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<a href="#pub-methods">Public Member Functions</a> |
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<h1>Soprano::IteratorBackend< T > Class Template Reference</h1> </div>
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<!-- doxytag: class="Soprano::IteratorBackend" --><!-- doxytag: inherits="Soprano::Error::ErrorCache" -->
<p>The actual work in a <a class="el" href="classSoprano_1_1Iterator.html" title="The basic Soprano iterator class.">Iterator</a> instance is done by an <a class="el" href="classSoprano_1_1IteratorBackend.html" title="The actual work in a Iterator instance is done by an IteratorBackend.">IteratorBackend</a>.
<a href="#_details">More...</a></p>
<p><code>#include <<a class="el" href="iteratorbackend_8h_source.html">Soprano/IteratorBackend</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::IteratorBackend< T >:</div>
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<div class="center"><img src="classSoprano_1_1IteratorBackend__inherit__graph.png" border="0" usemap="#Soprano_1_1IteratorBackend_3_01T_01_4_inherit__map" alt="Inheritance graph"/></div>
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<area shape="rect" id="node5" href="classSoprano_1_1IteratorBackend.html" title="Soprano::IteratorBackend\< BindingSet \>" alt="" coords="5,181,261,211"/><area shape="rect" id="node2" href="classSoprano_1_1Error_1_1ErrorCache.html" title="Core class of Soprano's exception system." alt="" coords="44,5,223,35"/><area shape="rect" id="node7" href="classSoprano_1_1QueryResultIteratorBackend.html" title="QueryResultIteratorBackend is the actual working horse behind QueryResultIterator." alt="" coords="12,261,255,291"/></map>
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<p><a href="classSoprano_1_1IteratorBackend-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_1IteratorBackend.html#a072814b3fc8382c3ccb4da11ce8ebc3c">~IteratorBackend</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_1IteratorBackend.html#a4aeac0d9b6ef74e61d45982a49a69644">next</a> ()=0</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual T </td><td class="memItemRight" valign="bottom"><a class="el" href="classSoprano_1_1IteratorBackend.html#a6913fdfd489c0e4e0978f59a466732f2">current</a> () const =0</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classSoprano_1_1IteratorBackend.html#a019516ce69cc7e52623ec22fd4aa4a57">close</a> ()=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_1IteratorBackend.html#a4248a39694eccaa6007259010c57bd25">IteratorBackend</a> ()</td></tr>
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<hr/><a name="_details"></a><h2>Detailed Description</h2>
<h3>template<class T><br/>
class Soprano::IteratorBackend< T ></h3>
<p>The actual work in a <a class="el" href="classSoprano_1_1Iterator.html" title="The basic Soprano iterator class.">Iterator</a> instance is done by an <a class="el" href="classSoprano_1_1IteratorBackend.html" title="The actual work in a Iterator instance is done by an IteratorBackend.">IteratorBackend</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="iteratorbackend_8h_source.html#l00039">39</a> of file <a class="el" href="iteratorbackend_8h_source.html">iteratorbackend.h</a>.</p>
<hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="a072814b3fc8382c3ccb4da11ce8ebc3c"></a><!-- doxytag: member="Soprano::IteratorBackend::~IteratorBackend" ref="a072814b3fc8382c3ccb4da11ce8ebc3c" args="()" -->
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template<class T> </div>
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<td class="memname">virtual <a class="el" href="classSoprano_1_1IteratorBackend.html">Soprano::IteratorBackend</a>< T >::~<a class="el" href="classSoprano_1_1IteratorBackend.html">IteratorBackend</a> </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td><code> [inline, virtual]</code></td>
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<p>Definition at line <a class="el" href="iteratorbackend_8h_source.html#l00042">42</a> of file <a class="el" href="iteratorbackend_8h_source.html">iteratorbackend.h</a>.</p>
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<a class="anchor" id="a4248a39694eccaa6007259010c57bd25"></a><!-- doxytag: member="Soprano::IteratorBackend::IteratorBackend" ref="a4248a39694eccaa6007259010c57bd25" args="()" -->
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template<class T> </div>
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<td class="memname"><a class="el" href="classSoprano_1_1IteratorBackend.html">Soprano::IteratorBackend</a>< T >::<a class="el" href="classSoprano_1_1IteratorBackend.html">IteratorBackend</a> </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td><code> [inline, protected]</code></td>
