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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>ESourceBackend: Evolution-Data-Server Reference Manual</title>
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<td width="100%" align="left" class="shortcuts">
<a href="#" class="shortcut">Top</a><span id="nav_description">  <span class="dim">|</span> 
                  <a href="#eds-ESourceBackend.description" class="shortcut">Description</a></span>
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<div class="refentry">
<a name="eds-ESourceBackend"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="eds-ESourceBackend.top_of_page"></a>ESourceBackend</span></h2>
<p>ESourceBackend — Base class for backend-based data sources</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="eds-ESourceBackend.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">const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="eds-ESourceBackend.html#e-source-backend-get-backend-name" title="e_source_backend_get_backend_name ()">e_source_backend_get_backend_name</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="eds-ESourceBackend.html#e-source-backend-dup-backend-name" title="e_source_backend_dup_backend_name ()">e_source_backend_dup_backend_name</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="eds-ESourceBackend.html#e-source-backend-set-backend-name" title="e_source_backend_set_backend_name ()">e_source_backend_set_backend_name</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="eds-ESourceBackend.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">struct</td>
<td class="function_name"><a class="link" href="eds-ESourceBackend.html#ESourceBackend" title="struct ESourceBackend">ESourceBackend</a></td>
</tr>
<tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="eds-ESourceBackend.html#ESourceBackendClass" title="struct ESourceBackendClass">ESourceBackendClass</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="eds-ESourceBackend.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include &lt;libedataserver/libedataserver.h&gt;
</pre>
</div>
<div class="refsect1">
<a name="eds-ESourceBackend.description"></a><h2>Description</h2>
<p><a class="link" href="eds-ESourceBackend.html#ESourceBackend" title="struct ESourceBackend"><span class="type">ESourceBackend</span></a> is an abstract base class for data sources requiring
an associated backend to function.  The extension merely records the
name of the backend the data source should be paired with.</p>
</div>
<div class="refsect1">
<a name="eds-ESourceBackend.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="e-source-backend-get-backend-name"></a><h3>e_source_backend_get_backend_name ()</h3>
<pre class="programlisting">const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
e_source_backend_get_backend_name (<em class="parameter"><code><a class="link" href="eds-ESourceBackend.html#ESourceBackend" title="struct ESourceBackend"><span class="type">ESourceBackend</span></a> *extension</code></em>);</pre>
<p>Returns the backend name for <em class="parameter"><code>extension</code></em>
.</p>
<div class="refsect3">
<a name="id-1.2.3.3.7.2.5"></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>extension</p></td>
<td class="parameter_description"><p>an <a class="link" href="eds-ESourceBackend.html#ESourceBackend" title="struct ESourceBackend"><span class="type">ESourceBackend</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.3.3.7.2.6"></a><h4>Returns</h4>
<p> the backend name for <em class="parameter"><code>extension</code></em>
</p>
</div>
<p class="since">Since: <a class="link" href="api-index-3.6.html" title="Index of new symbols in 3.6">3.6</a></p>
</div>
<hr>
<div class="refsect2">
<a name="e-source-backend-dup-backend-name"></a><h3>e_source_backend_dup_backend_name ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
e_source_backend_dup_backend_name (<em class="parameter"><code><a class="link" href="eds-ESourceBackend.html#ESourceBackend" title="struct ESourceBackend"><span class="type">ESourceBackend</span></a> *extension</code></em>);</pre>
<p>Thread-safe variation of <a class="link" href="eds-ESourceBackend.html#e-source-backend-get-backend-name" title="e_source_backend_get_backend_name ()"><code class="function">e_source_backend_get_backend_name()</code></a>.
Use this function when accessing <em class="parameter"><code>extension</code></em>
 from multiple threads.</p>
<p>The returned string should be freed with <a href="/usr/share/gtk-doc/html/glib/glib-Memory-Allocation.html#g-free"><code class="function">g_free()</code></a> when no longer needed.</p>
<div class="refsect3">
<a name="id-1.2.3.3.7.3.6"></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>extension</p></td>
<td class="parameter_description"><p>an <a class="link" href="eds-ESourceBackend.html#ESourceBackend" title="struct ESourceBackend"><span class="type">ESourceBackend</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.3.3.7.3.7"></a><h4>Returns</h4>
<p> a newly-allocated copy of <span class="type">“backend-name”</span></p>
</div>
<p class="since">Since: <a class="link" href="api-index-3.6.html" title="Index of new symbols in 3.6">3.6</a></p>
</div>
<hr>
<div class="refsect2">
<a name="e-source-backend-set-backend-name"></a><h3>e_source_backend_set_backend_name ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
e_source_backend_set_backend_name (<em class="parameter"><code><a class="link" href="eds-ESourceBackend.html#ESourceBackend" title="struct ESourceBackend"><span class="type">ESourceBackend</span></a> *extension</code></em>,
                                   <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *backend_name</code></em>);</pre>
<p>Sets the backend name for <em class="parameter"><code>extension</code></em>
.</p>
<p>The internal copy of <em class="parameter"><code>backend_name</code></em>
 is automatically stripped of leading
and trailing whitespace.  If the resulting string is empty, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> is set
instead.</p>
<div class="refsect3">
<a name="id-1.2.3.3.7.4.6"></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>extension</p></td>
<td class="parameter_description"><p>an <a class="link" href="eds-ESourceBackend.html#ESourceBackend" title="struct ESourceBackend"><span class="type">ESourceBackend</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>backend_name</p></td>
<td class="parameter_description"><p> a backend name, or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-3.6.html" title="Index of new symbols in 3.6">3.6</a></p>
</div>
</div>
<div class="refsect1">
<a name="eds-ESourceBackend.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="ESourceBackend"></a><h3>struct ESourceBackend</h3>
<pre class="programlisting">struct ESourceBackend {
	ESourceExtension parent;
	ESourceBackendPrivate *priv;
};
</pre>
<p>Contains only private data that should be read and manipulated using the
functions below.</p>
<p class="since">Since: <a class="link" href="api-index-3.6.html" title="Index of new symbols in 3.6">3.6</a></p>
</div>
<hr>
<div class="refsect2">
<a name="ESourceBackendClass"></a><h3>struct ESourceBackendClass</h3>
<pre class="programlisting">struct ESourceBackendClass {
	ESourceExtensionClass parent_class;
};
</pre>
</div>
</div>
</div>
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