Sophie

Sophie

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        KDE 4.4 PyKDE API Reference
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<h1>Model Class Reference</h1>
<code>from PyKDE4.soprano import *</code>
<p>
Inherits: <a href="http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/qobject.html">QObject</a>,Soprano.Error.ErrorCache<br />
Subclasses: <a href="../soprano/Soprano.Util.DummyModel.html">Soprano.Util.DummyModel</a>, <a href="../soprano/Soprano.FilterModel.html">Soprano.FilterModel</a>, <a href="../soprano/Soprano.Client.SparqlModel.html">Soprano.Client.SparqlModel</a>, <a href="../soprano/Soprano.StorageModel.html">Soprano.StorageModel</a><br />
Namespace: Soprano.Model<br />
<h2>Detailed Description</h2>

<p>\class Model model.h Soprano/Model
</p>
<p>
A Model is the central class in %Soprano. It is a queryable
collection of RDF quadruples, i.e statements.
</p>
<p>
Model itself is just an interface for numerous implementations. (If you are looking for a simple container
for statements, see Graph.) There are basically two types of Models in %Soprano:
</p>
<p>
<li> StorageModel is the base class for Model implementations that actually store RDF quadruples. </li>
StorageModels are created transparently by %Soprano backend plugins: Backend.createModel()
<li> FilterModel is the base class for all filter models. FilterModels can be stacked on top of </li>
a StorageModel to perform arbitrary tasks like inference or actual content filtering. An
important FilterModel is Inference.InferenceModel.
</p>
<p>
The simplest way to create a memory Model is to use the default Backend:
</p>
<p>
<pre class="fragment">
 Model* memModel = Soprano.createModel();
</pre>
</p>
<p>
<b>%Error handling:</b>
</p>
<p>
Model is based on %Soprano's own error handling system which tries to emulate exceptions to a certain extend.
Most methods in Model have a means of reporting if an operation was successful or not. For additional error
information Model inherits ErrorCache which provides the method lastError().
</p>
<p>
Thus, advanced error handling would look as follows:
</p>
<p>
<pre class="fragment">
 Soprano.Model* model = Soprano.createModel();
 Soprano.Statement invalidStatement;
 if( model-&gt;addStatement( invalidStatement ) != Error.ErrorNone ) {
    showErrorMessage( model-&gt;lastError().message() );
 }
</pre>
</p>
<p>
For this to work properly Model implementations have to reset the error in each method
by either calling clearError() or setError().
</p>
<p>
\sa soprano_error_handling
</p>
<p>
Model is thread-safe when used with a thread-safe backend (all "official" %Soprano backends are thread-safe).
However, it is recommended to create Model instances in the main thread.
</p>
<p>

<dl class="author" compact><dt><b>Author:</b></dt><dd> Daniele Galdi &lt;daniele.galdi@gmail.com&gt;<br>Sebastian Trueg &lt;trueg@kde.org&gt; </dd></dl>
</p>
<table border="0" cellpadding="0" cellspacing="0"><tr><td colspan="2"><br><h2>Signals</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#statementAdded">statementAdded</a> (, <a href="../soprano/Soprano.Statement.html">Soprano.Statement</a> statement)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#statementRemoved">statementRemoved</a> (, <a href="../soprano/Soprano.Statement.html">Soprano.Statement</a> statement)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#statementsAdded">statementsAdded</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#statementsRemoved">statementsRemoved</a> ()</td></tr>
<tr><td colspan="2"><br><h2>Methods</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#Model">__init__</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#Model">__init__</a> (self, <a href="../soprano/Soprano.Model.html">Soprano.Model</a> a0)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.Error.html#ErrorCode">Soprano.Error.ErrorCode</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#addStatement">addStatement</a> (self, <a href="../soprano/Soprano.Statement.html">Soprano.Statement</a> statement)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.Error.html#ErrorCode">Soprano.Error.ErrorCode</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#addStatement">addStatement</a> (self, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> subject, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> predicate, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> object, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> context=Soprano.Node())</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.Error.html#ErrorCode">Soprano.Error.ErrorCode</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#addStatements">addStatements</a> (self, [<a href="../soprano/Soprano.Statement.html">Soprano.Statement</a>] statements)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#containsAnyStatement">containsAnyStatement</a> (self, <a href="../soprano/Soprano.Statement.html">Soprano.Statement</a> statement)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#containsAnyStatement">containsAnyStatement</a> (self, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> subject, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> predicate, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> object, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> context=Soprano.Node())</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#containsContext">containsContext</a> (self, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> context)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#containsStatement">containsStatement</a> (self, <a