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<a name="GDataFreebaseQuery"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle"><a name="GDataFreebaseQuery.top_of_page"></a>GDataFreebaseQuery</span></h2>
<p>GDataFreebaseQuery — GData Freebase query object</p>
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<div class="refsect1">
<a name="GDataFreebaseQuery.stability-level"></a><h2>Stability Level</h2>
<acronym title="Unstable interfaces are experimental or transitional. They are typically used to
give outside developers early access to new or rapidly changing technology, or
to provide an interim solution to a problem where a more general solution is
anticipated. No claims are made about either source or binary compatibility from
one minor release to the next.
The Unstable interface level is a warning that these interfaces are subject to
change without warning and should not be used in unbundled products.
Given such caveats, customer impact need not be a factor when considering
incompatible changes to an Unstable interface in a major or minor release.
Nonetheless, when such changes are introduced, the changes should still be
mentioned in the release notes for the affected release.
"><span class="acronym">Unstable</span></acronym>, unless otherwise indicated
</div>
<div class="refsect1">
<a name="GDataFreebaseQuery.functions"></a><h2>Functions</h2>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<a class="link" href="GDataFreebaseQuery.html" title="GDataFreebaseQuery"><span class="returnvalue">GDataFreebaseQuery</span></a> *
</td>
<td class="function_name">
<a class="link" href="GDataFreebaseQuery.html#gdata-freebase-query-new" title="gdata_freebase_query_new ()">gdata_freebase_query_new</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GDataFreebaseQuery.html" title="GDataFreebaseQuery"><span class="returnvalue">GDataFreebaseQuery</span></a> *
</td>
<td class="function_name">
<a class="link" href="GDataFreebaseQuery.html#gdata-freebase-query-new-from-variant" title="gdata_freebase_query_new_from_variant ()">gdata_freebase_query_new_from_variant</a> <span class="c_punctuation">()</span>
</td>
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</tbody>
</table></div>
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<div class="refsect1">
<a name="GDataFreebaseQuery.properties"></a><h2>Properties</h2>
<div class="informaltable"><table border="0">
<colgroup>
<col width="150px" class="properties_type">
<col width="300px" class="properties_name">
<col width="200px" class="properties_flags">
</colgroup>
<tbody><tr>
<td class="property_type">
<a href="https://developer.gnome.org/glib/unstable/glib-GVariant.html#GVariant"><span class="type">GVariant</span></a> *</td>
<td class="property_name"><a class="link" href="GDataFreebaseQuery.html#GDataFreebaseQuery--variant" title="The “variant” property">variant</a></td>
<td class="property_flags">Read / Write / Construct Only</td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GDataFreebaseQuery.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody>
<tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="GDataFreebaseQuery.html#GDataFreebaseQuery-struct" title="GDataFreebaseQuery">GDataFreebaseQuery</a></td>
</tr>
<tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="GDataFreebaseQuery.html#GDataFreebaseQueryClass" title="GDataFreebaseQueryClass">GDataFreebaseQueryClass</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GDataFreebaseQuery.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen"> <a href="https://developer.gnome.org/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a>
<span class="lineart">╰──</span> <a class="link" href="GDataQuery.html" title="GDataQuery">GDataQuery</a>
<span class="lineart">╰──</span> GDataFreebaseQuery
</pre>
</div>
<div class="refsect1">
<a name="GDataFreebaseQuery.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include <gdata/services/freebase/gdata-freebase-query.h>
</pre>
</div>
<div class="refsect1">
<a name="GDataFreebaseQuery.description"></a><h2>Description</h2>
<p><a class="link" href="GDataFreebaseQuery.html" title="GDataFreebaseQuery"><span class="type">GDataFreebaseQuery</span></a> represents a MQL query specific to the Google Freebase service.</p>
<p>This implementation of <a class="link" href="GDataQuery.html" title="GDataQuery"><span class="type">GDataQuery</span></a> respects the <a class="link" href="GDataQuery.html#gdata-query-set-max-results" title="gdata_query_set_max_results ()"><code class="function">gdata_query_set_max_results()</code></a> call.</p>
<p>For more details of Google Freebase API, see the <a class="ulink" href="https://developers.google.com/freebase/v1/" target="_top">
online documentation</a>.</p>
</div>
<div class="refsect1">
<a name="GDataFreebaseQuery.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="gdata-freebase-query-new"></a><h3>gdata_freebase_query_new ()</h3>
<pre class="programlisting"><a class="link" href="GDataFreebaseQuery.html" title="GDataFreebaseQuery"><span class="returnvalue">GDataFreebaseQuery</span></a> *
