| <div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  result, stopWords);</div> |
| <div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  }</div> |
| <div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordflow">return</span> result;</div> |
| <div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  }</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>  <span class="keyword">private</span> <span class="keyword">class </span>SavedStreams {</div> |
| <div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="comment">/* the underlying stream */</span></div> |
| <div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keyword">protected</span> <span class="keyword">internal</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_token_stream.html" title="A TokenStream enumerates the sequence of tokens, either from Fields of a Document or from query text...">TokenStream</a> Wrapped;</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="comment">/*</span></div> |
| <div class="line"><a name="l00200"></a><span class="lineno"> 200</span> <span class="comment"> * when there are no stopwords for the field, refers to wrapped.</span></div> |
| <div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="comment"> * if there stopwords, it is a StopFilter around wrapped.</span></div> |
| <div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keyword">protected</span> <span class="keyword">internal</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_token_stream.html" title="A TokenStream enumerates the sequence of tokens, either from Fields of a Document or from query text...">TokenStream</a> WithStopFilter;</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>  </div> |
| <div class="line"><a name="l00206"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_query_1_1_query_auto_stop_word_analyzer.html#a9d105ee615d0e8b2cd8c9d22a89ab015"> 206</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_token_stream.html" title="A TokenStream enumerates the sequence of tokens, either from Fields of a Document or from query text...">TokenStream</a> ReusableTokenStream(String fieldName, TextReader reader)</div> |
| <div class="line"><a name="l00207"></a><span class="lineno"> 207</span> {</div> |
| <div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keywordflow">if</span> (overridesTokenStreamMethod) {</div> |
| <div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="comment">// LUCENE-1678: force fallback to tokenStream() if we</span></div> |
| <div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="comment">// have been subclassed and that subclass overrides</span></div> |
| <div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="comment">// tokenStream but not reusableTokenStream</span></div> |
| <div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">return</span> <a class="code" href="_more_like_this_8cs.html#a205730fc8c2839cf92051d131140dae0">TokenStream</a>(fieldName, reader);</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> </div> |
| <div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="comment">/* map of SavedStreams for each field */</span></div> |
| <div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  IDictionary<String, SavedStreams> streamMap = (IDictionary<String, SavedStreams>)PreviousTokenStream;</div> |
| <div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keywordflow">if</span> (streamMap == null) {</div> |
| <div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  streamMap = <span class="keyword">new</span> HashMap<String, SavedStreams>();</div> |
| <div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  PreviousTokenStream = streamMap;</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="l00222"></a><span class="lineno"> 222</span>  SavedStreams streams = streamMap[fieldName];</div> |
| <div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordflow">if</span> (streams == null) {</div> |
| <div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="comment">/* an entry for this field does not exist, create one */</span></div> |
| <div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  streams = <span class="keyword">new</span> SavedStreams();</div> |
| <div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  streamMap.Add(fieldName, streams);</div> |
| <div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  streams.Wrapped = _delegate.ReusableTokenStream(fieldName, reader);</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>  <span class="comment">/* if there are any stopwords for the field, save the stopfilter */</span></div> |
| <div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  var stopWords = stopWordsPerField[fieldName];</div> |
| <div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keywordflow">if</span> (stopWords != null)</div> |
| <div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  streams.WithStopFilter = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_stop_filter.html" title="Removes stop words from a token stream.">StopFilter</a>(<a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_stop_filter.html" title="Removes stop words from a token stream.">StopFilter</a>.<a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_stop_filter.html#ab11fb0a8f9564b60ae61e29bef912ca8" title="Returns version-dependent default for enablePositionIncrements. Analyzers that embed StopFilter use t...">GetEnablePositionIncrementsVersionDefault</a>(matchVersion),</div> |
| <div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  streams.Wrapped, stopWords);</div> |
| <div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  streams.WithStopFilter = streams.Wrapped;</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>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="comment"> * an entry for this field exists, verify the wrapped stream has not</span></div> |
| <div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="comment"> * changed. if it has not, reuse it, otherwise wrap the new stream.</span></div> |
| <div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_token_stream.html" title="A TokenStream enumerates the sequence of tokens, either from Fields of a Document or from query text...">TokenStream</a> result = _delegate.ReusableTokenStream(fieldName, reader);</div> |
| <div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keywordflow">if</span> (result == streams.Wrapped) {</div> |
| <div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="comment">/* the wrapped analyzer reused the stream */</span></div> |
| <div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  streams.WithStopFilter.Reset();</div> |
