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&#160;<span id="projectnumber">3.0.3</span>
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<div id="projectbrief">Lucene.Net is a .NET port of the Java Lucene Indexing Library</div>
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<div class="title">Lucene.Net.Search.QueryWrapperFilter Class Reference</div> </div>
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<p>Constrains search results to only match those which also match a provided query.
<a href="class_lucene_1_1_net_1_1_search_1_1_query_wrapper_filter.html#details">More...</a></p>
<p>Inherits <a class="el" href="class_lucene_1_1_net_1_1_search_1_1_filter.html">Lucene.Net.Search.Filter</a>.</p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:af4f4cbee40aac5cc4639c9eca8e0f303"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_lucene_1_1_net_1_1_search_1_1_query_wrapper_filter.html#af4f4cbee40aac5cc4639c9eca8e0f303">QueryWrapperFilter</a> (<a class="el" href="class_lucene_1_1_net_1_1_search_1_1_query.html">Query</a> query)</td></tr>
<tr class="memdesc:af4f4cbee40aac5cc4639c9eca8e0f303"><td class="mdescLeft">&#160;</td><td class="mdescRight">Constructs a filter which only matches documents matching <code>query</code>. <a href="#af4f4cbee40aac5cc4639c9eca8e0f303"></a><br/></td></tr>
<tr class="separator:af4f4cbee40aac5cc4639c9eca8e0f303"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa60ea4910f680501adb0228512e6f4ed"><td class="memItemLeft" align="right" valign="top">override <a class="el" href="class_lucene_1_1_net_1_1_search_1_1_doc_id_set.html">DocIdSet</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_lucene_1_1_net_1_1_search_1_1_query_wrapper_filter.html#aa60ea4910f680501adb0228512e6f4ed">GetDocIdSet</a> (<a class="el" href="_more_like_this_8cs.html#a2a6914ea10bbe06764856e29e5674e66">IndexReader</a> reader)</td></tr>
<tr class="memdesc:aa60ea4910f680501adb0228512e6f4ed"><td class="mdescLeft">&#160;</td><td class="mdescRight"> <a href="#aa60ea4910f680501adb0228512e6f4ed"></a><br/></td></tr>
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<tr class="memitem:a325b57da685c3b332a52a6b15c9b3bf6"><td class="memItemLeft" align="right" valign="top">override System.String&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_lucene_1_1_net_1_1_search_1_1_query_wrapper_filter.html#a325b57da685c3b332a52a6b15c9b3bf6">ToString</a> ()</td></tr>
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<tr class="memitem:aeb04c24d50cc6e0f6101106058d6596c"><td class="memItemLeft" align="right" valign="top">override bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_lucene_1_1_net_1_1_search_1_1_query_wrapper_filter.html#aeb04c24d50cc6e0f6101106058d6596c">Equals</a> (System.Object o)</td></tr>
<tr class="separator:aeb04c24d50cc6e0f6101106058d6596c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:afb2dc4f3305561d4a64ffa43c31f8979"><td class="memItemLeft" align="right" valign="top">override int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_lucene_1_1_net_1_1_search_1_1_query_wrapper_filter.html#afb2dc4f3305561d4a64ffa43c31f8979">GetHashCode</a> ()</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Constrains search results to only match those which also match a provided query. </p>
<p>This could be used, for example, with a <a class="el" href="class_lucene_1_1_net_1_1_search_1_1_term_range_query.html" title="A Query that matches documents within an exclusive range of terms.">TermRangeQuery</a> on a suitably formatted date field to implement date filtering. One could re-use a single QueryFilter that matches, e.g., only documents modified within the last week. The QueryFilter and <a class="el" href="class_lucene_1_1_net_1_1_search_1_1_term_range_query.html" title="A Query that matches documents within an exclusive range of terms.">TermRangeQuery</a> would only need to be reconstructed once per day.</p>
<p>&lt;version&gt; $Id:$ &lt;/version&gt; </p>
<p>Definition at line <a class="el" href="_query_wrapper_filter_8cs_source.html#l00038">38</a> of file <a class="el" href="_query_wrapper_filter_8cs_source.html">QueryWrapperFilter.cs</a>.</p>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
