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|  <span id="projectnumber">3.0.3</span> |
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| <a href="_delete_files_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> Lucene.Net.Index;</div> |
| <div class="line"><a name="l00020"></a><span class="lineno"><a class="code" href="_delete_files_8cs.html#a268bfcb9b9cbdec8d60c03647e293e7e"> 20</a></span> <span class="keyword">using</span> <a class="code" href="_check_index_8cs.html#a268bfcb9b9cbdec8d60c03647e293e7e">FSDirectory</a> = Lucene.Net.Store.FSDirectory;</div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div> |
| <div class="line"><a name="l00022"></a><span class="lineno"><a class="code" href="namespace_lucene_1_1_net_1_1_demo.html"> 22</a></span> <span class="keyword">namespace </span>Lucene.Net.Demo</div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> {</div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">class </span>DeleteFiles</div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  {</div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  </div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  [STAThread]</div> |
| <div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">void</span> Main(System.String[] args)</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>  var usage = typeof(DeleteFiles) + <span class="stringliteral">" <unique_term>"</span>;</div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keywordflow">if</span> (args.Length == 0)</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>  Console.Error.WriteLine(<span class="stringliteral">"Usage: "</span> + usage);</div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  Environment.Exit(1);</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> </div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordflow">try</span></div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  {</div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="comment">// We don't want a read-only reader because we are about to delete.</span></div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keyword">using</span> (var directory = <a class="code" href="_check_index_8cs.html#a268bfcb9b9cbdec8d60c03647e293e7e">FSDirectory</a>.Open(<span class="stringliteral">"index"</span>))</div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">using</span> (var reader = <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>.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_reader.html#ad51f1feca975e447b6486d01ed24e1ea" title="Returns an IndexReader reading the index in the given Directory. You should pass readOnly=true, since it gives much better concurrent performance, unless you intend to do write operations (delete documents or change norms) with the reader. ">Open</a>(directory, <span class="keyword">false</span>))</div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  {</div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  var term = <span class="keyword">new</span> <a class="code" href="_more_like_this_8cs.html#a8797eb30ce21b31829d3e3a43a20e3b9">Term</a>(<span class="stringliteral">"path"</span>, args[0]);</div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  var deleted = reader.DeleteDocuments(term);</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>  Console.Out.WriteLine(<span class="stringliteral">"deleted "</span> + deleted + <span class="stringliteral">" documents containing "</span> + term);</div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="comment">// one can also delete documents by their internal id:</span></div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="comment">/*</span></div> |
| <div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment"> for (int i = 0; i < reader.MaxDoc; i++) {</span></div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"> Console.Out.WriteLine("Deleting document with id " + i);</span></div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"> reader.DeleteDocument(i);</span></div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"> }</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> </div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  reader.Commit();</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>  }</div> |
| <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordflow">catch</span> (Exception e)</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>  Console.Out.WriteLine(<span class="stringliteral">" caught a "</span> + e.GetType() + <span class="stringliteral">"\n with message: "</span> + e.Message);</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>  }</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> |
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