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<?xml version="1.0" encoding="UTF-8"?>
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<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
<title>Soprano.PluginManager</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<div>
<img alt ="" src="../common/top-kde.jpg"/>
KDE 4.9 PyKDE API Reference
</div>
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<ul>
<li>KDE's Python API</li>
</ul>
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<h1>PluginManager Class Reference</h1>
<code>from PyKDE4.soprano import *</code>
<p>
Inherits: QObject<br />
Namespace: <a href="../soprano/Soprano.html">Soprano</a><br />
<h2>Detailed Description</h2>
<p>\class PluginManager pluginmanager.h Soprano/PluginManager
</p>
<p>
The PluginManager loads and maintains all %Soprano plugins.
</p>
<p>
Normally there is no need to use this class as all important methods have
global counterparts in the Soprano namespace.
</p>
<p>
\sa soprano_writing_plugins
</p>
<p>
<dl class="author" compact><dt><b>Author:</b></dt><dd> Sebastian Trueg <trueg@kde.org> </dd></dl>
</p>
<table border="0" cellpadding="0" cellspacing="0"><tr><td colspan="2"><br><h2>Methods</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#PluginManager">__init__</a> (self, QObject parent=0)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">[<a href="../soprano/Soprano.Backend.html">Soprano.Backend</a>] </td><td class="memItemRight" valign="bottom"><a class="el" href="#allBackends">allBackends</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">[<a href="../soprano/Soprano.Parser.html">Soprano.Parser</a>] </td><td class="memItemRight" valign="bottom"><a class="el" href="#allParsers">allParsers</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">[<a href="../soprano/Soprano.Serializer.html">Soprano.Serializer</a>] </td><td class="memItemRight" valign="bottom"><a class="el" href="#allSerializers">allSerializers</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.Backend.html">Soprano.Backend</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#discoverBackendByFeatures">discoverBackendByFeatures</a> (self, <a href="../soprano/Soprano.html">Soprano.BackendFeatures</a> features, QStringList userFeatures=QStringList())</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.Backend.html">Soprano.Backend</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#discoverBackendByName">discoverBackendByName</a> (self, QString name)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.Parser.html">Soprano.Parser</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#discoverParserByName">discoverParserByName</a> (self, QString name)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.Parser.html">Soprano.Parser</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#discoverParserForSerialization">discoverParserForSerialization</a> (self, <a href="../soprano/Soprano.html#RdfSerialization">Soprano.RdfSerialization</a> serialization, QString userSerialization=QString())</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.Serializer.html">Soprano.Serializer</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#discoverSerializerByName">discoverSerializerByName</a> (self, QString name)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.Serializer.html">Soprano.Serializer</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#discoverSerializerForSerialization">discoverSerializerForSerialization</a> (self, <a href="../soprano/Soprano.html#RdfSerialization">Soprano.RdfSerialization</a> serialization, QString userSerialization=QString())</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.Backend.html">Soprano.Backend</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#loadCustomBackend">loadCustomBackend</a> (self, QString path)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.Parser.html">Soprano.Parser</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#loadCustomParser">loadCustomParser</a> (self, QString path)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="#loadCustomPlugin">loadCustomPlugin</a> (self, QString path)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.Serializer.html">Soprano.Serializer</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#loadCustomSerializer">loadCustomSerializer</a> (self, QString path)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#setPluginSearchPath">setPluginSearchPath</a> (self, QStringList path, bool useDefaults=1)</td></tr>
<tr><td colspan="2"><br><h2>Static Methods</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../soprano/Soprano.PluginManager.html">Soprano.PluginManager</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#instance">instance</a> ()</td></tr>
</table>
<hr><h2>Method Documentation</h2><a class="anchor" name="PluginManager"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">__init__</td>
<td>(</td>
<td class="paramtype"> <em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QObject </td>
<td class="paramname"><em>parent=0</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="allBackends"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">[<a href="../soprano/Soprano.Backend.html">Soprano.Backend</a>] allBackends</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="allParsers"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">[<a href="../soprano/Soprano.Parser.html">Soprano.Parser</a>] allParsers</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="allSerializers"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">[<a href="../soprano/Soprano.Serializer.html">Soprano.Serializer</a>] allSerializers</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="discoverBackendByFeatures"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.Backend.html">Soprano.Backend</a> discoverBackendByFeatures</td>
<td>(</td>
<td class="paramtype"> <em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.html">Soprano.BackendFeatures</a> </td>
<td class="paramname"><em>features</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QStringList </td>
<td class="paramname"><em>userFeatures=QStringList()</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Find a backend plugin by its features.
