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KDE 4.9 PyKDE API Reference
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<h1>KDBusServiceStarter Class Reference</h1>
<code>from PyKDE4.kio import *</code>
<p>
<h2>Detailed Description</h2>
<p>A generic DBUS service starter, using KServiceTypeTrader.
The default implementation starts new processes, but this interface can
also be reimplemented by specific applications to provide dlopened in-process DBus objects.
This interface is similar to the startServiceByName() function found in QDBusBusService, but
with the added benefit of using KTrader (and, therefore, additional constraints and the
ability to search the standard KDE dirs).
<dl class="author" compact><dt><b>Author:</b></dt><dd> David Faure <faure@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="#KDBusServiceStarter">__init__</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="#findServiceFor">findServiceFor</a> (self, QString serviceType, QString constraint=QString(), QString error=0, QString dbusService=0, int flags=0)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="#startServiceFor">startServiceFor</a> (self, QString serviceType, QString constraint=QString(), QString error=0, QString dbusService=0, int flags=0)</td></tr>
<tr><td colspan="2"><br><h2>Static Methods</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../kio/KDBusServiceStarter.html">KDBusServiceStarter</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#self">self</a> ()</td></tr>
</table>
<hr><h2>Method Documentation</h2><a class="anchor" name="KDBusServiceStarter"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">__init__</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="findServiceFor"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">int findServiceFor</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>serviceType</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QString </td>
<td class="paramname"><em>constraint=QString()</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QString </td>
<td class="paramname"><em>error=0</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QString </td>
<td class="paramname"><em>dbusService=0</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>flags=0</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Check if a given DBus service is available - from the serviceType it's supposed to implement.
</p>
<p>
The trader is queried to find the preferred application for this serviceType,
with the constraint that its X-DBus-ServiceName property must be defined.
Then the DBus server is checked. If the service is not available,
this method will call startServiceFor to start it.
</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>serviceType</em> </td><td> the type of service we're looking for
<tr><td></td><td valign="top"><em>constraint</em> </td><td> see KServiceTypeTrader
<tr><td></td><td valign="top"><em>error</em> </td><td> On failure, <b>error</b> contains a description of the error
that occurred. If the pointer is 0, the argument will be
ignored
<tr><td></td><td valign="top"><em>dbusService</em> </td><td> On success, <b>dbusService</b> contains the DBus service name
under which this service is available. If the pointer is 0 the argument
will be ignored
<tr><td></td><td valign="top"><em>flags</em> </td><td> for future extensions (currently unused)
</td></tr>
</table></dl>
<p> <dl class="return" compact><dt><b>Returns:</b></dt><dd> an error code indicating success (== 0) or failure (> 0).
</dd></dl>
</p></div></div><a class="anchor" name="startServiceFor"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">int startServiceFor</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>serviceType</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QString </td>
<td class="paramname"><em>constraint=QString()</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QString </td>
<td class="paramname"><em>error=0</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QString </td>
<td class="paramname"><em>dbusService=0</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>flags=0</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Find an implementation of the given <b>serviceType,</b>
and start it, to use its DBus interface.
The default implementation uses KServiceTypeTrader to find the preferred Application,
and then starts it using KToolInvocation.startService...
</p>
<p>
However applications (like kontact) can reimplement this method, to provide
an in-process way of loading the implementation for this service type.
</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>serviceType</em> </td><td> the type of service we're looking for
<tr><td></td><td valign="top"><em>constraint</em> </td><td> see KServiceTypeTrader
<tr><td></td><td valign="top"><em>error</em> </td><td> On failure, <b>error</b> contains a description of the error
that occurred. If the pointer is 0, the argument will be
ignored
<tr><td></td><td valign="top"><em>dbusService</em> </td><td> On success, <b>dbusService</b> contains the DBus service name
under which this service is available. If the pointer is 0 the argument
will be ignored
<tr><td></td><td valign="top"><em>flags</em> </td><td> for future extensions (currently unused)
</td></tr>
</table></dl>
<p> <dl class="return" compact><dt><b>Returns:</b></dt><dd> an error code indicating success (== 0) or failure (> 0).
</dd></dl>
</p></div></div><hr><h2>Static Method Documentation</h2><a class="anchor" name="self"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../kio/KDBusServiceStarter.html">KDBusServiceStarter</a> self</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname">)</td>
<td width="100%"> </td>
</tr>
</table>
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