gdata_freebase_query_new (<em class="parameter"><code>const <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *mql</code></em>);</pre>
<p>Creates a new <a class="link" href="GDataFreebaseQuery.html" title="GDataFreebaseQuery"><span class="type">GDataFreebaseQuery</span></a> with the MQL query provided in <em class="parameter"><code>mql</code></em>
. MQL
is a JSON-based query language, analogous to SPARQL. To learn more about MQL,
see the <a class="ulink" href="https://developers.google.com/freebase/v1/mql-overview" target="_top">
MQL overview</a> and <a class="ulink" href="https://developers.google.com/freebase/v1/mql-cookbook" target="_top">
cookbook</a>.</p>
<p>For detailed information on Freebase schemas, The <a class="ulink" href="http://www.freebase.com/schema" target="_top">"Schema"
section</a> on the main site allows for natural search and navigation through the multiple data properties and domains.</p>
<div class="refsect3">
<a name="id-1.5.8.3.10.2.6"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>mql</p></td>
<td class="parameter_description"><p>a MQL query string</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.5.8.3.10.2.7"></a><h4>Returns</h4>
<p> a new <a class="link" href="GDataFreebaseQuery.html" title="GDataFreebaseQuery"><span class="type">GDataFreebaseQuery</span></a>. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
<p class="since">Since 0.15.1</p>
</div>
<hr>
<div class="refsect2">
<a name="gdata-freebase-query-new-from-variant"></a><h3>gdata_freebase_query_new_from_variant ()</h3>
<pre class="programlisting"><a class="link" href="GDataFreebaseQuery.html" title="GDataFreebaseQuery"><span class="returnvalue">GDataFreebaseQuery</span></a> *
gdata_freebase_query_new_from_variant (<em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-GVariant.html#GVariant"><span class="type">GVariant</span></a> *variant</code></em>);</pre>
<p>Creates a new <a class="link" href="GDataFreebaseQuery.html" title="GDataFreebaseQuery"><span class="type">GDataFreebaseQuery</span></a> with the MQL query provided in a serialized form as <em class="parameter"><code>variant</code></em>
of type "a{smv}" containing the JSON data tree of a MQL query. One convenient way
to build the variant is using <code class="function">json_gvariant_serialize()</code> from a <span class="type">JsonNode</span>. For more information
about MQL, see <a class="link" href="GDataFreebaseQuery.html#gdata-freebase-query-new" title="gdata_freebase_query_new ()"><code class="function">gdata_freebase_query_new()</code></a>.</p>
<p><a class="link" href="GDataFreebaseQuery.html" title="GDataFreebaseQuery"><span class="type">GDataFreebaseQuery</span></a> takes ownership on <em class="parameter"><code>variant</code></em>
, if it has a floating reference, it will be sunk.
Otherwise an extra reference will be added.</p>
<div class="refsect3">
<a name="id-1.5.8.3.10.3.6"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>variant</p></td>
<td class="parameter_description"><p>a variant containing the MQL query structure</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.5.8.3.10.3.7"></a><h4>Returns</h4>
<p> a new <a class="link" href="GDataFreebaseQuery.html" title="GDataFreebaseQuery"><span class="type">GDataFreebaseQuery</span></a>. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
<p class="since">Since 0.15.1</p>
</div>
</div>
<div class="refsect1">
<a name="GDataFreebaseQuery.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GDataFreebaseQuery-struct"></a><h3>GDataFreebaseQuery</h3>
<pre class="programlisting">typedef struct _GDataFreebaseQuery GDataFreebaseQuery;</pre>
<p>All the fields in the <a class="link" href="GDataFreebaseQuery.html" title="GDataFreebaseQuery"><span class="type">GDataFreebaseQuery</span></a> structure are private and should never be accessed directly.</p>
<p class="since">Since 0.15.1</p>
</div>
<hr>
<div class="refsect2">
<a name="GDataFreebaseQueryClass"></a><h3>GDataFreebaseQueryClass</h3>
<pre class="programlisting">typedef struct {
} GDataFreebaseQueryClass;
</pre>
<p>All the fields in the <a class="link" href="GDataFreebaseQuery.html#GDataFreebaseQueryClass" title="GDataFreebaseQueryClass"><span class="type">GDataFreebaseQueryClass</span></a> structure are private and should never be accessed directly.</p>
<p class="since">Since 0.15.1</p>
</div>
</div>
<div class="refsect1">
<a name="GDataFreebaseQuery.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GDataFreebaseQuery--variant"></a><h3>The <code class="literal">“variant”</code> property</h3>
<pre class="programlisting"> “variant” <a href="https://developer.gnome.org/glib/unstable/glib-GVariant.html#GVariant"><span class="type">GVariant</span></a> *</pre>
<p>Variant containing the MQL query. The variant is a very generic container of type "a{smv}",
containing (possibly nested) Freebase schema types and values.</p>
<p>Flags: Read / Write / Construct Only</p>
<p>Allowed values: GVariant<a{smv}></p>
<p>Default value: NULL</p>
<p class="since">Since 0.15.1</p>
</div>
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