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<title>Class Poco::Data::InternalExtraction</title>
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<meta name="copyright" content="Copyright (c) 2009, Applied Informatics Software Engineering GmbH and Contributors"/>
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<meta name="date" content="2009-11-24"/>
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<h1 class="namespace"><a href="Poco.Data.html" class="namespace">Poco::Data</a></h1>
<h1 class="template">template < class T, class C = std::vector < T > ></h1>
<h1 class="symbol">class InternalExtraction</h1>
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<p>
<b>Library:</b> Data<br />
<b>Package:</b> DataCore<br />
<b>Header:</b> Poco/Data/Extraction.h</p>
<h2>Description</h2>
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<p>Vector <a href="Poco.Data.html" title="namespace Poco::Data">Data</a> Type specialization for extraction of values from a query result set. List <a href="Poco.Data.html" title="namespace Poco::Data">Data</a> Type specialization for extraction of values from a query result set. Container <a href="Poco.Data.html" title="namespace Poco::Data">Data</a> Type specialization extension for extraction of values from a query result set. </p>
<p>This class is intended for PocoData internal use - it is used by <a href="Poco.Data.StatementImpl.html" title="class Poco::Data::StatementImpl">StatementImpl</a> to automaticaly create internal <a href="Poco.Data.Extraction.html" title="class Poco::Data::Extraction">Extraction</a> in cases when statement returns data and no external storage was supplied. It is later used by <a href="Poco.Data.RecordSet.html" title="class Poco::Data::RecordSet">RecordSet</a> to retrieve the fetched data after statement execution. It takes ownership of the <a href="Poco.Data.Column.html" title="class Poco::Data::Column">Column</a> pointer supplied as constructor argument. <a href="Poco.Data.Column.html" title="class Poco::Data::Column">Column</a> object, in turn owns the data vector pointer. </p>
<p><a href="Poco.Data.InternalExtraction.html" title="class Poco::Data::InternalExtraction">InternalExtraction</a> objects can not be copied or assigned. </p>
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<h2>Inheritance</h2>
<p><b>Direct Base Classes: </b>Extraction < C ></p>
<p><b>All Base Classes: </b>Extraction < C ></p>
<h2>Member Summary</h2>
<p><b>Member Functions: </b><a href="Poco.Data.InternalExtraction.html#2701" title="Poco::Data::InternalExtraction::column()">column</a>, <a href="Poco.Data.InternalExtraction.html#2698" title="Poco::Data::InternalExtraction::reset()">reset</a>, <a href="Poco.Data.InternalExtraction.html#2699" title="Poco::Data::InternalExtraction::value()">value</a></p>
<h2>Constructors</h2>
<h3><a name="2694">InternalExtraction</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">explicit <a href="Poco.Data.InternalExtraction.html" title="class Poco::Data::InternalExtraction">InternalExtraction</a>(<br /> C & result,<br /> <a href="Poco.Data.Column.html" title="class Poco::Data::Column">Column</a> < T > * pColumn<br />);</p>
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<p>Creates <a href="Poco.Data.InternalExtraction.html" title="class Poco::Data::InternalExtraction">InternalExtraction</a>. </p>
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<h2>Destructor</h2>
<h3><a name="2697">~InternalExtraction</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">~<a href="Poco.Data.InternalExtraction.html" title="class Poco::Data::InternalExtraction">InternalExtraction</a>();</p>
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<p>Destroys <a href="Poco.Data.InternalExtraction.html" title="class Poco::Data::InternalExtraction">InternalExtraction</a>. </p>
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<h2>Member Functions</h2>
<h3><a name="2701">column</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">const <a href="Poco.Data.Column.html" title="class Poco::Data::Column">Column</a> < T > & column() const;</p>
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<p></p>
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<h3><a name="2698">reset</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">void reset();</p>
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<p></p>
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<h3><a name="2699">value</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">const T & value(<br /> int index<br />) const;</p>
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<p></p>
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<p class="footer">POCO C++ Libraries 1.3.6-all<br />
Copyright © 2009, <a href="http://pocoproject.org/" target="_blank">Applied Informatics Software Engineering GmbH and Contributors</a></p>
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