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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<div class="navpath"><a class="el" href="namespace_context_provider.html">ContextProvider</a>::<a class="el" href="class_context_provider_1_1_service_backend.html">ServiceBackend</a>
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<h1>ContextProvider::ServiceBackend Class Reference</h1><!-- doxytag: class="ContextProvider::ServiceBackend" -->A <a class="el" href="class_context_provider_1_1_service_backend.html" title="A ServiceBackend is the real worker behind Service.">ServiceBackend</a> is the real worker behind <a class="el" href="class_context_provider_1_1_service.html" title="A Service object is a proxy representing a service on D-Bus that implements the ContextKit...">Service</a>.
<a href="#_details">More...</a>
<p>
<code>#include <<a class="el" href="servicebackend_8h-source.html">servicebackend.h</a>></code>
<p>
<p>
<a href="class_context_provider_1_1_service_backend-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_context_provider_1_1_service_backend.html#2f72a8d1752eb4f930410deed93bd14e">ServiceBackend</a> (QDBusConnection connection)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Creates new <a class="el" href="class_context_provider_1_1_service_backend.html" title="A ServiceBackend is the real worker behind Service.">ServiceBackend</a> with the given QDBusConnection. <a href="#2f72a8d1752eb4f930410deed93bd14e"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_context_provider_1_1_service_backend.html#645ad8454046cc430aa1f6b6935e3e39">ServiceBackend</a> (QDBusConnection connection, const QString &busName)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Creates new <a class="el" href="class_context_provider_1_1_service_backend.html" title="A ServiceBackend is the real worker behind Service.">ServiceBackend</a> with the given QDBusConnection and a service name to register. <a href="#645ad8454046cc430aa1f6b6935e3e39"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="class_context_provider_1_1_service_backend.html#7c22a78525e271a443d0b328c09a8ebb">~ServiceBackend</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Destroys the <a class="el" href="class_context_provider_1_1_service_backend.html" title="A ServiceBackend is the real worker behind Service.">ServiceBackend</a>. <a href="#7c22a78525e271a443d0b328c09a8ebb"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_context_provider_1_1_service_backend.html#7b9d7a6b42fde2e7841edd7dbd5589af">sharedConnection</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns true iff the <a class="el" href="class_context_provider_1_1_service_backend.html" title="A ServiceBackend is the real worker behind Service.">ServiceBackend</a> shares its QDBusConnection with the provider program. <a href="#7b9d7a6b42fde2e7841edd7dbd5589af"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_context_provider_1_1_service_backend.html#f0ffcd20b78a6c070b46f2a808974bf5">start</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Start the <a class="el" href="class_context_provider_1_1_service.html" title="A Service object is a proxy representing a service on D-Bus that implements the ContextKit...">Service</a> again after it has been stopped. <a href="#f0ffcd20b78a6c070b46f2a808974bf5"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_context_provider_1_1_service_backend.html#f580af0059e69905ee6aefa55056bdd5">stop</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Stop the service. <a href="#f580af0059e69905ee6aefa55056bdd5"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_context_provider_1_1_service_backend.html#1f25b50b4abc8e8a5fbdf0b9b38f6691">setAsDefault</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the <a class="el" href="class_context_provider_1_1_service_backend.html" title="A ServiceBackend is the real worker behind Service.">ServiceBackend</a> object as the default one to use when constructing <a class="el" href="class_context_provider_1_1_property.html" title="A Property object represents a context property, i.e., a key-value pair.">Property</a> objects. <a href="#1f25b50b4abc8e8a5fbdf0b9b38f6691"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_context_provider_1_1_service_backend.html#3380d860b28632814283af9cb48115ad">setValue</a> (const QString &key, const QVariant &val)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set the value of <em>key</em> to <em>val</em>. <a href="#3380d860b28632814283af9cb48115ad"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="class_context_provider_1_1_manager.html">Manager</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_context_provider_1_1_service_backend.html#c2341db978f732d4a68027568db73fd0">manager</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the <a class="el" href="class_context_provider_1_1_manager.html" title="Manager implements the org.freedesktop.ContextKit.Manager DBus interface. (With the...">Manager</a> associated with this backend. <a href="#c2341db978f732d4a68027568db73fd0"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_context_provider_1_1_service_backend.html#2b33587710d46129c3554fc405e93858">ref</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Increase the reference count by one. <a class="el" href="class_context_provider_1_1_service.html" title="A Service object is a proxy representing a service on D-Bus that implements the ContextKit...">Service</a> calls this. <a href="#2b33587710d46129c3554fc405e93858"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_context_provider_1_1_service_backend.html#44c270d04037efde600e3f2ba7e4188f">unref</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Decrease the reference count