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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>Class Poco::Data::Extraction</title>
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<meta name="author" content="Applied Informatics Software Engineering GmbH and Contributors"/>
<meta name="publisher" content="Applied Informatics Software Engineering GmbH and Contributors"/>
<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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<div class="header">
<h1 class="namespace"><a href="Poco.Data.html" class="namespace">Poco::Data</a></h1>
<h1 class="template">template < class T ></h1>
<h1 class="symbol">class Extraction</h1>
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<div class="body">
<p>
<b>Library:</b> Data<br />
<b>Package:</b> DataCore<br />
<b>Header:</b> Poco/Data/Extraction.h</p>
<h2>Description</h2>
<div class="description">
<p>Concrete <a href="Poco.Data.html" title="namespace Poco::Data">Data</a> Type specific extraction of values from a query result set. </p>
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<h2>Inheritance</h2>
<p><b>Direct Base Classes: </b><a href="Poco.Data.AbstractExtraction.html" title="class Poco::Data::AbstractExtraction">AbstractExtraction</a></p>
<p><b>All Base Classes: </b><a href="Poco.Data.AbstractExtraction.html" title="class Poco::Data::AbstractExtraction">AbstractExtraction</a>, <a href="Poco.RefCountedObject.html" title="class Poco::RefCountedObject">Poco::RefCountedObject</a></p>
<h2>Member Summary</h2>
<p><b>Member Functions: </b><a href="Poco.Data.Extraction.html#2687" title="Poco::Data::Extraction::createPrepareObject()">createPrepareObject</a>, <a href="Poco.Data.Extraction.html#2684" title="Poco::Data::Extraction::extract()">extract</a>, <a href="Poco.Data.Extraction.html#2681" title="Poco::Data::Extraction::numOfColumnsHandled()">numOfColumnsHandled</a>, <a href="Poco.Data.Extraction.html#2683" title="Poco::Data::Extraction::numOfRowsAllowed()">numOfRowsAllowed</a>, <a href="Poco.Data.Extraction.html#2682" title="Poco::Data::Extraction::numOfRowsHandled()">numOfRowsHandled</a>, <a href="Poco.Data.Extraction.html#2686" title="Poco::Data::Extraction::reset()">reset</a></p>
<p><b>Inherited Functions: </b><a href="Poco.Data.AbstractExtraction.html#2146" title="Poco::Data::AbstractExtraction::createPrepareObject()">createPrepareObject</a>, <a href="Poco.RefCountedObject.html#9659" title="Poco::RefCountedObject::duplicate()">duplicate</a>, <a href="Poco.Data.AbstractExtraction.html#2143" title="Poco::Data::AbstractExtraction::extract()">extract</a>, <a href="Poco.Data.AbstractExtraction.html#2139" title="Poco::Data::AbstractExtraction::getExtractor()">getExtractor</a>, <a href="Poco.Data.AbstractExtraction.html#2151" title="Poco::Data::AbstractExtraction::getLimit()">getLimit</a>, <a href="Poco.Data.AbstractExtraction.html#2140" title="Poco::Data::AbstractExtraction::numOfColumnsHandled()">numOfColumnsHandled</a>, <a href="Poco.Data.AbstractExtraction.html#2142" title="Poco::Data::AbstractExtraction::numOfRowsAllowed()">numOfRowsAllowed</a>, <a href="Poco.Data.AbstractExtraction.html#2141" title="Poco::Data::AbstractExtraction::numOfRowsHandled()">numOfRowsHandled</a>, <a href="Poco.RefCountedObject.html#9661" title="Poco::RefCountedObject::referenceCount()">referenceCount</a>, <a href="Poco.RefCountedObject.html#9660" title="Poco::RefCountedObject::release()">release</a>, <a href="Poco.Data.AbstractExtraction.html#2145" title="Poco::Data::AbstractExtraction::reset()">reset</a>, <a href="Poco.Data.AbstractExtraction.html#2137" title="Poco::Data::AbstractExtraction::setExtractor()">setExtractor</a>, <a href="Poco.Data.AbstractExtraction.html#2149" title="Poco::Data::AbstractExtraction::setLimit()">setLimit</a></p>
<h2>Constructors</h2>