href="../soprano/Soprano.Statement.html">Soprano.Statement</a> statement)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#containsStatement">containsStatement</a> (self, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> subject, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> predicate, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> object, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> context=Soprano.Node())</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#createBlankNode">createBlankNode</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.QueryResultIterator.html">Soprano.QueryResultIterator</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#executeQuery">executeQuery</a> (self, <a href="http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/qstring.html">QString</a> query, <a href="../soprano/Soprano.Query.html#QueryLanguage">Soprano.Query.QueryLanguage</a> language, <a href="http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/qstring.html">QString</a> userQueryLanguage=QString())</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#isEmpty">isEmpty</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.NodeIterator.html">Soprano.NodeIterator</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#listContexts">listContexts</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.StatementIterator.html">Soprano.StatementIterator</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#listStatements">listStatements</a> (self, <a href="../soprano/Soprano.Statement.html">Soprano.Statement</a> partial)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.StatementIterator.html">Soprano.StatementIterator</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#listStatements">listStatements</a> (self, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> subject, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> predicate, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> object, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> context=Soprano.Node())</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.StatementIterator.html">Soprano.StatementIterator</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#listStatements">listStatements</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.StatementIterator.html">Soprano.StatementIterator</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#listStatementsInContext">listStatementsInContext</a> (self, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> context)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.Error.html#ErrorCode">Soprano.Error.ErrorCode</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#removeAllStatements">removeAllStatements</a> (self, <a href="../soprano/Soprano.Statement.html">Soprano.Statement</a> statement)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.Error.html#ErrorCode">Soprano.Error.ErrorCode</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#removeAllStatements">removeAllStatements</a> (self, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> subject, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> predicate, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> object, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> context=Soprano.Node())</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.Error.html#ErrorCode">Soprano.Error.ErrorCode</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#removeAllStatements">removeAllStatements</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.Error.html#ErrorCode">Soprano.Error.ErrorCode</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#removeContext">removeContext</a> (self, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> a0)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.Error.html#ErrorCode">Soprano.Error.ErrorCode</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#removeStatement">removeStatement</a> (self, <a href="../soprano/Soprano.Statement.html">Soprano.Statement</a> statement)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.Error.html#ErrorCode">Soprano.Error.ErrorCode</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#removeStatement">removeStatement</a> (self, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> subject, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> predicate, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> object, <a href="../soprano/Soprano.Node.html">Soprano.Node</a> context=Soprano.Node())</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.Error.html#ErrorCode">Soprano.Error.ErrorCode</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#removeStatements">removeStatements</a> (self, [<a href="../soprano/Soprano.Statement.html">Soprano.Statement</a>] statements)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#statementAdded">statementAdded</a> (self, <a href="../soprano/Soprano.Statement.html">Soprano.Statement</a> statement)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#statementCount">statementCount</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#statementRemoved">statementRemoved</a> (self, <a href="../soprano/Soprano.Statement.html">Soprano.Statement</a> statement)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#statementsAdded">statementsAdded</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#statementsRemoved">statementsRemoved</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.Error.html#ErrorCode">Soprano.Error.ErrorCode</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#write">write</a> (self, <a href="http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/qtextstream.html">QTextStream</a> os)</td></tr>
</table>
<hr><h2>Method Documentation</h2><a class="anchor" name="Model"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">__init__</td>
<td>(</td>
<td class="paramtype">&nbsp;</td>
<td class="paramname"><em>self</em>&nbsp;)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Model instances are not meant to be copied.
</p></div></div><a class="anchor" name="Model"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">__init__</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Model.html">Soprano.Model</a>&nbsp;</td>
<td class="paramname"><em>a0</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Model instances are not meant to be copied.
