<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <title>Soprano: Soprano::QueryResultIteratorBackend Class Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="doxygen.css" rel="stylesheet" type="text/css"/> </head> <body> <!-- Generated by Doxygen 1.7.1 --> <script type="text/javascript"> function hasClass(ele,cls) { return ele.className.match(new RegExp('(\\s|^)'+cls+'(\\s|$)')); } function addClass(ele,cls) { if (!this.hasClass(ele,cls)) ele.className += " "+cls; } function removeClass(ele,cls) { if (hasClass(ele,cls)) { var reg = new RegExp('(\\s|^)'+cls+'(\\s|$)'); ele.className=ele.className.replace(reg,' '); } } function toggleVisibility(linkObj) { var base = linkObj.getAttribute('id'); var summary = document.getElementById(base + '-summary'); var content 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QueryResultIterator.">QueryResultIteratorBackend</a> is the actual working horse behind <a class="el" href="classSoprano_1_1QueryResultIterator.html" title="An iterator for query results.">QueryResultIterator</a>. <a href="#_details">More...</a></p> <p><code>#include <<a class="el" href="queryresultiteratorbackend_8h_source.html">Soprano/QueryResultIteratorBackend</a>></code></p> <div id="dynsection-0" onclick="return toggleVisibility(this)" class="dynheader closed" style="cursor:pointer;"> <img id="dynsection-0-trigger" src="closed.png"/> Inheritance diagram for Soprano::QueryResultIteratorBackend:</div> <div id="dynsection-0-summary" class="dynsummary" style="display:block;"> </div> <div id="dynsection-0-content" class="dyncontent" style="display:none;"> <div class="center"><img src="classSoprano_1_1QueryResultIteratorBackend__inherit__graph.png" border="0" usemap="#Soprano_1_1QueryResultIteratorBackend_inherit__map" alt="Inheritance graph"/></div> <map name="Soprano_1_1QueryResultIteratorBackend_inherit__map" id="Soprano_1_1QueryResultIteratorBackend_inherit__map"> <area shape="rect" id="node2" href="classSoprano_1_1IteratorBackend.html" title="Soprano::IteratorBackend\< BindingSet \>" alt="" coords="5,181,261,211"/><area shape="rect" id="node4" href="classSoprano_1_1Error_1_1ErrorCache.html" title="Core class of Soprano's exception system." alt="" coords="65,5,244,35"/><area shape="rect" id="node6" href="classSoprano_1_1IteratorBackend.html" title="The actual work in a Iterator instance is done by an IteratorBackend." alt="" coords="149,85,352,115"/></map> <center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div> <p><a href="classSoprano_1_1QueryResultIteratorBackend-members.html">List of all members.</a></p> <table class="memberdecls"> <tr><td colspan="2"><h2><a name="pub-methods"></a> Public Member Functions</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classSoprano_1_1QueryResultIteratorBackend.html#ae05be346f32e9b39491b7c4457bfc6ed">~QueryResultIteratorBackend</a> ()</td></tr> <tr><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classSoprano_1_1QueryResultIteratorBackend.html#ac5c79bbec64ff3eea6c28b4d93812aae">next</a> ()=0</td></tr> <tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classSoprano_1_1BindingSet.html">BindingSet</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classSoprano_1_1QueryResultIteratorBackend.html#a04dad4d72a46f927d749c1c381c03ede">current</a> () const </td></tr> <tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classSoprano_1_1Statement.html">Statement</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classSoprano_1_1QueryResultIteratorBackend.html#a24873e50b3c7b8fa14a0b34ffcc2a7b6">currentStatement</a> () const =0</td></tr> <tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classSoprano_1_1Node.html">Node</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classSoprano_1_1QueryResultIteratorBackend.html#a100e8fd1ea4048ef8eb1d3d7024fdcf9">binding</a> (const <a class="elRef" href="qstring.html">QString</a> &name) const =0</td></tr> <tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classSoprano_1_1Node.html">Node</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classSoprano_1_1QueryResultIteratorBackend.html#ad702d2888fa355fb3795945c85b81123">binding</a> (int