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<p>Definition at line <a class="el" href="iteratorbackend_8h_source.html#l00079">79</a> of file <a class="el" href="iteratorbackend_8h_source.html">iteratorbackend.h</a>.</p>
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<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a4aeac0d9b6ef74e61d45982a49a69644"></a><!-- doxytag: member="Soprano::IteratorBackend::next" ref="a4aeac0d9b6ef74e61d45982a49a69644" args="()=0" -->
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template<class T> </div>
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<td class="memname">virtual bool <a class="el" href="classSoprano_1_1IteratorBackend.html">Soprano::IteratorBackend</a>< T >::next </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td><code> [pure virtual]</code></td>
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<p>Advance to the next element in the iterator.</p>
<p>Implementations of this method should reset the error by eith calling <a class="el" href="classSoprano_1_1Error_1_1ErrorCache.html#a65f952db676de0a6a186ea872fca18b8">clearError()</a> or <a class="el" href="classSoprano_1_1Error_1_1ErrorCache.html#afd1a1eccaa2af733601eab1f019a8553">setError()</a>.</p>
<dl class="return"><dt><b>Returns:</b></dt><dd>true if there is another and false if the end has been reached.</dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classSoprano_1_1Iterator.html#a1ba632f6f015242ab9441da77d48415b">Iterator::next()</a> </dd></dl>
<p>Implemented in <a class="el" href="classSoprano_1_1QueryResultIteratorBackend.html#ac5c79bbec64ff3eea6c28b4d93812aae">Soprano::QueryResultIteratorBackend</a>.</p>
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<a class="anchor" id="a6913fdfd489c0e4e0978f59a466732f2"></a><!-- doxytag: member="Soprano::IteratorBackend::current" ref="a6913fdfd489c0e4e0978f59a466732f2" args="() const =0" -->
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<td class="memname">virtual T <a class="el" href="classSoprano_1_1IteratorBackend.html">Soprano::IteratorBackend</a>< T >::current </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td> const<code> [pure virtual]</code></td>
</tr>
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<p>Get the element the iterator currently points to.</p>
<p>Implementations of this method should reset the error by eith calling <a class="el" href="classSoprano_1_1Error_1_1ErrorCache.html#a65f952db676de0a6a186ea872fca18b8">clearError()</a> or <a class="el" href="classSoprano_1_1Error_1_1ErrorCache.html#afd1a1eccaa2af733601eab1f019a8553">setError()</a>.</p>
<dl class="return"><dt><b>Returns:</b></dt><dd>the current element.</dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classSoprano_1_1Iterator.html#a7060834a96aced1bba25e760474ac22e">Iterator::current()</a> </dd></dl>
<p>Implemented in <a class="el" href="classSoprano_1_1QueryResultIteratorBackend.html#a04dad4d72a46f927d749c1c381c03ede">Soprano::QueryResultIteratorBackend</a>.</p>
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<a class="anchor" id="a019516ce69cc7e52623ec22fd4aa4a57"></a><!-- doxytag: member="Soprano::IteratorBackend::close" ref="a019516ce69cc7e52623ec22fd4aa4a57" args="()=0" -->
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<td class="memname">virtual void <a class="el" href="classSoprano_1_1IteratorBackend.html">Soprano::IteratorBackend</a>< T >::close </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td><code> [pure virtual]</code></td>
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<p>Close the iterator and release any locks on the underlying <a class="el" href="classSoprano_1_1Model.html" title="A Model is the central class in Soprano. It is a queryable collection of RDF quadruples, i.e statements.">Model</a>.</p>
<p>Implementations of this method should reset the error by eith calling <a class="el" href="classSoprano_1_1Error_1_1ErrorCache.html#a65f952db676de0a6a186ea872fca18b8">clearError()</a> or <a class="el" href="classSoprano_1_1Error_1_1ErrorCache.html#afd1a1eccaa2af733601eab1f019a8553">setError()</a>.</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classSoprano_1_1Iterator.html#a623fb6440a6cfadbb560bd7738c01871">Iterator::close()</a> </dd></dl>
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<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="iteratorbackend_8h_source.html">iteratorbackend.h</a></li>
</ul>
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