</p></div></div><a class="anchor" name="addStatement"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.Error.html#ErrorCode">Soprano.Error.ErrorCode</a> addStatement</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Statement.html">Soprano.Statement</a>&nbsp;</td>
<td class="paramname"><em>statement</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><dl compact><dt><b>Abstract method:</b></dt><dd>This method is abstract and can be overridden but not called directly.</dd></dl><p>
</p></div></div><a class="anchor" name="addStatement"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.Error.html#ErrorCode">Soprano.Error.ErrorCode</a> addStatement</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>subject</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>predicate</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>object</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>context=Soprano.Node()</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>
</p></div></div><a class="anchor" name="addStatements"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.Error.html#ErrorCode">Soprano.Error.ErrorCode</a> addStatements</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">[<a href="../soprano/Soprano.Statement.html">Soprano.Statement</a>]&nbsp;</td>
<td class="paramname"><em>statements</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>
</p></div></div><a class="anchor" name="containsAnyStatement"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">bool containsAnyStatement</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Statement.html">Soprano.Statement</a>&nbsp;</td>
<td class="paramname"><em>statement</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><dl compact><dt><b>Abstract method:</b></dt><dd>This method is abstract and can be overridden but not called directly.</dd></dl><p>
</p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>subject</em>&nbsp;</td><td> The subject node to match. Can be empty as a wildcard.
</td></tr> </table></dl>
<p> </p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>predicate</em>&nbsp;</td><td> The predicate node to match. Can be empty as a wildcard.
</td></tr> </table></dl>
<p> </p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>object</em>&nbsp;</td><td> The object node to match. Can be empty as a wildcard.
</td></tr> </table></dl>
<p> </p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>context</em>&nbsp;</td><td> The context node to match. Can be empty as a wildcard.
</td></tr>
</table></dl>
<p>
</p></div></div><a class="anchor" name="containsAnyStatement"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">bool containsAnyStatement</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>subject</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>predicate</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>object</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>context=Soprano.Node()</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>
</p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>subject</em>&nbsp;</td><td> The subject node to match. Can be empty as a wildcard.
</td></tr> </table></dl>
<p> </p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>predicate</em>&nbsp;</td><td> The predicate node to match. Can be empty as a wildcard.
</td></tr> </table></dl>
<p> </p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>object</em>&nbsp;</td><td> The object node to match. Can be empty as a wildcard.
</td></tr> </table></dl>
<p> </p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>context</em>&nbsp;</td><td> The context node to match. Can be empty as a wildcard.
</td></tr>
</table></dl>
<p>
</p></div></div><a class="anchor" name="containsContext"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">bool containsContext</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>context</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Convenience method which is based on containsAnyStatement
</p></div></div><a class="anchor" name="containsStatement"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">bool containsStatement</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Statement.html">Soprano.Statement</a>&nbsp;</td>
<td class="paramname"><em>statement</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><dl compact><dt><b>Abstract method:</b></dt><dd>This method is abstract and can be overridden but not called directly.</dd></dl><p>
</p></div></div><a class="anchor" name="containsStatement"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">bool containsStatement</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>subject</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>predicate</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>object</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>context=Soprano.Node()</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>
</p></div></div><a class="anchor" name="createBlankNode"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.Node.html">Soprano.Node</a> createBlankNode</td>
<td>(</td>
<td class="paramtype">&nbsp;</td>
<td class="paramname"><em>self</em>&nbsp;)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><dl compact><dt><b>Abstract method:</b></dt><dd>This method is abstract and can be overridden but not called directly.</dd></dl><p>Creates a new blank node with a unique identifier.
</p>
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> A blank node that can be used to create new statements.
</dd></dl>
</p></div></div><a class="anchor" name="executeQuery"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.QueryResultIterator.html">Soprano.QueryResultIterator</a> executeQuery</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/qstring.html">QString</a>&nbsp;</td>
<td class="paramname"><em>query</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Query.html#QueryLanguage">Soprano.Query.QueryLanguage</a>&nbsp;</td>
<td class="paramname"><em>language</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/qstring.html">QString</a>&nbsp;</td>
<td class="paramname"><em>userQueryLanguage=QString()</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><dl compact><dt><b>Abstract method:</b></dt><dd>This method is abstract and can be overridden but not called directly.</dd></dl><p>Execute the given query over the Model.
</p>
<p>
This is a const read-only method. As such Model implementations should not
support SPARQL extensions such as INSERT or UPDATE through this method.
