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| <div class="title">FieldValuesBitSets.cs</div> </div> |
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| <a href="_field_values_bit_sets_8cs.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* </span></div> |
| <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one or more</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * contributor license agreements. See the NOTICE file distributed with</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * this work for additional information regarding copyright ownership.</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * The ASF licenses this file to You under the Apache License, Version 2.0</span></div> |
| <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * (the "License"); you may not use this file except in compliance with</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * the License. You may obtain a copy of the License at</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * Unless required by applicable law or agreed to in writing, software</span></div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</span></div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * See the License for the specific language governing permissions and</span></div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * limitations under the License.</span></div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">using</span> System;</div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">using</span> System.Collections.Generic;</div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">using</span> System.Linq;</div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">using</span> System.Text;</div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">using</span> Lucene.Net.Analysis;</div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">using</span> Lucene.Net.Documents;</div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">using</span> Lucene.Net.Analysis.Standard;</div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">using</span> Lucene.Net.Index;</div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">using</span> Lucene.Net.Search;</div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">using</span> Lucene.Net.QueryParsers;</div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">using</span> Lucene.Net.Store;</div> |
| <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">using</span> Lucene.Net.Util;</div> |
| <div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div> |
| <div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">namespace </span>Lucene.Net.Search</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> </div> |
| <div class="line"><a name="l00035"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_field_values_bit_sets.html"> 35</a></span>  <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_field_values_bit_sets.html">FieldValuesBitSets</a></div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  {</div> |
| <div class="line"><a name="l00037"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_field_values_bit_sets.html#ab222db340c43b43fbb3badfe67897e34"> 37</a></span>  <span class="keyword">public</span> <span class="keywordtype">string</span> <a class="code" href="class_lucene_1_1_net_1_1_documents_1_1_field.html" title="A field is a section of a Document. Each field has two parts, a name and a value. Values may be free ...">Field</a> = <span class="stringliteral">""</span>;</div> |
| <div class="line"><a name="l00038"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_field_values_bit_sets.html#a2ee43c39a4f6da95f83c03682a6c784c"> 38</a></span>  <span class="keyword">public</span> Dictionary<string, OpenBitSetDISI> FieldValueBitSetPair = <span class="keyword">new</span> Dictionary<string, OpenBitSetDISI>();</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>  <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="l00041"></a><span class="lineno"> 41</span> </div> |
| <div class="line"><a name="l00042"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_field_values_bit_sets.html#a69068c26701045722b00ec820a9d2b4d"> 42</a></span>  <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_field_values_bit_sets.html">FieldValuesBitSets</a>(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_reader.html" title="IndexReader is an abstract class, providing an interface for accessing an index. Search of an index i...">IndexReader</a> reader, <span class="keywordtype">string</span> field)</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>  this.<a class="code" href="class_lucene_1_1_net_1_1_documents_1_1_field.html" title="A field is a section of a Document. Each field has two parts, a name and a value. Values may be free ...">Field</a> = field;</div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  this._Reader = reader;</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="keywordflow">foreach</span> (<span class="keywordtype">string</span> val <span class="keywordflow">in</span> GetFieldValues(field))</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>  FieldValueBitSetPair.Add(val, GetBitSet(field, val));</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>  List<string> GetFieldValues(<span class="keywordtype">string</span> groupByField)</div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  {</div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  List<string> list = <span class="keyword">new</span> List<string>();</div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</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.Terms(<span class="keyword">new</span> <a class="code" href="_more_like_this_8cs.html#a8797eb30ce21b31829d3e3a43a20e3b9">Term</a>(groupByField, <span class="stringliteral">""</span>));</div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">if</span> (te.Term.Field != groupByField) <span class="keywordflow">return</span> list;</div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  list.Add(te.Term.Text);</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="keywordflow">while</span> (te.Next())</div> |
| <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  {</div> |
| <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">if</span> (te.Term.Field != groupByField) <span class="keywordflow">break</span>;</div> |
| <div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  list.Add(te.Term.Text);</div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  }</div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">return</span> list;</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>  <a class="code" href="class_lucene_1_1_net_1_1_util_1_1_open_bit_set_d_i_s_i.html">OpenBitSetDISI</a> GetBitSet(<span class="keywordtype">string</span> groupByField, <span class="keywordtype">string</span> group)</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>  <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> query = <span class="keyword">new</span> <a class="code" href="_more_like_this_8cs.html#a13f0b68c1e7c8f509c3a0be1441df5d9">TermQuery</a>(<span class="keyword">new</span> <a class="code" href="_more_like_this_8cs.html#a8797eb30ce21b31829d3e3a43a20e3b9">Term</a>(groupByField, group));</div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_filter.html" title="Abstract base class for restricting which documents may be returned during searching.">Filter</a> filter = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_caching_wrapper_filter.html" title="Wraps another filter's result and caches it. The purpose is to allow filters to simply filter...">CachingWrapperFilter</a>(<span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_query_wrapper_filter.html" title="Constrains search results to only match those which also match a provided query.">QueryWrapperFilter</a>(query));</div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="_caching_wrapper_filter_8cs.html#a66ecd2e4919dc3b8a82041b62e31d883">OpenBitSetDISI</a>(filter.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_filter.html#a6acd9f9caec9c3a4adba5580593f76c7">GetDocIdSet</a>(_Reader).<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_doc_id_set.html#ada9f32eb3d60f5b8702420e19373356c" title="Provides a DocIdSetIterator to access the set. This implementation can return null or EMPTY_DOCIDSET...">Iterator</a>(), _Reader.MaxDoc);</div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  }</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> }</div> |
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