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<title>Xapian: API Documentation: xapian-core: Xapian::ValueRangeProcessor Struct Reference</title>
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<a class="el" href="namespaceXapian.html">Xapian</a>::<a class="el" href="structXapian_1_1ValueRangeProcessor.html">ValueRangeProcessor</a></div>
<h1>Xapian::ValueRangeProcessor Struct Reference</h1><!-- doxytag: class="Xapian::ValueRangeProcessor" -->Base class for value range processors.
<a href="#_details">More...</a>
<p>
Inheritance diagram for Xapian::ValueRangeProcessor:<p><center><img src="structXapian_1_1ValueRangeProcessor__inherit__graph.png" border="0" usemap="#Xapian_1_1ValueRangeProcessor__inherit__map" alt="Inheritance graph"></center>
<map name="Xapian_1_1ValueRangeProcessor__inherit__map">
<area shape="rect" href="classXapian_1_1DateValueRangeProcessor.html" title="Handle a date range." alt="" coords="5,84,245,111"><area shape="rect" href="classXapian_1_1NumberValueRangeProcessor.html" title="Handle a number range." alt="" coords="269,84,531,111"><area shape="rect" href="classXapian_1_1StringValueRangeProcessor.html" title="Handle a string range." alt="" coords="555,84,803,111"></map>
<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center><a href="structXapian_1_1ValueRangeProcessor-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="structXapian_1_1ValueRangeProcessor.html#4c86d4054e21a86deed714c2dfb3be03">~ValueRangeProcessor</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <a href="#4c86d4054e21a86deed714c2dfb3be03"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <a class="el" href="namespaceXapian.html#e163c06958fa73cfac44a38c3eea5c10">Xapian::valueno</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structXapian_1_1ValueRangeProcessor.html#0c3ee8124495c66c5caedbf93d54699b">operator()</a> (std::string &begin, std::string &end)=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Check for a valid range of this type. <a href="#0c3ee8124495c66c5caedbf93d54699b"></a><br></td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
Base class for value range processors.
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<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="4c86d4054e21a86deed714c2dfb3be03"></a><!-- doxytag: member="Xapian::ValueRangeProcessor::~ValueRangeProcessor" ref="4c86d4054e21a86deed714c2dfb3be03" args="()" -->
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<td class="memname">virtual Xapian::ValueRangeProcessor::~ValueRangeProcessor </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td width="100%"><code> [virtual]</code></td>
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<p>
Destructor.
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="0c3ee8124495c66c5caedbf93d54699b"></a><!-- doxytag: member="Xapian::ValueRangeProcessor::operator()" ref="0c3ee8124495c66c5caedbf93d54699b" args="(std::string &begin, std::string &end)=0" -->
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<td class="memname">virtual <a class="el" href="namespaceXapian.html#e163c06958fa73cfac44a38c3eea5c10">Xapian::valueno</a> Xapian::ValueRangeProcessor::operator() </td>
<td>(</td>
<td class="paramtype">std::string & </td>
<td class="paramname"> <em>begin</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">std::string & </td>
<td class="paramname"> <em>end</em></td><td> </td>
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<td></td>
<td>)</td>
<td></td><td></td><td width="100%"><code> [pure virtual]</code></td>
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<p>
Check for a valid range of this type.
<p>
If this <a class="el" href="structXapian_1_1ValueRangeProcessor.html" title="Base class for value range processors.">ValueRangeProcessor</a> recognises BEGIN..END it returns the value number to range filter on. Otherwise it returns <a class="el" href="namespaceXapian.html#0a100329c2c04d4683a77615b7ed6e8e" title="Reserved value to indicate "no valueno".">Xapian::BAD_VALUENO</a>.
<p>
Implemented in <a class="el" href="classXapian_1_1StringValueRangeProcessor.html#94faebc78763ec1844620a05e92629e9">Xapian::StringValueRangeProcessor</a>, <a class="el" href="classXapian_1_1DateValueRangeProcessor.html#095db25cae04127be7877399247b9f71">Xapian::DateValueRangeProcessor</a>, and <a class="el" href="classXapian_1_1NumberValueRangeProcessor.html#22c71cbf39d988104620c53492a147cb">Xapian::NumberValueRangeProcessor</a>.
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<hr>The documentation for this struct was generated from the following file:<ul>
<li>xapian/<a class="el" href="queryparser_8h.html">queryparser.h</a></ul>
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Documentation for Xapian (version 1.0.21).<br>
Generated on 18 Jun 2010 by
<a href="http://www.doxygen.org/">Doxygen 1.5.2</a>.
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