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<?xml version="1.0" encoding="UTF-8"?>
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<title>Akonadi.ItemSearchJob</title>
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KDE 4.9 PyKDE API Reference
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<h1>ItemSearchJob Class Reference</h1>
<code>from PyKDE4.akonadi import *</code>
<p>
Inherits: <a href="../akonadi/Akonadi.Job.html">Akonadi.Job</a> → <a href="../kdecore/KCompositeJob.html">KCompositeJob</a> → <a href="../kdecore/KJob.html">KJob</a> → QObject<br />
Namespace: <a href="../akonadi/Akonadi.html">Akonadi</a><br />
<h2>Detailed Description</h2>
<p>Job that searches for items in the Akonadi storage.
</p>
<p>
This job searches for items that match a given search query and returns
the list of matching item.
</p>
<p>
<b>Attention:</b> Since this is an ordinary SPARQL query, potentially the whole Nepomuk
store is searched, which can be very slow. Therefore, you should create
SPARQL queries that only search for items that Akonadi fed into Nepomuk.
This can be done by limiting the results to statements that contain the
predicate with the akonadiItemIdUri() URI. This limits the search result to
to Nepomuk resources that were added by the Akonadi Nepomuk feeders.
</p>
<p>
<pre class="fragment">
const QString query = "..."; // some sparql query
Akonadi.ItemSearchJob *job = new Akonadi.ItemSearchJob( query );
job->fetchScope().fetchFullPayload();
connect( job, SIGNAL( result( KJob* ) ), this, SLOT( searchResult( KJob* ) ) );
...
MyClass.searchResult( KJob *job )
{
Akonadi.ItemSearchJob *searchJob = qobject_cast<Akonadi.ItemSearchJob*>( job );
const Akonadi.Item.List items = searchJob->items();
foreach ( const Akonadi.Item &item, items ) {
// extract the payload and do further stuff
}
}
</pre>
</p>
<p>
<dl class="author" compact><dt><b>Author:</b></dt><dd> Tobias Koenig <tokoe@kde.org> </dd></dl>
<dl class="since" compact><dt><b>Since:</b></dt><dd> 4.4
</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="#itemsReceived">itemsReceived</a> ([<a href="../akonadi/Akonadi.Item.html">Akonadi.Item</a>] items)</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="#ItemSearchJob">__init__</a> (self, QString query, QObject parent=0)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#doHandleResponse">doHandleResponse</a> (self, QByteArray tag, QByteArray data)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#doStart">doStart</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../akonadi/Akonadi.ItemFetchScope.html">Akonadi.ItemFetchScope</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#fetchScope">fetchScope</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">[<a href="../akonadi/Akonadi.Item.html">Akonadi.Item</a>] </td><td class="memItemRight" valign="bottom"><a class="el" href="#items">items</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#setFetchScope">setFetchScope</a> (self, <a href="../akonadi/Akonadi.ItemFetchScope.html">Akonadi.ItemFetchScope</a> fetchScope)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#setQuery">setQuery</a> (self, QString query)</td></tr>
<tr><td colspan="2"><br><h2>Static Methods</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">QUrl </td><td class="memItemRight" valign="bottom"><a class="el" href="#akonadiItemIdUri">akonadiItemIdUri</a> ()</td></tr>
</table>
<hr><h2>Signal Documentation</h2><a class="anchor" name="itemsReceived"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> itemsReceived</td>
<td>(</td>
<td class="paramtype">[<a href="../akonadi/Akonadi.Item.html">Akonadi.Item</a>] </td>
<td class="paramname"><em>items</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>This signal is emitted whenever new matching items have been fetched completely.
</p>
<p>
<dl class="note" compact><dt><b>Note:</b></dt><dd> This is an optimization, instead of waiting for the end of the job
and calling items(), you can connect to this signal and get the items
incrementally.
</dd></dl> </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>items</em> </td><td> The matching items.
</td></tr>
</table></dl>
<p>
</p><dl compact><dt><b>Signal syntax:</b></dt><dd><code>QObject.connect(source, SIGNAL("itemsReceived(const Akonadi::Item::List&)"), target_slot)</code></dd></dl></div></div><hr><h2>Method Documentation</h2><a class="anchor" name="ItemSearchJob"></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">QString </td>
<td class="paramname"><em>query</em>, </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"><p>Creates an item search job.
</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> </td><td> The search query in SPARQL format.
<tr><td></td><td valign="top"><em>parent</em> </td><td> The parent object.
</td></tr>
</table></dl>
<p>
</p></div></div><a class="anchor" name="doHandleResponse"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> doHandleResponse</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">QByteArray </td>
<td class="paramname"><em>tag</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QByteArray </td>
<td class="paramname"><em>data</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="doStart"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> doStart</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="fetchScope"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../akonadi/Akonadi.ItemFetchScope.html">Akonadi.ItemFetchScope</a> fetchScope</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 the item fetch scope.
</p>
<p>
Since this returns a reference it can be used to conveniently modify the
current scope in-place, i.e. by calling a method on the returned reference
without storing it in a local variable. See the ItemFetchScope documentation
for an example.
</p>
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd> a reference to the current item fetch scope
</dd></dl> </p>
<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd> setFetchScope() for replacing the current item fetch scope
</dd></dl>
</p></div></div><a class="anchor" name="items"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">[<a href="../akonadi/Akonadi.Item.html">Akonadi.Item</a>] items</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 the items that matched the search query.
</p></div></div><a class="anchor" name="setFetchScope"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> setFetchScope</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="../akonadi/Akonadi.ItemFetchScope.html">Akonadi.ItemFetchScope</a> </td>
<td class="paramname"><em>fetchScope</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 item fetch scope.
</p>
<p>
The ItemFetchScope controls how much of an matching item's data is fetched
from the server, e.g. whether to fetch the full item payload or
only meta data.
</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>fetchScope</em> </td><td> The new scope for item fetch operations.
</td></tr>
</table></dl>
<p> <dl class="see" compact><dt><b>See also:</b></dt><dd> fetchScope()
</dd></dl>
</p></div></div><a class="anchor" name="setQuery"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> setQuery</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>query</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 search <b>query</b> in SPARQL format.
</p></div></div><hr><h2>Static Method Documentation</h2><a class="anchor" name="akonadiItemIdUri"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">QUrl akonadiItemIdUri</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname">)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Returns an URI that represents a predicate that is always added to the Nepomuk resource
by the Akonadi Nepomuk feeders.
</p>
<p>
The statement containing this predicate has the Akonadi Item ID of the resource as string
as the object, and the Nepomuk resource, e.g. a PersonContact, as the subject.
</p>
<p>
Always limit your searches to statements that contain this URI as predicate.
</p>
<p>
<dl class="since" compact><dt><b>Since:</b></dt><dd> 4.4.3
</dd></dl>
</p></div></div>
</div>
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