A future version of %Soprano will provide an additional API for queries
that change the Model.
</p>
<p>
</p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>query</em>&nbsp;</td><td> The query to evaluate.
</td></tr> </table></dl>
<p> </p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>language</em>&nbsp;</td><td> The %query language used to encode <b>query.</b>
</td></tr> </table></dl>
<p> </p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>userQueryLanguage</em>&nbsp;</td><td> If <b>language</b> equals Query.QueryLanguageUser
userQueryLanguage defines the language to use.
</td></tr>
</table></dl>
<p> <dl class="return" compact><dt><b>Returns:</b></dt><dd> An iterator over all results matching the query,
on error an invalid iterator is returned.
</dd></dl>
</p></div></div><a class="anchor" name="isEmpty"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">bool isEmpty</td>
<td>(</td>
<td class="paramtype">&nbsp;</td>
<td class="paramname"><em>self</em>&nbsp;)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><dl compact><dt><b>Abstract method:</b></dt><dd>This method is abstract and can be overridden but not called directly.</dd></dl><p><dl class="return" compact><dt><b>Returns:</b></dt><dd> true if the Model doesn't contains any Statement.
</dd></dl>
</p></div></div><a class="anchor" name="listContexts"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.NodeIterator.html">Soprano.NodeIterator</a> listContexts</td>
<td>(</td>
<td class="paramtype">&nbsp;</td>
<td class="paramname"><em>self</em>&nbsp;)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><dl compact><dt><b>Abstract method:</b></dt><dd>This method is abstract and can be overridden but not called directly.</dd></dl><p>List all contexts in the model, i.e. all named graphs.
</p>
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> An iterator over context Nodes, on error an invalid iterator is returned.
</dd></dl>
</p></div></div><a class="anchor" name="listStatements"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.StatementIterator.html">Soprano.StatementIterator</a> listStatements</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Statement.html">Soprano.Statement</a>&nbsp;</td>
<td class="paramname"><em>partial</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><dl compact><dt><b>Abstract method:</b></dt><dd>This method is abstract and can be overridden but not called directly.</dd></dl><p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> An iterator for all statements in the model, on error an invalid iterator is returned.
</dd></dl>
</p></div></div><a class="anchor" name="listStatements"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.StatementIterator.html">Soprano.StatementIterator</a> listStatements</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>subject</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>predicate</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>object</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>context=Soprano.Node()</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> An iterator for all statements in the model, on error an invalid iterator is returned.
</dd></dl>
</p></div></div><a class="anchor" name="listStatements"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.StatementIterator.html">Soprano.StatementIterator</a> listStatements</td>
<td>(</td>
<td class="paramtype">&nbsp;</td>
<td class="paramname"><em>self</em>&nbsp;)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> An iterator for all statements in the model, on error an invalid iterator is returned.
</dd></dl>
</p></div></div><a class="anchor" name="listStatementsInContext"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.StatementIterator.html">Soprano.StatementIterator</a> listStatementsInContext</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>context</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Convenience method which lists all statements in context.
</p>
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> An iterator for all the matched Statements, on error an invalid iterator is returned.
</dd></dl>
</p></div></div><a class="anchor" name="removeAllStatements"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.Error.html#ErrorCode">Soprano.Error.ErrorCode</a> removeAllStatements</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Statement.html">Soprano.Statement</a>&nbsp;</td>
<td class="paramname"><em>statement</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><dl compact><dt><b>Abstract method:</b></dt><dd>This method is abstract and can be overridden but not called directly.</dd></dl><p>Convenience method that clear the Model of all statements
</p></div></div><a class="anchor" name="removeAllStatements"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.Error.html#ErrorCode">Soprano.Error.ErrorCode</a> removeAllStatements</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>subject</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>predicate</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>object</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>context=Soprano.Node()</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Convenience method that clear the Model of all statements
</p></div></div><a class="anchor" name="removeAllStatements"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.Error.html#ErrorCode">Soprano.Error.ErrorCode</a> removeAllStatements</td>
<td>(</td>
<td class="paramtype">&nbsp;</td>
<td class="paramname"><em>self</em>&nbsp;)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Convenience method that clear the Model of all statements
</p></div></div><a class="anchor" name="removeContext"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.Error.html#ErrorCode">Soprano.Error.ErrorCode</a> removeContext</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>a0</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Convenience method that removes all statements in the context.