offset) const =0</td></tr> <tr><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classSoprano_1_1QueryResultIteratorBackend.html#af8e8bf4e373e02a8e566fa64543b0a43">bindingCount</a> () const =0</td></tr> <tr><td class="memItemLeft" align="right" valign="top">virtual <a class="elRef" href="qstringlist.html">QStringList</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classSoprano_1_1QueryResultIteratorBackend.html#a8e154188deae1c4fdfc2c687d5f7693a">bindingNames</a> () const =0</td></tr> <tr><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classSoprano_1_1QueryResultIteratorBackend.html#a88e3ad52c43e8517418768cfb7e46d7c">isGraph</a> () const =0</td></tr> <tr><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classSoprano_1_1QueryResultIteratorBackend.html#a26d965b6ac21b02624747247909d8581">isBinding</a> () const =0</td></tr> <tr><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classSoprano_1_1QueryResultIteratorBackend.html#a4df6ae46d64a356ec63cd5bf08f6236c">isBool</a> () const =0</td></tr> <tr><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classSoprano_1_1QueryResultIteratorBackend.html#a75ec3f71c7f0e4a87d385d82d12523d6">boolValue</a> () const =0</td></tr> <tr><td colspan="2"><h2><a name="pro-methods"></a> Protected Member Functions</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classSoprano_1_1QueryResultIteratorBackend.html#a4c976cd392c6afe20d371693cbd68a13">QueryResultIteratorBackend</a> ()</td></tr> </table> <hr/><a name="_details"></a><h2>Detailed Description</h2> <p><a class="el" href="classSoprano_1_1QueryResultIteratorBackend.html" title="QueryResultIteratorBackend is the actual working horse behind QueryResultIterator.">QueryResultIteratorBackend</a> is the actual working horse behind <a class="el" href="classSoprano_1_1QueryResultIterator.html" title="An iterator for query results.">QueryResultIterator</a>. </p> <p>Each <a class="el" href="classSoprano_1_1Backend.html" title="Soprano::Backend defines the interface for a Soprano backend plugin.">Backend</a> implementation has to have its own version of <a class="el" href="classSoprano_1_1QueryResultIteratorBackend.html" title="QueryResultIteratorBackend is the actual working horse behind QueryResultIterator.">QueryResultIteratorBackend</a>.</p> <dl class="author"><dt><b>Author:</b></dt><dd>Daniele Galdi <<a href="mailto:daniele.galdi@gmail.com">daniele.galdi@gmail.com</a>><br/> Sebastian Trueg <<a href="mailto:trueg@kde.org">trueg@kde.org</a>> </dd></dl> <p>Definition at line <a class="el" href="queryresultiteratorbackend_8h_source.html#l00046">46</a> of file <a class="el" href="queryresultiteratorbackend_8h_source.html">queryresultiteratorbackend.h</a>.</p> <hr/><h2>Constructor & Destructor Documentation</h2> <a class="anchor" id="ae05be346f32e9b39491b7c4457bfc6ed"></a><!-- doxytag: member="Soprano::QueryResultIteratorBackend::~QueryResultIteratorBackend" ref="ae05be346f32e9b39491b7c4457bfc6ed" args="()" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">virtual Soprano::QueryResultIteratorBackend::~QueryResultIteratorBackend </td> <td>(</td> <td class="paramname"></td> <td> ) </td> <td><code> [virtual]</code></td> </tr> </table> </div> <div class="memdoc"> </div> </div> <a class="anchor" id="a4c976cd392c6afe20d371693cbd68a13"></a><!-- doxytag: member="Soprano::QueryResultIteratorBackend::QueryResultIteratorBackend" ref="a4c976cd392c6afe20d371693cbd68a13" args="()" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">Soprano::QueryResultIteratorBackend::QueryResultIteratorBackend </td> <td>(</td> <td class="paramname"></td> <td> ) </td> <td><code> [protected]</code></td> </tr> </table> </div> <div class="memdoc"> </div> </div> <hr/><h2>Member Function Documentation</h2> <a class="anchor" id="ac5c79bbec64ff3eea6c28b4d93812aae"></a><!-- doxytag: member="Soprano::QueryResultIteratorBackend::next" ref="ac5c79bbec64ff3eea6c28b4d93812aae" args="()=0" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">virtual bool Soprano::QueryResultIteratorBackend::next </td> <td>(</td> <td class="paramname"></td> <td> ) </td> <td><code> [pure virtual]</code></td> </tr> </table> </div> <div class="memdoc"> <p>For internal reasons each backend implementation needs to always return <code>true</code> for boolean results.