</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>features</em> </td><td> The features that are requested, a combination of Soprano.BackendFeature flags.
</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>userFeatures</em> </td><td> If features contain Backend.BackendFeatureUser this paramter states the additionally requested user features.
</td></tr>
</table></dl>
<p> <dl class="return" compact><dt><b>Returns:</b></dt><dd> a Backend that supports the features defined in <b>features.</b>
</dd></dl>
</p></div></div><a class="anchor" name="discoverBackendByName"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.Backend.html">Soprano.Backend</a> discoverBackendByName</td>
<td>(</td>
<td class="paramtype"> <em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QString </td>
<td class="paramname"><em>name</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Find a backend plugin by its name.
</p>
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> the backend specified by <b>name</b> or null if could not
be found.
</dd></dl>
</p></div></div><a class="anchor" name="discoverParserByName"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.Parser.html">Soprano.Parser</a> discoverParserByName</td>
<td>(</td>
<td class="paramtype"> <em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QString </td>
<td class="paramname"><em>name</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Find a parser plugin by its name.
</p>
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> the parser specified by <b>name</b> or null if could not
be found.
</dd></dl>
</p></div></div><a class="anchor" name="discoverParserForSerialization"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.Parser.html">Soprano.Parser</a> discoverParserForSerialization</td>
<td>(</td>
<td class="paramtype"> <em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.html#RdfSerialization">Soprano.RdfSerialization</a> </td>
<td class="paramname"><em>serialization</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QString </td>
<td class="paramname"><em>userSerialization=QString()</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Find a Parser instance that is able to parse RDF data serialized as
serialization.
</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>serialization</em> </td><td> The requested serialization.
</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>userSerialization</em> </td><td> If serialization is set to Soprano.SerializationUser this parameter specifies the
serialization to use. It allows the extension of the %Soprano Parser interface with new
RDF serializations that are not officially supported by %Soprano.
</td></tr>
</table></dl>
<p> <dl class="return" compact><dt><b>Returns:</b></dt><dd> A Parser plugin that can parse RDF data encoded in the requested
serialization or 0 if no such plugin could be found.
</dd></dl>
</p></div></div><a class="anchor" name="discoverSerializerByName"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.Serializer.html">Soprano.Serializer</a> discoverSerializerByName</td>
<td>(</td>
<td class="paramtype"> <em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QString </td>
<td class="paramname"><em>name</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Find a serializer plugin by its name.
</p>
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> the serializer specified by <b>name</b> or null if could not
be found.
</dd></dl>
</p></div></div><a class="anchor" name="discoverSerializerForSerialization"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.Serializer.html">Soprano.Serializer</a> discoverSerializerForSerialization</td>
<td>(</td>
<td class="paramtype"> <em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../soprano/Soprano.html#RdfSerialization">Soprano.RdfSerialization</a> </td>
<td class="paramname"><em>serialization</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QString </td>
<td class="paramname"><em>userSerialization=QString()</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Find a Serializer instance that is able to encode RDF data using
serialization.
</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>serialization</em> </td><td> The requested serialization.
</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>userSerialization</em> </td><td> If serialization is set to Soprano.SerializationUser this parameter specifies the
serialization to use. It allows the extension of the %Soprano Serializer interface with new
RDF serializations that are not officially supported by %Soprano.
</td></tr>
</table></dl>
<p> <dl class="return" compact><dt><b>Returns:</b></dt><dd> A Serializer plugin that can serialize RDF data encoded in the requested
serialization or 0 if no such plugin could be found.
