﻿<html xmlns:MSHelp="http://msdn.microsoft.com/mshelp" xmlns:mshelp="http://msdn.microsoft.com/mshelp" xmlns:ddue="http://ddue.schemas.microsoft.com/authoring/2003/5" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:msxsl="urn:schemas-microsoft-com:xslt"><head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8" /><META NAME="save" CONTENT="history" /><title>MergeScheduler Class</title><meta name="Language" content="en-us" /><meta name="System.Keywords" content="MergeScheduler class" /><meta name="System.Keywords" content="Lucene.Net.Index.MergeScheduler class" /><meta name="System.Keywords" content="MergeScheduler class, about MergeScheduler class" /><meta name="Microsoft.Help.F1" content="Lucene.Net.Index.MergeScheduler" /><meta name="Microsoft.Help.Id" content="T:Lucene.Net.Index.MergeScheduler" /><meta name="Description" content="Expert: {@link IndexWriter} uses an instance implementing this interface to execute the merges selected by a {@link MergePolicy}. 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            implementing this interface to execute the merges
            selected by a {@link MergePolicy}.  The default
            MergeScheduler is {@link ConcurrentMergeScheduler}.<p /><p /><b>NOTE:</b> This API is new and still experimental
            (subject to change suddenly in the next release)<p /><p /><b>NOTE</b>: This class typically requires access to
            package-private APIs (eg, SegmentInfos) to do its job;
            if you implement your own MergePolicy, you'll need to put
            it in package Lucene.Net.Index in order to use
            these APIs.
            </div><p /><b>Namespace:</b> <a href="4d52bcdb-050f-b66e-6d74-d7169ebc88b0.htm">Lucene.Net.Index</a><br /><b>Assembly:</b> <span sdata="assembly">Lucene.Net</span> (in Lucene.Net.dll) Version: 2.9.4.1<h1 class="heading"><span onclick="ExpandCollapse(syntaxToggle)" style="cursor:default;" onkeypress="ExpandCollapse_CheckKey(syntaxToggle, event)" tabindex="0"><img id="syntaxToggle" class="toggle" name="toggleSwitch" src="../icons/collapse_all.gif" />Syntax</span></h1><div id="syntaxSection" class="section" name="collapseableSection" style=""><div id="syntaxCodeBlocks" class="code"><span codeLanguage="CSharp"><table><tr><th>C#</th></tr><tr><td><pre xml:space="preserve"><span class="keyword">public</span> <span class="keyword">abstract</span> <span class="keyword">class</span> <span class="identifier">MergeScheduler</span></pre></td></tr></table></span><span codeLanguage="VisualBasicDeclaration"><table><tr><th>Visual Basic</th></tr><tr><td><pre xml:space="preserve"><span class="keyword">Public</span> <span class="keyword">MustInherit</span> <span class="keyword">Class</span> <span class="identifier">MergeScheduler</span></pre></td></tr></table></span><span codeLanguage="ManagedCPlusPlus"><table><tr><th>Visual C++</th></tr><tr><td><pre xml:space="preserve"><span class="keyword">public</span> <span class="keyword">ref class</span> <span class="identifier">MergeScheduler</span> <span class="keyword">abstract</span></pre></td></tr></table></span></div></div><h1 class="heading"><span onclick="ExpandCollapse(familyToggle)" style="cursor:default;" onkeypress="ExpandCollapse_CheckKey(familyToggle, event)" tabindex="0"><img id="familyToggle" class="toggle" name="toggleSwitch" src="../icons/collapse_all.gif" />Inheritance Hierarchy</span></h1><div id="familySection" class="section" name="collapseableSection" style=""><a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">System<span class="languageSpecificText"><span class="cs">.</span><span class="vb">.</span><span class="cpp">::</span><span class="nu">.</span><span class="fs">.</span></span>Object</a><br />  <span class="selflink">Lucene.Net.Index<span class="languageSpecificText"><span class="cs">.</span><span class="vb">.</span><span class="cpp">::</span><span class="nu">.</span><span class="fs">.</span></span>MergeScheduler</span><br />    <a href="d608c25a-fe23-8812-8015-9c2894409ce7.htm">Lucene.Net.Index<span class="languageSpecificText"><span class="cs">.</span><span class="vb">.</span><span class="cpp">::</span><span class="nu">.</span><span class="fs">.</span></span>ConcurrentMergeScheduler</a><br />    <a href="96d89741-4a1c-ea9d-a9cc-ef6ec9a21dbf.htm">Lucene.Net.Index<span class="languageSpecificText"><span class="cs">.</span><span class="vb">.</span><span class="cpp">::</span><span class="nu">.</span><span class="fs">.</span></span>SerialMergeScheduler</a><br /></div><h1 class="heading"><span onclick="ExpandCollapse(seeAlsoToggle)" style="cursor:default;" onkeypress="ExpandCollapse_CheckKey(seeAlsoToggle, event)" tabindex="0"><img id="seeAlsoToggle" class="toggle" name="toggleSwitch" src="../icons/collapse_all.gif" />See Also</span></h1><div id="seeAlsoSection" class="section" name="collapseableSection" style=""><div class="seeAlsoStyle"><a href="9cc93015-f956-a39d-d7e0-baa314a95a6e.htm">MergeScheduler Members</a></div><div class="seeAlsoStyle"><a href="4d52bcdb-050f-b66e-6d74-d7169ebc88b0.htm">Lucene.Net.Index Namespace</a></div></div></div><div id="footer"><div class="footerLine"><img width="100%" height="3px" src="../icons/footer.gif" alt="Footer image" title="Footer image" /></div><A NAME="feedback"></A><span id="fb" class="feedbackcss"></span></div></div></body></html>