</p> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classSoprano_1_1Iterator.html#a1ba632f6f015242ab9441da77d48415b">QueryResultIterator::next</a> </dd></dl> <p>Implements <a class="el" href="classSoprano_1_1IteratorBackend.html#a4aeac0d9b6ef74e61d45982a49a69644">Soprano::IteratorBackend< BindingSet ></a>.</p> </div> </div> <a class="anchor" id="a04dad4d72a46f927d749c1c381c03ede"></a><!-- doxytag: member="Soprano::QueryResultIteratorBackend::current" ref="a04dad4d72a46f927d749c1c381c03ede" args="() const " --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">virtual <a class="el" href="classSoprano_1_1BindingSet.html">BindingSet</a> Soprano::QueryResultIteratorBackend::current </td> <td>(</td> <td class="paramname"></td> <td> ) </td> <td> const<code> [virtual]</code></td> </tr> </table> </div> <div class="memdoc"> <p>The default implementation constructs the <a class="el" href="classSoprano_1_1BindingSet.html" title="Represents one set of bindings in the result of a select query.">BindingSet</a> using <a class="el" href="classSoprano_1_1QueryResultIteratorBackend.html#a100e8fd1ea4048ef8eb1d3d7024fdcf9">binding()</a> and <a class="el" href="classSoprano_1_1QueryResultIteratorBackend.html#a8e154188deae1c4fdfc2c687d5f7693a">bindingNames()</a></p> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classSoprano_1_1Iterator.html#a7060834a96aced1bba25e760474ac22e">QueryResultIterator::current</a> </dd></dl> <p>Implements <a class="el" href="classSoprano_1_1IteratorBackend.html#a6913fdfd489c0e4e0978f59a466732f2">Soprano::IteratorBackend< BindingSet ></a>.</p> </div> </div> <a class="anchor" id="a24873e50b3c7b8fa14a0b34ffcc2a7b6"></a><!-- doxytag: member="Soprano::QueryResultIteratorBackend::currentStatement" ref="a24873e50b3c7b8fa14a0b34ffcc2a7b6" args="() const =0" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">virtual <a class="el" href="classSoprano_1_1Statement.html">Statement</a> Soprano::QueryResultIteratorBackend::currentStatement </td> <td>(</td> <td class="paramname"></td> <td> ) </td> <td> const<code> [pure virtual]</code></td> </tr> </table> </div> <div class="memdoc"> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classSoprano_1_1QueryResultIterator.html#ae12d1b77dc81089975f584d1bac8bff5">QueryResultIterator::currentStatement</a> </dd></dl> </div> </div> <a class="anchor" id="a100e8fd1ea4048ef8eb1d3d7024fdcf9"></a><!-- doxytag: member="Soprano::QueryResultIteratorBackend::binding" ref="a100e8fd1ea4048ef8eb1d3d7024fdcf9" args="(const QString &name) const =0" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">virtual <a class="el" href="classSoprano_1_1Node.html">Node</a> Soprano::QueryResultIteratorBackend::binding </td> <td>(</td> <td class="paramtype">const <a class="elRef" href="qstring.html">QString</a> & </td> <td class="paramname"> <em>name</em></td> <td> ) </td> <td> const<code> [pure virtual]</code></td> </tr> </table> </div> <div class="memdoc"> <dl class="see"><dt><b>See also:</b></dt><dd>QueryResultIterator::binding(const QString&) </dd></dl> </div> </div> <a class="anchor" id="ad702d2888fa355fb3795945c85b81123"></a><!-- doxytag: member="Soprano::QueryResultIteratorBackend::binding" ref="ad702d2888fa355fb3795945c85b81123" args="(int offset) const =0" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">virtual <a class="el" href="classSoprano_1_1Node.html">Node</a> Soprano::QueryResultIteratorBackend::binding </td> <td>(</td> <td class="paramtype">int </td> <td class="paramname"> <em>offset</em></td> <td> ) </td> <td> const<code> [pure virtual]</code></td> </tr> </table> </div> <div class="memdoc"> <dl class="see"><dt><b>See also:</b></dt><dd>QueryResultIterator::binding(int) </dd></dl> </div> </div> <a class="anchor" id="af8e8bf4e373e02a8e566fa64543b0a43"></a><!