</dd></dl>
</p></div></div><a class="anchor" name="loadCustomBackend"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.Backend.html">Soprano.Backend</a> loadCustomBackend</td>
<td>(</td>
<td class="paramtype"> <em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QString </td>
<td class="paramname"><em>path</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Load a custom Backend plugin from a library at the specified path.
</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>path</em> </td><td> The path to the library file that contains the plugin.
</td></tr>
</table></dl>
<p> PluginManager uses the name the plugin provides (Plugin.pluginName)
to manage the plugin.
</p>
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> The loaded Backend plugin or 0 in case no suported plugin could
be found at path or the found plugin is not a backend.
</dd></dl> </p>
<p>
<dl class="since" compact><dt><b>Since:</b></dt><dd> 2.3
</dd></dl>
</p></div></div><a class="anchor" name="loadCustomParser"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.Parser.html">Soprano.Parser</a> loadCustomParser</td>
<td>(</td>
<td class="paramtype"> <em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QString </td>
<td class="paramname"><em>path</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Load a custom Parser plugin from a library at the specified path.
</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>path</em> </td><td> The path to the library file that contains the plugin.
</td></tr>
</table></dl>
<p> PluginManager uses the name the plugin provides (Plugin.pluginName)
to manage the plugin.
</p>
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> The loaded Parser plugin or 0 in case no suported plugin could
be found at path or the found plugin is not a backend.
</dd></dl> </p>
<p>
<dl class="since" compact><dt><b>Since:</b></dt><dd> 2.3
</dd></dl>
</p></div></div><a class="anchor" name="loadCustomPlugin"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">bool loadCustomPlugin</td>
<td>(</td>
<td class="paramtype"> <em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QString </td>
<td class="paramname"><em>path</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Load a custom plugin from a library at the specified path.
</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>path</em> </td><td> The path to the library file that contains the plugin. Be aware that
plugins loaded via this method do not need a desktop file as described
</td></tr>
</table></dl>
<p> PluginManager uses the name the plugin provides (Plugin.pluginName)
to manage the plugin.
</p>
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> <b>true</b> if the plugin could be loaded successfully, <b>false</b>
if no suported plugin could be found at path.
</dd></dl> </p>
<p>
<dl class="since" compact><dt><b>Since:</b></dt><dd> 2.3
</dd></dl>
</p></div></div><a class="anchor" name="loadCustomSerializer"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.Serializer.html">Soprano.Serializer</a> loadCustomSerializer</td>
<td>(</td>
<td class="paramtype"> <em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QString </td>
<td class="paramname"><em>path</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Load a custom Serializer plugin from a library at the specified path.
</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>path</em> </td><td> The path to the library file that contains the plugin.
</td></tr>
</table></dl>
<p> PluginManager uses the name the plugin provides (Plugin.pluginName)
to manage the plugin.
</p>
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> The loaded Serializer plugin or 0 in case no suported plugin could
be found at path or the found plugin is not a backend.
</dd></dl> </p>
<p>
<dl class="since" compact><dt><b>Since:</b></dt><dd> 2.3
</dd></dl>
</p></div></div><a class="anchor" name="setPluginSearchPath"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> setPluginSearchPath</td>
<td>(</td>
<td class="paramtype"> <em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QStringList </td>
<td class="paramname"><em>path</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">bool </td>
<td class="paramname"><em>useDefaults=1</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Set the plugin search path. The PluginManager searches a set of folders for installed
plugins. Here a plugin consists of a desktop file describing it and the actual plugin
library file. For loading custom plugins manually see loadCustomPlugin.
</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>path</em> </td><td> The folders that PluginManager should search for plugin description files.
</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>useDefaults</em> </td><td> If true PluginManager will also search the default plugin paths
</td></tr>
</table></dl>
<p> \sa soprano_writing_plugins
</p>
<p>
<dl class="since" compact><dt><b>Since:</b></dt><dd> 2.3
</dd></dl>
</p></div></div><hr><h2>Static Method Documentation</h2><a class="anchor" name="instance"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../soprano/Soprano.PluginManager.html">Soprano.PluginManager</a> instance</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname">)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Get the singleton instance of the PluginManager
</p></div></div>
</div>
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