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<td class="memname">Lucene.Net.Search.QueryWrapperFilter.QueryWrapperFilter </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_lucene_1_1_net_1_1_search_1_1_query.html">Query</a>&#160;</td>
<td class="paramname"><em>query</em></td><td>)</td>
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<p>Constructs a filter which only matches documents matching <code>query</code>. </p>
<p>Definition at line <a class="el" href="_query_wrapper_filter_8cs_source.html#l00078">78</a> of file <a class="el" href="_query_wrapper_filter_8cs_source.html">QueryWrapperFilter.cs</a>.</p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">override bool Lucene.Net.Search.QueryWrapperFilter.Equals </td>
<td>(</td>
<td class="paramtype">System.Object&#160;</td>
<td class="paramname"><em>o</em></td><td>)</td>
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<p>Definition at line <a class="el" href="_query_wrapper_filter_8cs_source.html#l00094">94</a> of file <a class="el" href="_query_wrapper_filter_8cs_source.html">QueryWrapperFilter.cs</a>.</p>
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<td class="memname">override <a class="el" href="class_lucene_1_1_net_1_1_search_1_1_doc_id_set.html">DocIdSet</a> Lucene.Net.Search.QueryWrapperFilter.GetDocIdSet </td>
<td>(</td>
<td class="paramtype"><a class="el" href="_more_like_this_8cs.html#a2a6914ea10bbe06764856e29e5674e66">IndexReader</a>&#160;</td>
<td class="paramname"><em>reader</em></td><td>)</td>
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<p>Creates a <a class="el" 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> enumerating the documents that should be permitted in search results. <b>NOTE:</b> null can be returned if no documents are accepted by this <a class="el" 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>.</p>
<p>Note: This method will be called once per segment in the index during searching. The returned <a class="el" 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> must refer to document IDs for that segment, not for the top-level reader.</p>
<p>/summary&gt; </p>
<dl class="section return"><dt>Returns</dt><dd>a <a class="el" 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> that provides the documents which should be permitted or prohibited in search results. <b>NOTE:</b> null can be returned if no documents will be accepted by this <a class="el" 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>. </dd></dl>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">reader</td><td>A <a class="el" href="_reader_util_8cs.html#a2a6914ea10bbe06764856e29e5674e66">IndexReader</a> instance opened on the index currently searched on. Note, it is likely that the provided reader does not represent the whole underlying index i.e. if the index has more than one segment the given reader only represents a single segment. </td></tr>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="_filter_8cs.html#a673a4822c0bf5f5fdadb59f7ad92338c">DocIdBitSet</a></dd></dl>
<p>Implements <a class="el" href="class_lucene_1_1_net_1_1_search_1_1_filter.html#a6acd9f9caec9c3a4adba5580593f76c7">Lucene.Net.Search.Filter</a>.</p>
<p>Definition at line <a class="el" href="_query_wrapper_filter_8cs_source.html#l00083">83</a> of file <a class="el" href="_query_wrapper_filter_8cs_source.html">QueryWrapperFilter.cs</a>.</p>
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<td class="memname">override int Lucene.Net.Search.QueryWrapperFilter.GetHashCode </td>
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<p>Definition at line <a class="el" href="_query_wrapper_filter_8cs_source.html#l00101">101</a> of file <a class="el" href="_query_wrapper_filter_8cs_source.html">QueryWrapperFilter.cs</a>.</p>
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<td class="memname">override System.String Lucene.Net.Search.QueryWrapperFilter.ToString </td>
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<p>Definition at line <a class="el" href="_query_wrapper_filter_8cs_source.html#l00089">89</a> of file <a class="el" href="_query_wrapper_filter_8cs_source.html">QueryWrapperFilter.cs</a>.</p>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li>core/Search/<a class="el" href="_query_wrapper_filter_8cs_source.html">QueryWrapperFilter.cs</a></li>
</ul>
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