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<a href="#libgda-4.0-Configuration.synopsis" class="shortcut">Top</a>
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<a href="#libgda-4.0-Configuration.description" class="shortcut">Description</a>
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<a href="#libgda-4.0-Configuration.object-hierarchy" class="shortcut">Object Hierarchy</a>
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<a href="#libgda-4.0-Configuration.properties" class="shortcut">Properties</a>
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<a href="#libgda-4.0-Configuration.signals" class="shortcut">Signals</a>
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<div class="refentry">
<a name="libgda-4.0-Configuration"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="libgda-4.0-Configuration.top_of_page"></a>Configuration</span></h2>
<p>Configuration — Access/Management of libgda configuration</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="libgda-4.0-Configuration.synopsis"></a><h2>Synopsis</h2>
<a name="GdaConfig"></a><pre class="synopsis"> <a class="link" href="libgda-4.0-Configuration.html#GdaConfig-struct" title="GdaConfig">GdaConfig</a>;
struct <a class="link" href="libgda-4.0-Configuration.html#GdaDsnInfo" title="struct GdaDsnInfo">GdaDsnInfo</a>;
<a class="link" href="libgda-4.0-Configuration.html#GdaDsnInfo" title="struct GdaDsnInfo"><span class="returnvalue">GdaDsnInfo</span></a> * <a class="link" href="libgda-4.0-Configuration.html#gda-config-get-dsn-info" title="gda_config_get_dsn_info ()">gda_config_get_dsn_info</a> (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *dsn_name</code></em>);
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="libgda-4.0-Configuration.html#gda-config-define-dsn" title="gda_config_define_dsn ()">gda_config_define_dsn</a> (<em class="parameter"><code>const <a class="link" href="libgda-4.0-Configuration.html#GdaDsnInfo" title="struct GdaDsnInfo"><span class="type">GdaDsnInfo</span></a> *info</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="libgda-4.0-Configuration.html#gda-config-remove-dsn" title="gda_config_remove_dsn ()">gda_config_remove_dsn</a> (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *dsn_name</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="libgda-4.0-Configuration.html#gda-config-dsn-needs-authentication" title="gda_config_dsn_needs_authentication ()">gda_config_dsn_needs_authentication</a> (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *dsn_name</code></em>);
<a class="link" href="GdaDataModel.html" title="GdaDataModel"><span class="returnvalue">GdaDataModel</span></a> * <a class="link" href="libgda-4.0-Configuration.html#gda-config-list-dsn" title="gda_config_list_dsn ()">gda_config_list_dsn</a> (<em class="parameter"><code><span class="type">void</span></code></em>);
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> <a class="link" href="libgda-4.0-Configuration.html#gda-config-get-nb-dsn" title="gda_config_get_nb_dsn ()">gda_config_get_nb_dsn</a> (<em class="parameter"><code><span class="type">void</span></code></em>);
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> <a class="link" href="libgda-4.0-Configuration.html#gda-config-get-dsn-info-index" title="gda_config_get_dsn_info_index ()">gda_config_get_dsn_info_index</a> (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *dsn_name</code></em>);
<a class="link" href="libgda-4.0-Configuration.html#GdaDsnInfo" title="struct GdaDsnInfo"><span class="returnvalue">GdaDsnInfo</span></a> * <a class="link" href="libgda-4.0-Configuration.html#gda-config-get-dsn-info-at-index" title="gda_config_get_dsn_info_at_index ()">gda_config_get_dsn_info_at_index</a> (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> index</code></em>);
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="libgda-4.0-Configuration.html#gda-config-can-modify-system-config" title="gda_config_can_modify_system_config ()">gda_config_can_modify_system_config</a> (<em class="parameter"><code><span class="type">void</span></code></em>);
struct <a class="link" href="libgda-4.0-Configuration.html#GdaProviderInfo" title="struct GdaProviderInfo">GdaProviderInfo</a>;
<a class="link" href="libgda-4.0-Configuration.html#GdaProviderInfo" title="struct GdaProviderInfo"><span class="returnvalue">GdaProviderInfo</span></a> * <a class="link" href="libgda-4.0-Configuration.html#gda-config-get-provider-info" title="gda_config_get_provider_info ()">gda_config_get_provider_info</a> (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *provider_name</code></em>);
