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| <a href="_caching_span_filter_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"> 20</span> <span class="keyword">using</span> System.Runtime.InteropServices;</div> |
| <div class="line"><a name="l00021"></a><span class="lineno"><a class="code" href="_caching_span_filter_8cs.html#a2a6914ea10bbe06764856e29e5674e66"> 21</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="l00022"></a><span class="lineno"> 22</span> </div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">namespace </span>Lucene.Net.Search</div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> {</div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  </div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  [Serializable]</div> |
| <div class="line"><a name="l00030"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_caching_span_filter.html"> 30</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_caching_span_filter.html" title="Wraps another SpanFilter's result and caches it. The purpose is to allow filters to simply filter...">CachingSpanFilter</a>:<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_span_filter.html" title="Abstract base class providing a mechanism to restrict searches to a subset of an index and also maint...">SpanFilter</a></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">private</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_span_filter.html" title="Abstract base class providing a mechanism to restrict searches to a subset of an index and also maint...">SpanFilter</a> filter;</div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  </div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  [NonSerialized]</div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keyword">internal</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>.FilterCache<<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_span_filter_result.html" title="The results of a SpanQueryFilter. Wraps the BitSet and the position information from the SpanQuery...">SpanFilterResult</a>> cache;</div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div> |
| <div class="line"><a name="l00044"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_caching_span_filter.html#a97d908b86dc6fbde5bf93815bd5100ae"> 44</a></span>  <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_caching_span_filter.html" title="Wraps another SpanFilter's result and caches it. The purpose is to allow filters to simply filter...">CachingSpanFilter</a>(<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_span_filter.html" title="Abstract base class providing a mechanism to restrict searches to a subset of an index and also maint...">SpanFilter</a> filter): this(filter, <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>.DeletesMode.RECACHE)</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="l00047"></a><span class="lineno"> 47</span>  }</div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div> |
| <div class="line"><a name="l00052"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_caching_span_filter.html#a22f1f25a48eb0193da5cbb951f9f4d31"> 52</a></span>  <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_caching_span_filter.html" title="Wraps another SpanFilter's result and caches it. The purpose is to allow filters to simply filter...">CachingSpanFilter</a>(<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_span_filter.html" title="Abstract base class providing a mechanism to restrict searches to a subset of an index and also maint...">SpanFilter</a> filter, <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>.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_caching_wrapper_filter.html#a14585403da294c38023fd5070f946172">DeletesMode</a> deletesMode)</div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  {</div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  this.filter = filter;</div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordflow">if</span> (deletesMode == <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>.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_caching_wrapper_filter.html#a14585403da294c38023fd5070f946172">DeletesMode</a>.DYNAMIC)</div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  {</div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> System.ArgumentException(<span class="stringliteral">"DeletesMode.DYNAMIC is not supported"</span>);</div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  }</div> |
| <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  this.cache = <span class="keyword">new</span> AnonymousFilterCache(deletesMode);</div> |
| <div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  }</div> |
| <div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div> |
| <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keyword">class </span>AnonymousFilterCache : <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>.FilterCache<SpanFilterResult></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> AnonymousFilterCache(<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>.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_caching_wrapper_filter.html#a14585403da294c38023fd5070f946172">DeletesMode</a> deletesMode) : base(deletesMode)</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>  }</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">protected</span> <span class="keyword">override</span> SpanFilterResult MergeDeletes(<a class="code" href="_more_like_this_8cs.html#a2a6914ea10bbe06764856e29e5674e66">IndexReader</a> reader, SpanFilterResult docIdSet)</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">throw</span> <span class="keyword">new</span> System.ArgumentException(<span class="stringliteral">"DeletesMode.DYNAMIC is not supported"</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>  </div> |