</p></div></div><a class="anchor" name="removeStatement"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.Error.html#ErrorCode">Soprano.Error.ErrorCode</a> removeStatement</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Statement.html">Soprano.Statement</a>&nbsp;</td>
<td class="paramname"><em>statement</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><dl compact><dt><b>Abstract method:</b></dt><dd>This method is abstract and can be overridden but not called directly.</dd></dl><p>
</p></div></div><a class="anchor" name="removeStatement"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.Error.html#ErrorCode">Soprano.Error.ErrorCode</a> removeStatement</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>subject</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>predicate</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>object</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Node.html">Soprano.Node</a>&nbsp;</td>
<td class="paramname"><em>context=Soprano.Node()</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>
</p></div></div><a class="anchor" name="removeStatements"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.Error.html#ErrorCode">Soprano.Error.ErrorCode</a> removeStatements</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">[<a href="../soprano/Soprano.Statement.html">Soprano.Statement</a>]&nbsp;</td>
<td class="paramname"><em>statements</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Convenience method which removes all %statements in statements.
</p></div></div><a class="anchor" name="statementAdded"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> statementAdded</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Statement.html">Soprano.Statement</a>&nbsp;</td>
<td class="paramname"><em>statement</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Notification signal for new statements. Model implementations
should emit this signal for each newly added statement.
</p><dl compact><dt><b>Signal syntax:</b></dt><dd><code>QObject.connect(source, SIGNAL("statementAdded(const Soprano::Statement&)"), target_slot)</code></dd></dl></div></div><a class="anchor" name="statementCount"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">int statementCount</td>
<td>(</td>
<td class="paramtype">&nbsp;</td>
<td class="paramname"><em>self</em>&nbsp;)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><dl compact><dt><b>Abstract method:</b></dt><dd>This method is abstract and can be overridden but not called directly.</dd></dl><p>The number of statements stored in this Model.
<dl class="return" compact><dt><b>Returns:</b></dt><dd> The size of the Model, or -1 on error.
</dd></dl>
</p></div></div><a class="anchor" name="statementRemoved"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> statementRemoved</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.Statement.html">Soprano.Statement</a>&nbsp;</td>
<td class="paramname"><em>statement</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Notification signal for removed statements. Model implementations
should emit this signal for each removed statement.
</p>
<p>
<dl class="warning" compact><dt><b>Warning:</b></dt><dd> Backends may choose not to emit this signal for each
removed statement but only for a statement pattern (i.e. an
invalid statement as used in removeAllStatements()) to
prevent massive performance loss.
</dd></dl>
</p><dl compact><dt><b>Signal syntax:</b></dt><dd><code>QObject.connect(source, SIGNAL("statementRemoved(const Soprano::Statement&)"), target_slot)</code></dd></dl></div></div><a class="anchor" name="statementsAdded"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> statementsAdded</td>
<td>(</td>
<td class="paramtype">&nbsp;</td>
<td class="paramname"><em>self</em>&nbsp;)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Emitted when new statements have been added to the model.
</p>
<p>
Implementations of this interface have to emit this signal.
</p><dl compact><dt><b>Signal syntax:</b></dt><dd><code>QObject.connect(source, SIGNAL("statementsAdded()"), target_slot)</code></dd></dl></div></div><a class="anchor" name="statementsRemoved"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> statementsRemoved</td>
<td>(</td>
<td class="paramtype">&nbsp;</td>
<td class="paramname"><em>self</em>&nbsp;)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Emitted when statements have been removed from the model.
</p>
<p>
Implementations of this interface have to emit this signal.
</p><dl compact><dt><b>Signal syntax:</b></dt><dd><code>QObject.connect(source, SIGNAL("statementsRemoved()"), target_slot)</code></dd></dl></div></div><a class="anchor" name="write"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.Error.html#ErrorCode">Soprano.Error.ErrorCode</a> write</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/qtextstream.html">QTextStream</a>&nbsp;</td>
<td class="paramname"><em>os</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Write all statements in this Model to os.
</p>
<p>
Default implementation is based on Model.listStatements
</p></div></div>
</div>
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