<a class="link" href="GdaServerProvider.html" title="GdaServerProvider"><span class="returnvalue">GdaServerProvider</span></a> * <a class="link" href="libgda-4.0-Configuration.html#gda-config-get-provider" title="gda_config_get_provider ()">gda_config_get_provider</a> (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *provider_name</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);
<a class="link" href="GdaDataModel.html" title="GdaDataModel"><span class="returnvalue">GdaDataModel</span></a> * <a class="link" href="libgda-4.0-Configuration.html#gda-config-list-providers" title="gda_config_list_providers ()">gda_config_list_providers</a> (<em class="parameter"><code><span class="type">void</span></code></em>);
<a class="link" href="libgda-4.0-Configuration.html#GdaConfig"><span class="returnvalue">GdaConfig</span></a> * <a class="link" href="libgda-4.0-Configuration.html#gda-config-get" title="gda_config_get ()">gda_config_get</a> (<em class="parameter"><code><span class="type">void</span></code></em>);
</pre>
</div>
<div class="refsect1">
<a name="libgda-4.0-Configuration.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
<a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a>
+----GdaConfig
</pre>
</div>
<div class="refsect1">
<a name="libgda-4.0-Configuration.properties"></a><h2>Properties</h2>
<pre class="synopsis">
"<a class="link" href="libgda-4.0-Configuration.html#GdaConfig--system-filename" title='The "system-filename" property'>system-filename</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>* : Read / Write
"<a class="link" href="libgda-4.0-Configuration.html#GdaConfig--user-filename" title='The "user-filename" property'>user-filename</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>* : Read / Write
</pre>
</div>
<div class="refsect1">
<a name="libgda-4.0-Configuration.signals"></a><h2>Signals</h2>
<pre class="synopsis">
"<a class="link" href="libgda-4.0-Configuration.html#GdaConfig-dsn-added" title='The "dsn-added" signal'>dsn-added</a>" : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">Run First</code></a>
"<a class="link" href="libgda-4.0-Configuration.html#GdaConfig-dsn-changed" title='The "dsn-changed" signal'>dsn-changed</a>" : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">Run First</code></a>
"<a class="link" href="libgda-4.0-Configuration.html#GdaConfig-dsn-removed" title='The "dsn-removed" signal'>dsn-removed</a>" : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">Run First</code></a>
"<a class="link" href="libgda-4.0-Configuration.html#GdaConfig-dsn-to-be-removed" title='The "dsn-to-be-removed" signal'>dsn-to-be-removed</a>" : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">Run First</code></a>
</pre>
</div>
<div class="refsect1">
<a name="libgda-4.0-Configuration.description"></a><h2>Description</h2>
<p>
The functions in this section allow applications an easy access to libgda's
configuration (the list of data sources and database providers).
</p>
<p>
As soon as a <a class="link" href="libgda-4.0-Configuration.html#GdaConfig">GdaConfig</a> is needed (for example when requesting information
about a data source or about a server provider), a single instance object is created,
and no other will need to be created. A pointer to this object can be obtained with
<a class="link" href="libgda-4.0-Configuration.html#gda-config-get" title="gda_config_get ()"><a class="link" href="libgda-4.0-Configuration.html#gda-config-get" title="gda_config_get ()"><code class="function">gda_config_get()</code></a></a>. Of course one can (right after having called
<a class="link" href="libgda-4.0-Libgda-Initialization.html#gda-init" title="gda_init ()"><a class="link" href="libgda-4.0-Libgda-Initialization.html#gda-init" title="gda_init ()"><code class="function">gda_init()</code></a></a>) force the creation of a GdaConfig object with some
specific properties set, using a simple call like:
</p>
<pre class="programlisting">
g_object_new (GDA_TYPE_CONFIG, "user-filename", "my_file", NULL);
</pre>
<p>
Please note that after that call, the caller has a reference to the newly created object, and should technically
call <a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#g-object-unref"><GTKDOCLINK HREF="g-object-unref"><code class="function">g_object_unref()</code></a></GTKDOCLINK> when finished using it. It is safe to do this
but also pointless since that object should not be destroyed (as no other will be created) as <span class="application">Libgda</span> also
keeps a reference for itself.
