| <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>Close Method </title><meta name="Language" content="en-us" /><meta name="Microsoft.Help.Id" content="M:Lucene.Net.Index.IndexWriter.Close" /><meta name="Description" content="Commits all changes to an index and closes all associated files. 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Note that this may be a costly operation, so, try to re-use a single writer instead of closing and opening a new one. 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| associated files. Note that this may be a costly |
| operation, so, try to re-use a single writer instead of |
| closing and opening a new one. See {@link #Commit()} for |
| caveats about write caching done by some IO devices. |
| |
| <p /> If an Exception is hit during close, eg due to disk |
| full or some other reason, then both the on-disk index |
| and the internal state of the IndexWriter instance will |
| be consistent. However, the close will not be complete |
| even though part of it (flushing buffered documents) |
| may have succeeded, so the write lock will still be |
| held.<p /><p /> If you can correct the underlying cause (eg free up |
| some disk space) then you can call close() again. |
| Failing that, if you want to force the write lock to be |
| released (dangerous, because you may then lose buffered |
| docs in the IndexWriter instance) then you can do |
| something like this:<p /><pre> |
| try { |
| writer.close(); |
| } finally { |
| if (IndexWriter.isLocked(directory)) { |
| IndexWriter.unlock(directory); |
| } |
| } |
| </pre> |
| |
| after which, you must be certain not to use the writer |
| instance anymore.<p /><p /><b>NOTE</b>: if this method hits an OutOfMemoryError |
| you should immediately close the writer, again. See <a href="#OOME">above</a> for details.<p /></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">virtual</span> <span class="keyword">void</span> <span class="identifier">Close</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">Overridable</span> <span class="keyword">Sub</span> <span class="identifier">Close</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">virtual</span> <span class="keyword">void</span> <span class="identifier">Close</span>()</pre></td></tr></table></span></div></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="cfb56f63-f6d1-efdf-e1eb-54ef6f901cd1.htm">IndexWriter Class</a></div><div class="seeAlsoStyle"><a href="43b0e7df-ac8e-b0c4-2120-87eeb6a203e8.htm">Close Overload</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> |
