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<title>Qt Mobility 1.2: QML ValueSpaceSubscriber Element</title>
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<a href="index.html" class="qtref"><span>QtMobility Reference Documentation</span></a>
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<li><a href="http://qt.nokia.com/doc/4.7/qdeclarativeelements.html">QML Elements</a></li>
<li>QML ValueSpaceSubscriber Element</li>
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<h3><a name="toc">Contents</a></h3>
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<li class="level1"><a href="#properties">Properties</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QML ValueSpaceSubscriber Element</h1>
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<p>The <a href="qvaluespacesubscriber.html">QValueSpaceSubscriber</a> class allows applications to read and subscribe to Value Space paths. <a href="#details">More...</a></p>
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<p>This element was introduced in Mobility 1.2.</p>
<ul>
<li><a href="qml-valuespacesubscriber-members.html">List of all members, including inherited members</a></li>
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<h2>Properties</h2>
<ul>
<li class="fn"><b><b><a href="qml-valuespacesubscriber.html#connected-prop">connected</a></b></b> : bool</li>
<li class="fn"><b><b><a href="qml-valuespacesubscriber.html#path-prop">path</a></b></b> : string</li>
<li class="fn"><b><b><a href="qml-valuespacesubscriber.html#subPaths-prop">subPaths</a></b></b> : QStringList</li>
<li class="fn"><b><b><a href="qml-valuespacesubscriber.html#value-prop">value</a></b></b> : QVariant</li>
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<h2>Detailed Description</h2>
<p>The ValueSpaceSubscriber element is part of the <b>QtMobility.publishsubscribe 1.1</b> module.</p>
<p>Each ValueSpaceSubscriber element represents a single value or path in the Value Space. The path is set using the <i>path</i> property.</p>
<p>Note that unlike the C++ class <a href="qvaluespacesubscriber.html">QValueSpaceSubscriber</a>, the QML element has no default path. A path must be set before the subscriber will connect to the Value Space and begin receiving notifications.</p>
<pre class="cpp"> ValueSpaceSubscriber {
id: nowPlaying
path: <span class="string">"/applications/mediaplayer/now-playing"</span>
}</pre>
<p>The value is accessed using the <i>value</i> property.</p>
<pre class="cpp"> Text {
text: nowPlaying<span class="operator">.</span>value
}</pre>
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<h2>Property Documentation</h2>
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<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="connected-prop"></a><span class="qmlreadonly">read-only</span><span class="name">connected</span> : <span class="type"><a href="http://qt.nokia.com/doc/4.7/qml-bool.html">bool</a></span></p></td></tr></table></div><div class="qmldoc"><p>This property holds whether the subscriber is currently connected to the backing store of the Value Space.</p>
<p>This property group was introduced in Mobility 1.2.</p>
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<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="path-prop"></a><span class="name">path</span> : <span class="type"><a href="http://qt.nokia.com/doc/4.7/qml-string.html">string</a></span></p></td></tr></table></div><div class="qmldoc"><p>This property holds the base path of the subscriber, and is read/write.</p>
<p>This property group was introduced in Mobility 1.2.</p>
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<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="subPaths-prop"></a><span class="qmlreadonly">read-only</span><span class="name">subPaths</span> : <span class="type"><a href="http://qt.nokia.com/doc/4.7/qstringlist.html">QStringList</a></span></p></td></tr></table></div><div class="qmldoc"><p>This property holds a list of known sub-paths of the currently set path.</p>
<p>This property group was introduced in Mobility 1.2.</p>
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<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="value-prop"></a><span class="qmlreadonly">read-only</span><span class="name">value</span> : <span class="type"><a href="http://qt.nokia.com/doc/4.7/qvariant.html">QVariant</a></span></p></td></tr></table></div><div class="qmldoc"><p>This property holds the value of the key at the set path in the Value Space. Read-only.</p>
<p>This property group was introduced in Mobility 1.2.</p>
</div></div><!-- @@@value -->
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