</p>
<p>
Data sources are defined in a per-user configuration file which is by default <code class="filename">${HOME}/.libgda/config</code> and
in a system wide configuration file which is by default <code class="filename">${prefix}/etc/libgda-4.0/config</code>. Those
filenames can be modified by setting the user-file and
system-file properties for the single <a class="link" href="libgda-4.0-Configuration.html#GdaConfig">GdaConfig</a>
instance. Note that setting either of these properties to <code class="literal">NULL</code> will disable using the corresponding
configuration file (DSN will exist only in memory and their definition will be lost when the application finishes).
</p>
<p>
The <a class="link" href="libgda-4.0-Configuration.html#GdaConfig"><span class="type">GdaConfig</span></a> object implements its own locking mechanism so it is thread-safe.
</p>
<p>
Note about localization: when the <a class="link" href="libgda-4.0-Configuration.html#GdaConfig"><span class="type">GdaConfig</span></a> loads configuration files, it filters the
contents based on the current locale, so for example if your current locale is "de" then
all the loaded strings (for the ones which are translated) will be in the German language.
Changing the locale afterwards will have no effect on the <a class="link" href="libgda-4.0-Configuration.html#GdaConfig"><span class="type">GdaConfig</span></a> and the already loaded
configuration.
The consequence is that you should first call <a href="http://library.gnome.org/devel/glib/unstable/glib-running.html#setlocale"><code class="function">setlocale()</code></a> youself in your code before using
a <a class="link" href="libgda-4.0-Configuration.html#GdaConfig"><span class="type">GdaConfig</span></a> object. As a side note you should also call <a href="http://library.gnome.org/devel/gtk3/gtk-General.html#gtk-init"><code class="function">gtk_init()</code></a> before <a class="link" href="libgda-4.0-LibgdaUI-Initialization.html#gdaui-init" title="gdaui_init ()"><code class="function">gdaui_init()</code></a> because
<a href="http://library.gnome.org/devel/gtk3/gtk-General.html#gtk-init"><code class="function">gtk_init()</code></a> calls <a href="http://library.gnome.org/devel/glib/unstable/glib-running.html#setlocale"><code class="function">setlocale()</code></a>.
</p>
</div>
<div class="refsect1">
<a name="libgda-4.0-Configuration.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="GdaConfig-struct"></a><h3>GdaConfig</h3>
<pre class="programlisting">typedef struct _GdaConfig GdaConfig;</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="GdaDsnInfo"></a><h3>struct GdaDsnInfo</h3>
<pre class="programlisting">struct GdaDsnInfo {
gchar *name;
gchar *provider;
gchar *description;
gchar *cnc_string;
gchar *auth_string;
gboolean is_system;
};
</pre>
<p>
This structure defines the properties of a named data source (DSN).