by one. <a href="#44c270d04037efde600e3f2ba7e4188f"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Static Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static <a class="el" href="class_context_provider_1_1_service_backend.html">ServiceBackend</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_context_provider_1_1_service_backend.html#03beadb30b9d1f837d372ccc77004595">instance</a> (QDBusConnection connection)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns a <a class="el" href="class_context_provider_1_1_service_backend.html" title="A ServiceBackend is the real worker behind Service.">ServiceBackend</a> instance for a given <em>connection</em>. <a href="#03beadb30b9d1f837d372ccc77004595"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static <a class="el" href="class_context_provider_1_1_service_backend.html">ServiceBackend</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_context_provider_1_1_service_backend.html#d584702ae8e0b3c633d4c8fe857cd766">instance</a> (QDBusConnection::BusType busType, const QString &busName)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns a <a class="el" href="class_context_provider_1_1_service_backend.html" title="A ServiceBackend is the real worker behind Service.">ServiceBackend</a> instance for a given <em>busType</em> and <em>busName</em>. <a href="#d584702ae8e0b3c633d4c8fe857cd766"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Static Public Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static <a class="el" href="class_context_provider_1_1_service_backend.html">ServiceBackend</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_context_provider_1_1_service_backend.html#dba83a5a2a30247be68cd8485b3c6306">defaultServiceBackend</a></td></tr>
<tr><td colspan="2"><br><h2>Friends</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="class_context_provider_1_1_service_backend.html#ed41fb3009b4b10268a07c9e2fb37ece">::ServiceBackendUnitTest</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="class_context_provider_1_1_service_backend.html#6474ceb8669761e879329b39c3afb899">Service</a></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
A <a class="el" href="class_context_provider_1_1_service_backend.html" title="A ServiceBackend is the real worker behind Service.">ServiceBackend</a> is the real worker behind <a class="el" href="class_context_provider_1_1_service.html" title="A Service object is a proxy representing a service on D-Bus that implements the ContextKit...">Service</a>.
<p>
Multiple <a class="el" href="class_context_provider_1_1_service.html" title="A Service object is a proxy representing a service on D-Bus that implements the ContextKit...">Service</a> instances can share same <a class="el" href="class_context_provider_1_1_service_backend.html" title="A ServiceBackend is the real worker behind Service.">ServiceBackend</a>. The backend is the actual worker that operates on D-Bus, has a <a class="el" href="class_context_provider_1_1_manager.html" title="Manager implements the org.freedesktop.ContextKit.Manager DBus interface. (With the...">Manager</a> and registers properties.<p>
The <a class="el" href="class_context_provider_1_1_service.html" title="A Service object is a proxy representing a service on D-Bus that implements the ContextKit...">Service</a> class actually proxies all methods to the <a class="el" href="class_context_provider_1_1_service_backend.html" title="A ServiceBackend is the real worker behind Service.">ServiceBackend</a>. <hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="2f72a8d1752eb4f930410deed93bd14e"></a><!-- doxytag: member="ContextProvider::ServiceBackend::ServiceBackend" ref="2f72a8d1752eb4f930410deed93bd14e" args="(QDBusConnection connection)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">ContextProvider::ServiceBackend::ServiceBackend </td>
<td>(</td>
<td class="paramtype">QDBusConnection </td>
<td class="paramname"> <em>connection</em> </td>
<td> ) </td>
<td><code> [explicit]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Creates new <a class="el" href="class_context_provider_1_1_service_backend.html" title="A ServiceBackend is the real worker behind Service.">ServiceBackend</a> with the given QDBusConnection.
<p>
The backend automatically creates it's <a class="el" href="class_context_provider_1_1_manager.html" title="Manager implements the org.freedesktop.ContextKit.Manager DBus interface. (With the...">Manager</a>. The connection will be shared between <a class="el" href="class_context_provider_1_1_service.html" title="A Service object is a proxy representing a service on D-Bus that implements the ContextKit...">Service</a> and the provider program, and the <a class="el" href="class_context_provider_1_1_service_backend.html" title="A ServiceBackend is the real worker behind Service.">ServiceBackend</a> will not register any service names.
</div>
</div><p>
<a class="anchor" name="645ad8454046cc430aa1f6b6935e3e39"></a><!-- doxytag: member="ContextProvider::ServiceBackend::ServiceBackend" ref="645ad8454046cc430aa1f6b6935e3e39" args="(QDBusConnection connection, const QString &busName)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">ContextProvider::ServiceBackend::ServiceBackend </td>
<td>(</td>
<td class="paramtype">QDBusConnection </td>
<td class="paramname"> <em>connection</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const QString & </td>
<td class="paramname"> <em>busName</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Creates new <a class="el" href="class_context_provider_1_1_service_backend.html" title="A ServiceBackend is the real worker behind Service.">ServiceBackend</a> with the given QDBusConnection and a service name to register.
