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| <div class="title">DocIdBitSet.cs</div> </div> |
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| <a href="_doc_id_bit_set_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;</div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">using</span> Lucene.Net.Support;</div> |
| <div class="line"><a name="l00021"></a><span class="lineno"><a class="code" href="_doc_id_bit_set_8cs.html#a4245eee1c0c260a340820cfe67797b43"> 21</a></span> <span class="keyword">using</span> <a class="code" href="_doc_id_bit_set_8cs.html#a4245eee1c0c260a340820cfe67797b43">DocIdSet</a> = Lucene.Net.Search.DocIdSet;</div> |
| <div class="line"><a name="l00022"></a><span class="lineno"><a class="code" href="_doc_id_bit_set_8cs.html#adbba0575d48e29661f658fa4071fde4f"> 22</a></span> <span class="keyword">using</span> <a class="code" href="_doc_id_bit_set_8cs.html#adbba0575d48e29661f658fa4071fde4f">DocIdSetIterator</a> = Lucene.Net.Search.DocIdSetIterator;</div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">namespace </span>Lucene.Net.Util</div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> {</div> |
| <div class="line"><a name="l00027"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_util_1_1_doc_id_bit_set.html"> 27</a></span>  <span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_util_1_1_doc_id_bit_set.html" title="Simple DocIdSet and DocIdSetIterator backed by a BitSet ">DocIdBitSet</a>:<a class="code" href="_doc_id_bit_set_8cs.html#a4245eee1c0c260a340820cfe67797b43">DocIdSet</a></div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  {</div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keyword">private</span> System.Collections.BitArray bitSet;</div> |
| <div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  </div> |
| <div class="line"><a name="l00031"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_util_1_1_doc_id_bit_set.html#abb102bec12cefaf6a3d5876fc79c92ad"> 31</a></span>  <span class="keyword">public</span> <a class="code" href="_filter_8cs.html#a673a4822c0bf5f5fdadb59f7ad92338c">DocIdBitSet</a>(System.Collections.BitArray bitSet)</div> |
| <div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  {</div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  this.bitSet = bitSet;</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>  </div> |
| <div class="line"><a name="l00036"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_util_1_1_doc_id_bit_set.html#a8acf79ae40ce73ce75c03e2d380ce68c"> 36</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> <a class="code" href="_doc_id_bit_set_8cs.html#adbba0575d48e29661f658fa4071fde4f">DocIdSetIterator</a> Iterator()</div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  {</div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> DocIdBitSetIterator(bitSet);</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> </div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">bool</span> IsCacheable</div> |
| <div class="line"><a name="l00043"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_util_1_1_doc_id_bit_set.html#adbf227756c615c21203be9f47e0e3dcf"> 43</a></span>  {</div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keyword">get</span> { <span class="keywordflow">return</span> <span class="keyword">true</span>; }</div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  }</div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keyword">public</span> <span class="keyword">virtual</span> BitArray BitSet</div> |
| <div class="line"><a name="l00049"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_util_1_1_doc_id_bit_set.html#a0cc423fd5846e3be45421d69693a4959"> 49</a></span>  {</div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">get</span> { <span class="keywordflow">return</span> this.bitSet; }</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> <span class="keyword">class </span>DocIdBitSetIterator:<a class="code" href="_doc_id_bit_set_8cs.html#adbba0575d48e29661f658fa4071fde4f">DocIdSetIterator</a></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>  <span class="keyword">private</span> <span class="keywordtype">int</span> docId;</div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keyword">private</span> System.Collections.BitArray bitSet;</div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  </div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">internal</span> DocIdBitSetIterator(System.Collections.BitArray bitSet)</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>  this.bitSet = bitSet;</div> |
| <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  this.docId = - 1;</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>  </div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">int</span> DocID()</div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  {</div> |
| <div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">return</span> docId;</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>  </div> |
| <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">int</span> NextDoc()</div> |
| <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  {</div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="comment">// (docId + 1) on next line requires -1 initial value for docNr:</span></div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordtype">int</span> d = <a class="code" href="class_lucene_1_1_net_1_1_support_1_1_bit_set_support.html" title="This class provides supporting methods of java.util.BitSet that are not present in System...">BitSetSupport</a>.<a class="code" href="class_lucene_1_1_net_1_1_support_1_1_bit_set_support.html#a4c7e3edfc4b05d7cb62c06a063108ade" title="Returns the next set bit at or after index, or -1 if no such bit exists. ">NextSetBit</a>(bitSet, docId + 1);</div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="comment">// -1 returned by BitSet.nextSetBit() when exhausted</span></div> |
| <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  docId = d == - 1?NO_MORE_DOCS:d;</div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">return</span> docId;</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">int</span> Advance(<span class="keywordtype">int</span> target)</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="keywordtype">int</span> d = <a class="code" href="class_lucene_1_1_net_1_1_support_1_1_bit_set_support.html" title="This class provides supporting methods of java.util.BitSet that are not present in System...">BitSetSupport</a>.<a class="code" href="class_lucene_1_1_net_1_1_support_1_1_bit_set_support.html#a4c7e3edfc4b05d7cb62c06a063108ade" title="Returns the next set bit at or after index, or -1 if no such bit exists. ">NextSetBit</a>(bitSet, target);</div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="comment">// -1 returned by BitSet.nextSetBit() when exhausted</span></div> |
| <div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  docId = d == - 1?NO_MORE_DOCS:d;</div> |
| <div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordflow">return</span> docId;</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>  }</div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  }</div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span> }</div> |
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