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="GdaDsnInfo.name"></a>name</code></em>;</span></p></td>
<td>the (unique) name of the DSN (plain text, not RFC 1738 encoded)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="GdaDsnInfo.provider"></a>provider</code></em>;</span></p></td>
<td>the ID of the database provider to be used (plain text, not RFC 1738 encoded)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="GdaDsnInfo.description"></a>description</code></em>;</span></p></td>
<td>a descriptive string (plain text, not RFC 1738 encoded), can be <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="GdaDsnInfo.cnc-string"></a>cnc_string</code></em>;</span></p></td>
<td>the connection string, a semi-colon separated <key>=<value> list where <key> and <value> are RFC 1738 encoded</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="GdaDsnInfo.auth-string"></a>auth_string</code></em>;</span></p></td>
<td>the authentication string, a semi-colon separated <key>=<value> list where <key> and <value> are RFC 1738 encoded. Can be <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> <em class="structfield"><code><a name="GdaDsnInfo.is-system"></a>is_system</code></em>;</span></p></td>
<td>
<a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the DSN is a system wide defined data source</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gda-config-get-dsn-info"></a><h3>gda_config_get_dsn_info ()</h3>
<pre class="programlisting"><a class="link" href="libgda-4.0-Configuration.html#GdaDsnInfo" title="struct GdaDsnInfo"><span class="returnvalue">GdaDsnInfo</span></a> * gda_config_get_dsn_info (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *dsn_name</code></em>);</pre>
<p>
Get information about the DSN named <em class="parameter"><code>dsn_name</code></em>.
</p>
<p>
<em class="parameter"><code>dsn_name</code></em>'s format is "[<username>[:<password>]@]<DSN>" (if <username>
and optionally <password> are provided, they are ignored). Also see the <a class="link" href="libgda-4.0-Utility-functions.html#gda-dsn-split" title="gda_dsn_split ()"><code class="function">gda_dsn_split()</code></a> utility
function.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>dsn_name</code></em> :</span></p></td>
<td>the name of the DSN to look for</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a pointer to read-only <a class="link" href="libgda-4.0-Configuration.html#GdaDsnInfo" title="struct GdaDsnInfo"><span class="type">GdaDsnInfo</span></a> structure, or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if not found. <span class="annotation">[<a href="http://foldoc.org/transfer%20none"><span class="acronym">transfer none</span></a>]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gda-config-define-dsn"></a><h3>gda_config_define_dsn ()</h3>
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gda_config_define_dsn (<em class="parameter"><code>const <a class="link" href="libgda-4.0-Configuration.html#GdaDsnInfo" title="struct GdaDsnInfo"><span class="type">GdaDsnInfo</span></a> *info</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
<p>
Add or update a DSN from the definition in <em class="parameter"><code>info</code></em>.
</p>
<p>
This method may fail with a <code class="literal">GDA_CONFIG_ERROR</code> domain error (see the <span class="type">GdaConfigError</span> error codes).
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td>
<td>a pointer to a filled GdaDsnInfo structure</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td>
<td>a place to store errors, or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>TRUE if no error occurred</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gda-config-remove-dsn"></a><h3>gda_config_remove_dsn ()</h3>
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gda_config_remove_dsn (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *dsn_name</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
<p>
Remove the DSN named <em class="parameter"><code>dsn_name</code></em>.
</p>
<p>
This method may fail with a <code class="literal">GDA_CONFIG_ERROR</code> domain error (see the <span class="type">GdaConfigError</span> error codes).
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>dsn_name</code></em> :</span></p></td>
<td>the name of the DSN to remove</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td>
<td>a place to store errors, or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>TRUE if no error occurred</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gda-config-dsn-needs-authentication"></a><h3>gda_config_dsn_needs_authentication ()</h3>
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gda_config_dsn_needs_authentication (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *dsn_name</code></em>);</pre>
<p>
Tells if the data source identified as <em class="parameter"><code>dsn_name</code></em> needs any authentication. If a <username>
and optionally a <password> are specified, they are ignored.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>dsn_name</code></em> :</span></p></td>
<td>the name of a DSN, in the "[<username>[:<password>]@]<DSN>" format</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>TRUE if an authentication is needed</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gda-config-list-dsn"></a><h3>gda_config_list_dsn ()</h3>
<pre class="programlisting"><a class="link" href="GdaDataModel.html" title="GdaDataModel"><span class="returnvalue">GdaDataModel</span></a> * gda_config_list_dsn (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>
Get a <a class="link" href="GdaDataModel.html" title="GdaDataModel"><span class="type">GdaDataModel</span></a> representing all the configured DSN, and keeping itself up to date with
the changes in the declared DSN.