<p>
The backend automatically creates it's <a class="el" href="class_context_provider_1_1_manager.html" title="Manager implements the org.freedesktop.ContextKit.Manager DBus interface. (With the...">Manager</a>. The connection will not be shared between the <a class="el" href="class_context_provider_1_1_service.html" title="A Service object is a proxy representing a service on D-Bus that implements the ContextKit...">Service</a> and the provider program.
</div>
</div><p>
<a class="anchor" name="7c22a78525e271a443d0b328c09a8ebb"></a><!-- doxytag: member="ContextProvider::ServiceBackend::~ServiceBackend" ref="7c22a78525e271a443d0b328c09a8ebb" args="()" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">ContextProvider::ServiceBackend::~ServiceBackend </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Destroys the <a class="el" href="class_context_provider_1_1_service_backend.html" title="A ServiceBackend is the real worker behind Service.">ServiceBackend</a>.
<p>
The backend is stopped. If this backend is the defaultServiceBackend, the defaultServiceBackend is set back to NULL.
</div>
</div><p>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="d584702ae8e0b3c633d4c8fe857cd766"></a><!-- doxytag: member="ContextProvider::ServiceBackend::instance" ref="d584702ae8e0b3c633d4c8fe857cd766" args="(QDBusConnection::BusType busType, const QString &busName)" -->
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<div class="memproto">
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<td class="memname"><a class="el" href="class_context_provider_1_1_service_backend.html">ServiceBackend</a> * ContextProvider::ServiceBackend::instance </td>
<td>(</td>
<td class="paramtype">QDBusConnection::BusType </td>
<td class="paramname"> <em>busType</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const QString & </td>
<td class="paramname"> <em>busName</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td><code> [static]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Returns a <a class="el" href="class_context_provider_1_1_service_backend.html" title="A ServiceBackend is the real worker behind Service.">ServiceBackend</a> instance for a given <em>busType</em> and <em>busName</em>.
<p>
Creates the instance if it does not exist yet.
</div>
</div><p>
<a class="anchor" name="03beadb30b9d1f837d372ccc77004595"></a><!-- doxytag: member="ContextProvider::ServiceBackend::instance" ref="03beadb30b9d1f837d372ccc77004595" args="(QDBusConnection connection)" -->
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<td class="memname"><a class="el" href="class_context_provider_1_1_service_backend.html">ServiceBackend</a> * ContextProvider::ServiceBackend::instance </td>
<td>(</td>
<td class="paramtype">QDBusConnection </td>
<td class="paramname"> <em>connection</em> </td>
<td> ) </td>
<td><code> [static]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Returns a <a class="el" href="class_context_provider_1_1_service_backend.html" title="A ServiceBackend is the real worker behind Service.">ServiceBackend</a> instance for a given <em>connection</em>.
<p>
Creates the instance if it does not exist yet.
</div>
</div><p>
<a class="anchor" name="c2341db978f732d4a68027568db73fd0"></a><!-- doxytag: member="ContextProvider::ServiceBackend::manager" ref="c2341db978f732d4a68027568db73fd0" args="()" -->
<div class="memitem">
<div class="memproto">
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<td class="memname"><a class="el" href="class_context_provider_1_1_manager.html">Manager</a> * ContextProvider::ServiceBackend::manager </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Returns the <a class="el" href="class_context_provider_1_1_manager.html" title="Manager implements the org.freedesktop.ContextKit.Manager DBus interface. (With the...">Manager</a> associated with this backend.
<p>
</div>
</div><p>
<a class="anchor" name="2b33587710d46129c3554fc405e93858"></a><!-- doxytag: member="ContextProvider::ServiceBackend::ref" ref="2b33587710d46129c3554fc405e93858" args="()" -->
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<td class="memname">void ContextProvider::ServiceBackend::ref </td>
<td>(</td>
<td class="paramname"> </td>
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Increase the reference count by one. <a class="el" href="class_context_provider_1_1_service.html" title="A Service object is a proxy representing a service on D-Bus that implements the ContextKit...">Service</a> calls this.
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<a class="anchor" name="1f25b50b4abc8e8a5fbdf0b9b38f6691"></a><!-- doxytag: member="ContextProvider::ServiceBackend::setAsDefault" ref="1f25b50b4abc8e8a5fbdf0b9b38f6691" args="()" -->
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Sets the <a class="el" href="class_context_provider_1_1_service_backend.html" title="A ServiceBackend is the real worker behind Service.">ServiceBackend</a> object as the default one to use when constructing <a class="el" href="class_context_provider_1_1_property.html" title="A Property object represents a context property, i.e., a key-value pair.">Property</a> objects.