| <div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00248"></a><span class="lineno"> 248</span> <span class="comment"> * the wrapped analyzer did not. if there are any stopwords for the</span></div> |
| <div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="comment"> * field, create a new StopFilter around the new stream</span></div> |
| <div class="line"><a name="l00250"></a><span class="lineno"> 250</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  streams.Wrapped = result;</div> |
| <div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  var stopWords = stopWordsPerField[fieldName];</div> |
| <div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="keywordflow">if</span> (stopWords != null)</div> |
| <div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  streams.WithStopFilter = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_stop_filter.html" title="Removes stop words from a token stream.">StopFilter</a>(<a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_stop_filter.html" title="Removes stop words from a token stream.">StopFilter</a>.<a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_stop_filter.html#ab11fb0a8f9564b60ae61e29bef912ca8" title="Returns version-dependent default for enablePositionIncrements. Analyzers that embed StopFilter use t...">GetEnablePositionIncrementsVersionDefault</a>(matchVersion),</div> |
| <div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  streams.Wrapped, stopWords);</div> |
| <div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  streams.WithStopFilter = streams.Wrapped;</div> |
| <div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  }</div> |
| <div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  }</div> |
| <div class="line"><a name="l00260"></a><span class="lineno"> 260</span> </div> |
| <div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordflow">return</span> streams.WithStopFilter;</div> |
| <div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  }</div> |
| <div class="line"><a name="l00263"></a><span class="lineno"> 263</span> </div> |
| <div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00265"></a><span class="lineno"> 265</span> <span class="comment"> * Provides information on which stop words have been identified for a field</span></div> |
| <div class="line"><a name="l00266"></a><span class="lineno"> 266</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00267"></a><span class="lineno"> 267</span> <span class="comment"> * @param fieldName The field for which stop words identified in "addStopWords"</span></div> |
| <div class="line"><a name="l00268"></a><span class="lineno"> 268</span> <span class="comment"> * method calls will be returned</span></div> |
| <div class="line"><a name="l00269"></a><span class="lineno"> 269</span> <span class="comment"> * @return the stop words identified for a field</span></div> |
| <div class="line"><a name="l00270"></a><span class="lineno"> 270</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00271"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_query_1_1_query_auto_stop_word_analyzer.html#a18d78217509b72a0937f9aef905f3af9"> 271</a></span>  <span class="keyword">public</span> String[] <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_query_1_1_query_auto_stop_word_analyzer.html#a18d78217509b72a0937f9aef905f3af9">GetStopWords</a>(String fieldName) {</div> |
| <div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  String[] result;</div> |
| <div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  var stopWords = stopWordsPerField[fieldName];</div> |
| <div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keywordflow">if</span> (stopWords != null) {</div> |
| <div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  result = stopWords.ToArray();</div> |
| <div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  result = <span class="keyword">new</span> String[0];</div> |
| <div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  }</div> |
| <div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="keywordflow">return</span> result;</div> |
| <div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  }</div> |
| <div class="line"><a name="l00281"></a><span class="lineno"> 281</span> </div> |
| <div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00283"></a><span class="lineno"> 283</span> <span class="comment"> * Provides information on which stop words have been identified for all fields</span></div> |
| <div class="line"><a name="l00284"></a><span class="lineno"> 284</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00285"></a><span class="lineno"> 285</span> <span class="comment"> * @return the stop words (as terms)</span></div> |
| <div class="line"><a name="l00286"></a><span class="lineno"> 286</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00287"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_query_1_1_query_auto_stop_word_analyzer.html#a7aeb95510ab513517a82639742e58d53"> 287</a></span>  <span class="keyword">public</span> <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>[] <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_query_1_1_query_auto_stop_word_analyzer.html#a7aeb95510ab513517a82639742e58d53">GetStopWords</a>() {</div> |
| <div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  List<Term> allStopWords = <span class="keyword">new</span> List<Term>();</div> |
| <div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keywordflow">foreach</span>(var fieldName <span class="keywordflow">in</span> stopWordsPerField.Keys) </div> |
| <div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  {</div> |
| <div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  var stopWords = stopWordsPerField[fieldName];</div> |
| <div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="keywordflow">foreach</span>(var text <span class="keywordflow">in</span> stopWords) {</div> |
| <div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  allStopWords.Add(<span class="keyword">new</span> <a class="code" href="_more_like_this_8cs.html#a8797eb30ce21b31829d3e3a43a20e3b9">Term</a>(fieldName, text));</div> |
| <div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  }</div> |
| <div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  }</div> |
| <div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="keywordflow">return</span> allStopWords.ToArray();</div> |
| <div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  }</div> |
| <div class="line"><a name="l00298"></a><span class="lineno"> 298</span> </div> |
| <div class="line"><a name="l00299"></a><span class="lineno"> 299</span> }</div> |
| <div class="line"><a name="l00300"></a><span class="lineno"> 300</span> }</div> |
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