</p>
<p>
The returned data model is composed of the following columns:
</p>
<div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem"><p>DSN name</p></li>
<li class="listitem"><p>Provider name</p></li>
<li class="listitem"><p>Description</p></li>
<li class="listitem"><p>Connection string</p></li>
<li class="listitem"><p>Username if it exists</p></li>
</ul></div>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new <a class="link" href="GdaDataModel.html" title="GdaDataModel"><span class="type">GdaDataModel</span></a>. <span class="annotation">[<a href="http://foldoc.org/transfer%20full"><span class="acronym">transfer full</span></a>]</span>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gda-config-get-nb-dsn"></a><h3>gda_config_get_nb_dsn ()</h3>
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> gda_config_get_nb_dsn (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>
Get the number of defined DSN
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the number of defined DSN</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gda-config-get-dsn-info-index"></a><h3>gda_config_get_dsn_info_index ()</h3>
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> gda_config_get_dsn_info_index (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *dsn_name</code></em>);</pre>
<p>
Get the index (starting at 0) of the DSN named <em class="parameter"><code>dsn_name</code></em>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>dsn_name</code></em> :</span></p></td>
<td>a DSN</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the index or -1 if not found</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gda-config-get-dsn-info-at-index"></a><h3>gda_config_get_dsn_info_at_index ()</h3>
<pre class="programlisting"><a class="link" href="libgda-4.0-Configuration.html#GdaDsnInfo" title="struct GdaDsnInfo"><span class="returnvalue">GdaDsnInfo</span></a> * gda_config_get_dsn_info_at_index (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> index</code></em>);</pre>
<p>
Get a pointer to a read-only <a class="link" href="libgda-4.0-Configuration.html#GdaDsnInfo" title="struct GdaDsnInfo"><span class="type">GdaDsnInfo</span></a> at the <em class="parameter"><code>index</code></em> position
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>index</code></em> :</span></p></td>
<td>an index</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the pointer or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if no DSN exists at position <em class="parameter"><code>index</code></em>. <span class="annotation">[<a href="http://foldoc.org/transfer%20none"><span class="acronym">transfer none</span></a>]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gda-config-can-modify-system-config"></a><h3>gda_config_can_modify_system_config ()</h3>
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gda_config_can_modify_system_config (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>
Tells if the global (system) configuration can be modified (considering
system permissions and settings)
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>TRUE if system-wide configuration can be modified</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GdaProviderInfo"></a><h3>struct GdaProviderInfo</h3>
<pre class="programlisting">struct GdaProviderInfo {
gchar *id;
gchar *location;
gchar *description;
GdaSet *dsn_params; /* Specs to create a DSN */
GdaSet *auth_params; /* Specs to authenticate a client */
};
</pre>
<p>
This structure holds the information associated to a database provider as discovered by Libgda.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="GdaProviderInfo.id"></a>id</code></em>;</span></p></td>
<td>the unique identifier of the database provider</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="GdaProviderInfo.location"></a>location</code></em>;</span></p></td>
<td>the complete path to the shared library implementing the database provider</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="GdaProviderInfo.description"></a>description</code></em>;</span></p></td>
<td>provider's description</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="GdaSet.html" title="GdaSet"><span class="type">GdaSet</span></a> *<em class="structfield"><code><a name="GdaProviderInfo.dsn-params"></a>dsn_params</code></em>;</span></p></td>
<td>a <a class="link" href="GdaSet.html" title="GdaSet"><span class="type">GdaSet</span></a> containing all the parameters which can/must be specified when opening a connection or defining a named data source (DSN)</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="GdaSet.html" title="GdaSet"><span class="type">GdaSet</span></a> *<em class="structfield"><code><a name="GdaProviderInfo.auth-params"></a>auth_params</code></em>;</span></p></td>
<td>a <a class="link" href="GdaSet.html" title="GdaSet"><span class="type">GdaSet</span></a> containing all the authentication parameters</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gda-config-get-provider-info"></a><h3>gda_config_get_provider_info ()</h3>