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<a class="anchor" name="3380d860b28632814283af9cb48115ad"></a><!-- doxytag: member="ContextProvider::ServiceBackend::setValue" ref="3380d860b28632814283af9cb48115ad" args="(const QString &key, const QVariant &val)" -->
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Set the value of <em>key</em> to <em>val</em>.
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A property named <em>key</em> must have been registered already, by creating a <a class="el" href="class_context_provider_1_1_property.html" title="A Property object represents a context property, i.e., a key-value pair.">Property</a> object for it.
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<a class="anchor" name="7b9d7a6b42fde2e7841edd7dbd5589af"></a><!-- doxytag: member="ContextProvider::ServiceBackend::sharedConnection" ref="7b9d7a6b42fde2e7841edd7dbd5589af" args="()" -->
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Returns true iff the <a class="el" href="class_context_provider_1_1_service_backend.html" title="A ServiceBackend is the real worker behind Service.">ServiceBackend</a> shares its QDBusConnection with the provider program.
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<a class="anchor" name="f0ffcd20b78a6c070b46f2a808974bf5"></a><!-- doxytag: member="ContextProvider::ServiceBackend::start" ref="f0ffcd20b78a6c070b46f2a808974bf5" args="()" -->
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Start the <a class="el" href="class_context_provider_1_1_service.html" title="A Service object is a proxy representing a service on D-Bus that implements the ContextKit...">Service</a> again after it has been stopped.
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In the case of shared connection, the objects will be registered to D-Bus. In the case of non-shared connection, also the service name will be registered on D-Bus. Returns true on success, false otherwise.
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<a class="anchor" name="f580af0059e69905ee6aefa55056bdd5"></a><!-- doxytag: member="ContextProvider::ServiceBackend::stop" ref="f580af0059e69905ee6aefa55056bdd5" args="()" -->
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Stop the service.
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In the case of shared connection, this will cause the related objects to be unregistered, but the bus name will still be on D-Bus. In the case of non-shared connection, this will cause the service to disappear from D-Bus completely.
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<a class="anchor" name="44c270d04037efde600e3f2ba7e4188f"></a><!-- doxytag: member="ContextProvider::ServiceBackend::unref" ref="44c270d04037efde600e3f2ba7e4188f" args="()" -->
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Decrease the reference count by one.
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<a class="el" href="class_context_provider_1_1_service.html" title="A Service object is a proxy representing a service on D-Bus that implements the ContextKit...">Service</a> calls this. If the reference count goes to zero, stop the <a class="el" href="class_context_provider_1_1_service_backend.html" title="A ServiceBackend is the real worker behind Service.">ServiceBackend</a> instance, remove it from the instance store and schedule it to be deleted.
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<hr><h2>Friends And Related Function Documentation</h2>
<a class="anchor" name="ed41fb3009b4b10268a07c9e2fb37ece"></a><!-- doxytag: member="ContextProvider::ServiceBackend::::ServiceBackendUnitTest" ref="ed41fb3009b4b10268a07c9e2fb37ece" args="" -->
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<td class="memname">friend class ::ServiceBackendUnitTest<code> [friend]</code> </td>
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<a class="anchor" name="6474ceb8669761e879329b39c3afb899"></a><!-- doxytag: member="ContextProvider::ServiceBackend::Service" ref="6474ceb8669761e879329b39c3afb899" args="" -->
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<td class="memname">friend class <a class="el" href="class_context_provider_1_1_service.html">Service</a><code> [friend]</code> </td>
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<hr><h2>Member Data Documentation</h2>
<a class="anchor" name="dba83a5a2a30247be68cd8485b3c6306"></a><!-- doxytag: member="ContextProvider::ServiceBackend::defaultServiceBackend" ref="dba83a5a2a30247be68cd8485b3c6306" args="" -->
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<td class="memname"><a class="el" href="class_context_provider_1_1_service_backend.html">ServiceBackend</a> * <a class="el" href="class_context_provider_1_1_service_backend.html#dba83a5a2a30247be68cd8485b3c6306">ContextProvider::ServiceBackend::defaultServiceBackend</a><code> [static]</code> </td>
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<hr>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="servicebackend_8h-source.html">servicebackend.h</a><li><a class="el" href="servicebackend_8cpp.html">servicebackend.cpp</a></ul>
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<hr size="1"><address style="text-align: right;"><small>Generated on Wed Sep 30 10:23:55 2009 for libcontextprovider by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.8 </small></address>
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