<h3><a name="2675">Extraction</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl"><a href="Poco.Data.Extraction.html" title="class Poco::Data::Extraction">Extraction</a>(<br /> T & result<br />);</p>
<div class="description">
<p>Creates an <a href="Poco.Data.Extraction.html" title="class Poco::Data::Extraction">Extraction</a> object, uses an empty object T as default value </p>
</div>
<h3><a name="2677">Extraction</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl"><a href="Poco.Data.Extraction.html" title="class Poco::Data::Extraction">Extraction</a>(<br /> T & result,<br /> const T & def<br />);</p>
<div class="description">
<p>Creates an <a href="Poco.Data.Extraction.html" title="class Poco::Data::Extraction">Extraction</a> object, uses the provided def object as default value </p>
</div>
<h2>Destructor</h2>
<h3><a name="2680">~Extraction</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">~<a href="Poco.Data.Extraction.html" title="class Poco::Data::Extraction">Extraction</a>();</p>
<div class="description">
<p>Destroys the <a href="Poco.Data.Extraction.html" title="class Poco::Data::Extraction">Extraction</a> object. </p>
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<h2>Member Functions</h2>
<h3><a name="2687">createPrepareObject</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl"><a href="Poco.Data.AbstractPrepare.html" title="class Poco::Data::AbstractPrepare">AbstractPrepare</a> * createPrepareObject(<br /> <a href="Poco.Data.AbstractPreparation.html" title="class Poco::Data::AbstractPreparation">AbstractPreparation</a> * pPrep,<br /> std::size_t pos<br />) const;</p>
<div class="description">
<p></p>
</div>
<div class="description"><p><b>See also:</b> <a href="Poco.Data.AbstractExtraction.html#2146" title="Poco::Data::AbstractExtraction::createPrepareObject()">Poco::Data::AbstractExtraction::createPrepareObject()</a></p></div>
<h3><a name="2684">extract</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">void extract(<br /> std::size_t pos<br />);</p>
<div class="description">
<p></p>
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<div class="description"><p><b>See also:</b> <a href="Poco.Data.AbstractExtraction.html#2143" title="Poco::Data::AbstractExtraction::extract()">Poco::Data::AbstractExtraction::extract()</a></p></div>
<h3><a name="2681">numOfColumnsHandled</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">std::size_t numOfColumnsHandled() const;</p>
<div class="description">
<p></p>
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<div class="description"><p><b>See also:</b> <a href="Poco.Data.AbstractExtraction.html#2140" title="Poco::Data::AbstractExtraction::numOfColumnsHandled()">Poco::Data::AbstractExtraction::numOfColumnsHandled()</a></p></div>
<h3><a name="2683">numOfRowsAllowed</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">std::size_t numOfRowsAllowed() const;</p>
<div class="description">
<p></p>
</div>
<div class="description"><p><b>See also:</b> <a href="Poco.Data.AbstractExtraction.html#2142" title="Poco::Data::AbstractExtraction::numOfRowsAllowed()">Poco::Data::AbstractExtraction::numOfRowsAllowed()</a></p></div>
<h3><a name="2682">numOfRowsHandled</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">std::size_t numOfRowsHandled() const;</p>
<div class="description">
<p></p>
</div>
<div class="description"><p><b>See also:</b> <a href="Poco.Data.AbstractExtraction.html#2141" title="Poco::Data::AbstractExtraction::numOfRowsHandled()">Poco::Data::AbstractExtraction::numOfRowsHandled()</a></p></div>
<h3><a name="2686">reset</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">void reset();</p>
<div class="description">
<p></p>
</div>
<div class="description"><p><b>See also:</b> <a href="Poco.Data.AbstractExtraction.html#2145" title="Poco::Data::AbstractExtraction::reset()">Poco::Data::AbstractExtraction::reset()</a></p></div>
<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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