-- doxytag: member="Soprano::QueryResultIteratorBackend::bindingCount" ref="af8e8bf4e373e02a8e566fa64543b0a43" args="() const =0" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">virtual int Soprano::QueryResultIteratorBackend::bindingCount </td> <td>(</td> <td class="paramname"></td> <td> ) </td> <td> const<code> [pure virtual]</code></td> </tr> </table> </div> <div class="memdoc"> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classSoprano_1_1QueryResultIterator.html#a174b9537f99f5b8f77cf8a81072f086d">QueryResultIterator::bindingCount</a> </dd></dl> </div> </div> <a class="anchor" id="a8e154188deae1c4fdfc2c687d5f7693a"></a><!-- doxytag: member="Soprano::QueryResultIteratorBackend::bindingNames" ref="a8e154188deae1c4fdfc2c687d5f7693a" args="() const =0" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">virtual <a class="elRef" href="qstringlist.html">QStringList</a> Soprano::QueryResultIteratorBackend::bindingNames </td> <td>(</td> <td class="paramname"></td> <td> ) </td> <td> const<code> [pure virtual]</code></td> </tr> </table> </div> <div class="memdoc"> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classSoprano_1_1QueryResultIterator.html#ace6fd8bd8f50a9c5f844e2375de8dd75">QueryResultIterator::bindingNames</a> </dd></dl> </div> </div> <a class="anchor" id="a88e3ad52c43e8517418768cfb7e46d7c"></a><!-- doxytag: member="Soprano::QueryResultIteratorBackend::isGraph" ref="a88e3ad52c43e8517418768cfb7e46d7c" args="() const =0" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">virtual bool Soprano::QueryResultIteratorBackend::isGraph </td> <td>(</td> <td class="paramname"></td> <td> ) </td> <td> const<code> [pure virtual]</code></td> </tr> </table> </div> <div class="memdoc"> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classSoprano_1_1QueryResultIterator.html#af2baa54907bb00c42914f300999b03fc">QueryResultIterator::isGraph</a> </dd></dl> </div> </div> <a class="anchor" id="a26d965b6ac21b02624747247909d8581"></a><!-- doxytag: member="Soprano::QueryResultIteratorBackend::isBinding" ref="a26d965b6ac21b02624747247909d8581" args="() const =0" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">virtual bool Soprano::QueryResultIteratorBackend::isBinding </td> <td>(</td> <td class="paramname"></td> <td> ) </td> <td> const<code> [pure virtual]</code></td> </tr> </table> </div> <div class="memdoc"> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classSoprano_1_1QueryResultIterator.html#a525628dfafcc4b0d47d555c12699fe41">QueryResultIterator::isBinding</a> </dd></dl> </div> </div> <a class="anchor" id="a4df6ae46d64a356ec63cd5bf08f6236c"></a><!-- doxytag: member="Soprano::QueryResultIteratorBackend::isBool" ref="a4df6ae46d64a356ec63cd5bf08f6236c" args="() const =0" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">virtual bool Soprano::QueryResultIteratorBackend::isBool </td> <td>(</td> <td class="paramname"></td> <td> ) </td> <td> const<code> [pure virtual]</code></td> </tr> </table> </div> <div class="memdoc"> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classSoprano_1_1QueryResultIterator.html#a9b3e90c00c2a77f20e199d7a1243394d">QueryResultIterator::isBool</a> </dd></dl> </div> </div> <a class="anchor" id="a75ec3f71c7f0e4a87d385d82d12523d6"></a><!-- doxytag: member="Soprano::QueryResultIteratorBackend::boolValue" ref="a75ec3f71c7f0e4a87d385d82d12523d6" args="() const =0" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">virtual bool Soprano::QueryResultIteratorBackend::boolValue </td> <td>(</td> <td class="paramname"></td> <td> ) </td> <td> const<code> [pure virtual]</code></td> </tr> </table> </div> <div class="memdoc"> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classSoprano_1_1QueryResultIterator.html#a70996b0f1c492e712a7cfb2a2c3b4127">QueryResultIterator::boolValue</a> </dd></dl> </div> </div> <hr/>The documentation for this class was generated from the following file:<ul> <li>/builddir/build/BUILD/soprano-2.5.2/soprano/<a class="el" href="queryresultiteratorbackend_8h_source.html">queryresultiteratorbackend.h</a></li> </ul> </div> <hr class="footer"/><address class="footer"><small>Generated on Thu Oct 21 2010 for Soprano by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.1 </small></address> </body> </html>