| <div class="line"><a name="l00074"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_caching_span_filter.html#a75aad539fc9cea6480741a4e608db038"> 74</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_doc_id_set.html" title="A DocIdSet contains a set of doc ids. Implementing classes must only implement Iterator to provide ac...">DocIdSet</a> GetDocIdSet(<a class="code" href="_more_like_this_8cs.html#a2a6914ea10bbe06764856e29e5674e66">IndexReader</a> reader)</div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  {</div> |
| <div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_span_filter_result.html" title="The results of a SpanQueryFilter. Wraps the BitSet and the position information from the SpanQuery...">SpanFilterResult</a> result = GetCachedResult(reader);</div> |
| <div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">return</span> result != null?result.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_span_filter_result.html#a1b8865d2de6cb04d17dce41991e3d5ca" title="Returns the docIdSet ">DocIdSet</a>:null;</div> |
| <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  }</div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="comment">// for testing</span></div> |
| <div class="line"><a name="l00081"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_caching_span_filter.html#a770c15baf4ba17a4ce0707a4e37843b7"> 81</a></span>  <span class="keyword">public</span> <span class="keywordtype">int</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_caching_span_filter.html#a770c15baf4ba17a4ce0707a4e37843b7">hitCount</a>, missCount;</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">private</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_span_filter_result.html" title="The results of a SpanQueryFilter. Wraps the BitSet and the position information from the SpanQuery...">SpanFilterResult</a> GetCachedResult(<a class="code" href="_more_like_this_8cs.html#a2a6914ea10bbe06764856e29e5674e66">IndexReader</a> reader)</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>  <span class="keywordtype">object</span> coreKey = reader.FieldCacheKey;</div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordtype">object</span> delCoreKey = reader.HasDeletions ? reader.DeletesCacheKey : coreKey;</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>  <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_span_filter_result.html" title="The results of a SpanQueryFilter. Wraps the BitSet and the position information from the SpanQuery...">SpanFilterResult</a> result = cache.Get(reader, coreKey, delCoreKey);</div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">if</span> (result != null) {</div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  hitCount++;</div> |
| <div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordflow">return</span> result;</div> |
| <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  }</div> |
| <div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div> |
| <div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  missCount++;</div> |
| <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  result = filter.BitSpans(reader);</div> |
| <div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div> |
| <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  cache.Put(coreKey, delCoreKey, result);</div> |
| <div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordflow">return</span> result;</div> |
| <div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  }</div> |
| <div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  </div> |
| <div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  </div> |
| <div class="line"><a name="l00102"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_caching_span_filter.html#aadad9c837fd02e1ea67a9d163220a14a"> 102</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_span_filter_result.html" title="The results of a SpanQueryFilter. Wraps the BitSet and the position information from the SpanQuery...">SpanFilterResult</a> BitSpans(<a class="code" href="_more_like_this_8cs.html#a2a6914ea10bbe06764856e29e5674e66">IndexReader</a> reader)</div> |
| <div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  {</div> |
| <div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">return</span> GetCachedResult(reader);</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>  </div> |
| <div class="line"><a name="l00107"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_caching_span_filter.html#a3932a65fb4bf16268bd3cc8996721cc2"> 107</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> System.String ToString()</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>  <span class="keywordflow">return</span> <span class="stringliteral">"CachingSpanFilter("</span> + filter + <span class="stringliteral">")"</span>;</div> |
| <div class="line"><a name="l00110"></a><span class="lineno"> 110</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"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_caching_span_filter.html#a1b462942bf7ac75c973bbeac896cee69"> 112</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="l00113"></a><span class="lineno"> 113</span>  {</div> |
| <div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordflow">if</span> (!(o is <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_caching_span_filter.html" title="Wraps another SpanFilter's result and caches it. The purpose is to allow filters to simply filter...">CachingSpanFilter</a>))</div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">return</span> this.filter.Equals(((CachingSpanFilter) o).filter);</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>  </div> |
| <div class="line"><a name="l00119"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_caching_span_filter.html#a9313ccd4a1e8bb08325e7174e77c113b"> 119</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">int</span> GetHashCode()</div> |
| <div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  {</div> |
| <div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordflow">return</span> filter.GetHashCode() ^ 0x1117BF25;</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>  }</div> |
| <div class="line"><a name="l00124"></a><span class="lineno"> 124</span> }</div> |
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