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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="The intention of a Stable interface is to enable arbitrary third parties to
develop applications to these interfaces, release them, and have confidence that
they will run on all minor releases of the product (after the one in which the
interface was introduced, and within the same major release). Even at a major
release, incompatible changes are expected to be rare, and to have strong
justifications.
"><span class="acronym">Stable</span></acronym>, unless otherwise indicated
</div>
<div class="refsect1">
<a name="GDataFreebaseQuery.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" 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>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GDataFreebaseQuery.properties"></a><h2>Properties</h2>
<div class="informaltable"><table class="informaltable" 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="../glib/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 class="informaltable" 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="../gobject/gobject-The-Base-Object-Type.html#GObject-struct">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 &lt;gdata/services/freebase/gdata-freebase-query.h&gt;
</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="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *mql</code></em>);</pre>
<div class="warning">
<p><code class="literal">gdata_freebase_query_new</code> has been deprecated since version 0.17.7 and should not be used in newly-written code.</p>
<p>Google Freebase has been permanently shut down.</p>
</div>
<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="gdata-freebase-query-new.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" 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="gdata-freebase-query-new.returns"></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: <a class="link" href="ix20.html#api-index-0.15.1">0.15.1</a></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="../glib/glib-GVariant.html#GVariant"><span class="type">GVariant</span></a> *variant</code></em>);</pre>
<div class="warning">
<p><code class="literal">gdata_freebase_query_new_from_variant</code> has been deprecated since version 0.17.7 and should not be used in newly-written code.</p>
<p>Google Freebase has been permanently shut down.</p>
</div>
<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="gdata-freebase-query-new-from-variant.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" 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="gdata-freebase-query-new-from-variant.returns"></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: <a class="link" href="ix20.html#api-index-0.15.1">0.15.1</a></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>
<div class="warning"><p><code class="literal">GDataFreebaseQuery</code> is deprecated and should not be used in newly-written code.</p></div>
<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: <a class="link" href="ix20.html#api-index-0.15.1">0.15.1</a></p>
</div>
<hr>
<div class="refsect2">
<a name="GDataFreebaseQueryClass"></a><h3>GDataFreebaseQueryClass</h3>
<pre class="programlisting">typedef struct {
} GDataFreebaseQueryClass;
</pre>
<div class="warning"><p><code class="literal">GDataFreebaseQueryClass</code> is deprecated and should not be used in newly-written code.</p></div>
<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: <a class="link" href="ix20.html#api-index-0.15.1">0.15.1</a></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="../glib/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>
<div class="warning">
<p><code class="literal">GDataFreebaseQuery:variant</code> has been deprecated since version 0.17.7 and should not be used in newly-written code.</p>
<p>Google Freebase has been permanently shut down.</p>
</div>
<p>Flags: Read / Write / Construct Only</p>
<p>Allowed values: GVariant&lt;a{smv}&gt;</p>
<p>Default value: NULL</p>
<p class="since">Since: <a class="link" href="ix20.html#api-index-0.15.1">0.15.1</a></p>
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