<pre class="programlisting"><a class="link" href="libgda-4.0-Configuration.html#GdaProviderInfo" title="struct GdaProviderInfo"><span class="returnvalue">GdaProviderInfo</span></a> * gda_config_get_provider_info (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *provider_name</code></em>);</pre>
<p>
Get some information about the a database provider (adapter) named
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>provider_name</code></em> :</span></p></td>
<td>a database provider</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a pointer to read-only <a class="link" href="libgda-4.0-Configuration.html#GdaProviderInfo" title="struct GdaProviderInfo"><span class="type">GdaProviderInfo</span></a> structure, or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if not found. <span class="annotation">[<a href="http://foldoc.org/transfer%20none"><span class="acronym">transfer none</span></a>]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gda-config-get-provider"></a><h3>gda_config_get_provider ()</h3>
<pre class="programlisting"><a class="link" href="GdaServerProvider.html" title="GdaServerProvider"><span class="returnvalue">GdaServerProvider</span></a> * gda_config_get_provider (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *provider_name</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
<p>
Get a pointer to the session-wide <a class="link" href="GdaServerProvider.html" title="GdaServerProvider"><span class="type">GdaServerProvider</span></a> for the
provider named <em class="parameter"><code>provider_name</code></em>. The caller must not call <a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#g-object-unref"><code class="function">g_object_unref()</code></a> on the
returned object.
</p>
<p>
This method may fail with a <code class="literal">GDA_CONFIG_ERROR</code> domain error (see the <span class="type">GdaConfigError</span> error codes).
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>provider_name</code></em> :</span></p></td>
<td>a database provider</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td>
<td>a place to store errors, or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a pointer to the <a class="link" href="GdaServerProvider.html" title="GdaServerProvider"><span class="type">GdaServerProvider</span></a>, or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if an error occurred. <span class="annotation">[<a href="http://foldoc.org/transfer%20none"><span class="acronym">transfer none</span></a>]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gda-config-list-providers"></a><h3>gda_config_list_providers ()</h3>
<pre class="programlisting"><a class="link" href="GdaDataModel.html" title="GdaDataModel"><span class="returnvalue">GdaDataModel</span></a> * gda_config_list_providers (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>
Get a <a class="link" href="GdaDataModel.html" title="GdaDataModel"><span class="type">GdaDataModel</span></a> representing all the installed database providers.
</p>
<p>
The returned data model is composed of the following columns:
</p>
<div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem"><p>Provider name</p></li>
<li class="listitem"><p>Description</p></li>
<li class="listitem"><p>DSN parameters</p></li>
<li class="listitem"><p>Authentication parameters</p></li>
<li class="listitem"><p>File name of the plugin</p></li>
</ul></div>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new <a class="link" href="GdaDataModel.html" title="GdaDataModel"><span class="type">GdaDataModel</span></a>. <span class="annotation">[<a href="http://foldoc.org/transfer%20full"><span class="acronym">transfer full</span></a>]</span>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gda-config-get"></a><h3>gda_config_get ()</h3>
<pre class="programlisting"><a class="link" href="libgda-4.0-Configuration.html#GdaConfig"><span class="returnvalue">GdaConfig</span></a> * gda_config_get (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>
Get a pointer to the global (unique) <a class="link" href="libgda-4.0-Configuration.html#GdaConfig"><span class="type">GdaConfig</span></a> object. This functions increments
the reference count of the object, so you need to call <a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#g-object-unref"><code class="function">g_object_unref()</code></a> on it once finished.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a non <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> pointer to the unique <a class="link" href="libgda-4.0-Configuration.html#GdaConfig"><span class="type">GdaConfig</span></a>. <span class="annotation">[<a href="http://foldoc.org/transfer%20full"><span class="acronym">transfer full</span></a>]</span>
</td>
</tr></tbody>
</table></div>
</div>
</div>
<div class="refsect1">
<a name="libgda-4.0-Configuration.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GdaConfig--system-filename"></a><h3>The <code class="literal">"system-filename"</code> property</h3>
<pre class="programlisting"> "system-filename" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>* : Read / Write</pre>
<p>
File to use for system-wide DSN list. When changed, the whole list of DSN will be reloaded.
