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KDE 4.4 PyKDE API Reference
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<h1>ChangeRecorder Class Reference</h1>
<code>from PyKDE4.akonadi import *</code>
<p>
Inherits: Akonadi.Monitor → <a href="http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/qobject.html">QObject</a><br />
Namespace: Akonadi.ChangeRecorder<br />
<h2>Detailed Description</h2>
<p>Records and replays change notification.
</p>
<p>
This class is responsible for recording change notification while
an agent is not online and replaying the notifications when the agent
is online again. Therefore the agent doesn't have to care about
online/offline mode in its synchronization algorithm.
</p>
<p>
<dl class="author" compact><dt><b>Author:</b></dt><dd> Volker Krause <vkrause@kde.org> </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"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#changesAdded">changesAdded</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#nothingToReplay">nothingToReplay</a> ()</td></tr>
<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="#ChangeRecorder">__init__</a> (self, <a href="http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/qobject.html">QObject</a> parent=0)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#changeProcessed">changeProcessed</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#changesAdded">changesAdded</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </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"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#nothingToReplay">nothingToReplay</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#replayNext">replayNext</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#setChangeRecordingEnabled">setChangeRecordingEnabled</a> (self, bool enable)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#setConfig">setConfig</a> (self, <a href="http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/qsettings.html">QSettings</a> settings)</td></tr>
</table>
<hr><h2>Method Documentation</h2><a class="anchor" name="ChangeRecorder"></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"><a href="http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/qobject.html">QObject</a> </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"><p>Creates a new change recorder.
</p></div></div><a class="anchor" name="changeProcessed"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> changeProcessed</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Removes the previously emitted change from the records.
</p></div></div><a class="anchor" name="changesAdded"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> changesAdded</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Emitted when new changes are recorded.
</p><dl compact><dt><b>Signal syntax:</b></dt><dd><code>QObject.connect(source, SIGNAL("changesAdded()"), target_slot)</code></dd></dl></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"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Returns whether there are recorded changes.
</p></div></div><a class="anchor" name="nothingToReplay"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> nothingToReplay</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Emitted when replayNext() was called, but there was no valid change to replay.
This can happen when all pending changes have been filtered out, for example.
You only need to connect to this signal if you rely on one signal being emitted
as a result of calling replayNext().
</p><dl compact><dt><b>Signal syntax:</b></dt><dd><code>QObject.connect(source, SIGNAL("nothingToReplay()"), target_slot)</code></dd></dl></div></div><a class="anchor" name="replayNext"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> replayNext</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Replay the next change notification and erase the previous one from the record.
</p></div></div><a class="anchor" name="setChangeRecordingEnabled"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> setChangeRecordingEnabled</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">bool </td>
<td class="paramname"><em>enable</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Enables change recording. If change recording is disabled, this class
behaves exactly like Akonadi.Monitor.
Change recording is enabled by default.
</p></div></div><a class="anchor" name="setConfig"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> setConfig</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="http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/qsettings.html">QSettings</a> </td>
<td class="paramname"><em>settings</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Sets the QSettings object used for persistent recorded changes.
</p></div></div>
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