</p>
<p>Default value: NULL</p>
</div>
<hr>
<div class="refsect2">
<a name="GdaConfig--user-filename"></a><h3>The <code class="literal">"user-filename"</code> property</h3>
<pre class="programlisting"> "user-filename" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>* : Read / Write</pre>
<p>
File to use for per-user DSN list. When changed, the whole list of DSN will be reloaded.
</p>
<p>Default value: NULL</p>
</div>
</div>
<div class="refsect1">
<a name="libgda-4.0-Configuration.signal-details"></a><h2>Signal Details</h2>
<div class="refsect2">
<a name="GdaConfig-dsn-added"></a><h3>The <code class="literal">"dsn-added"</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span> user_function (<a class="link" href="libgda-4.0-Configuration.html#GdaConfig"><span class="type">GdaConfig</span></a> *conf,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> new_dsn,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data) : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">Run First</code></a></pre>
<p>
Gets emitted whenever a new DSN has been defined
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>conf</code></em> :</span></p></td>
<td>the <a class="link" href="libgda-4.0-Configuration.html#GdaConfig"><span class="type">GdaConfig</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>new_dsn</code></em> :</span></p></td>
<td>a <a class="link" href="libgda-4.0-Configuration.html#GdaDsnInfo" title="struct GdaDsnInfo"><span class="type">GdaDsnInfo</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>user data set when the signal handler was connected.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GdaConfig-dsn-changed"></a><h3>The <code class="literal">"dsn-changed"</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span> user_function (<a class="link" href="libgda-4.0-Configuration.html#GdaConfig"><span class="type">GdaConfig</span></a> *conf,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> dsn,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data) : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">Run First</code></a></pre>
<p>
Gets emitted whenever a DSN's definition has been changed
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>conf</code></em> :</span></p></td>
<td>the <a class="link" href="libgda-4.0-Configuration.html#GdaConfig"><span class="type">GdaConfig</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>dsn</code></em> :</span></p></td>
<td>a <a class="link" href="libgda-4.0-Configuration.html#GdaDsnInfo" title="struct GdaDsnInfo"><span class="type">GdaDsnInfo</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>user data set when the signal handler was connected.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GdaConfig-dsn-removed"></a><h3>The <code class="literal">"dsn-removed"</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span> user_function (<a class="link" href="libgda-4.0-Configuration.html#GdaConfig"><span class="type">GdaConfig</span></a> *conf,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> old_dsn,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data) : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">Run First</code></a></pre>
<p>
Gets emitted whenever a DSN has been removed
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>conf</code></em> :</span></p></td>
<td>the <a class="link" href="libgda-4.0-Configuration.html#GdaConfig"><span class="type">GdaConfig</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>old_dsn</code></em> :</span></p></td>
<td>a <a class="link" href="libgda-4.0-Configuration.html#GdaDsnInfo" title="struct GdaDsnInfo"><span class="type">GdaDsnInfo</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>user data set when the signal handler was connected.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GdaConfig-dsn-to-be-removed"></a><h3>The <code class="literal">"dsn-to-be-removed"</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span> user_function (<a class="link" href="libgda-4.0-Configuration.html#GdaConfig"><span class="type">GdaConfig</span></a> *conf,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> old_dsn,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data) : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">Run First</code></a></pre>
<p>
Gets emitted whenever a DSN is about to be removed
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>conf</code></em> :</span></p></td>
<td>the <a class="link" href="libgda-4.0-Configuration.html#GdaConfig"><span class="type">GdaConfig</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>old_dsn</code></em> :</span></p></td>
<td>a <a class="link" href="libgda-4.0-Configuration.html#GdaDsnInfo" title="struct GdaDsnInfo"><span class="type">GdaDsnInfo</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>user data set when the signal handler was connected.</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
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