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5  <title>Description of tango_get_db_property</title>
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19
20<h1>tango_get_db_property
21</h1>
22
23<h2><a name="_name"></a>PURPOSE <a href="#_top"><img alt="^" border="0" src="../../../up.png"></a></h2>
24<div class="box"><strong>TANGO_GET_DG_PROPERTY - Queries for a Database property</strong></div>
25
26<h2><a name="_synopsis"></a>SYNOPSIS <a href="#_top"><img alt="^" border="0" src="../../../up.png"></a></h2>
27<div class="box"><strong>function prop=tango_get_db_property(groupname,propertyname,dbserver) </strong></div>
28
29<h2><a name="_description"></a>DESCRIPTION <a href="#_top"><img alt="^" border="0" src="../../../up.png"></a></h2>
30<div class="fragment"><pre class="comment">TANGO_GET_DG_PROPERTY - Queries for a Database property
31
32  [prop]=tango_get_db_Property(groupname,propertyname,dbserver)
33
34 INPUTS
35 1. groupname -  name of the group in the property tree in Tango DB
36 2. propertyname - property requested in the groupname
37 3. dbserver - TANGO database device serve  'sys/database/dbds' by default
38 
39 OUTPUTS
40  1. prop cell array of strings with the system property
41
42 EXEMPLES
43  prop = tango_get_db_property('anneau','tracy_bpm_mapping')
44 
45 See also <a href="tango_set_db_property.html" class="code" title="function prop=tango_set_db_property(groupname,propertyname,prop,dbserver)">tango_set_db_property</a></pre></div>
46
47<!-- crossreference -->
48<h2><a name="_cross"></a>CROSS-REFERENCE INFORMATION <a href="#_top"><img alt="^" border="0" src="../../../up.png"></a></h2>
49This function calls:
50<ul style="list-style-image:url(../../../matlabicon.gif)">
51<li><a href="tango_get_db_property.html" class="code" title="function prop=tango_get_db_property(groupname,propertyname,dbserver)">tango_get_db_property</a>    TANGO_GET_DG_PROPERTY - Queries for a Database property</li><li><a href="tango_get_dbname.html" class="code" title="function dbname = tango_get_dbname(varargin)">tango_get_dbname</a>  TANGO_GET_DBNAME - Returns tango database name</li></ul>
52This function is called by:
53<ul style="list-style-image:url(../../../matlabicon.gif)">
54<li><a href="get_device_name.html" class="code" title="function [devicelist commonlist] = get_device_name(machine,property,magnet)">get_device_name</a> GET_DEVICE_NAME - Gets device list from mapping read in tango database</li><li><a href="tango_get_db_property.html" class="code" title="function prop=tango_get_db_property(groupname,propertyname,dbserver)">tango_get_db_property</a> TANGO_GET_DG_PROPERTY - Queries for a Database property</li><li><a href="tango_set_db_property.html" class="code" title="function prop=tango_set_db_property(groupname,propertyname,prop,dbserver)">tango_set_db_property</a>   TANGO_GET_DG_PROPERTY - Queries for a Database property</li></ul>
55<!-- crossreference -->
56
57
58<h2><a name="_source"></a>SOURCE CODE <a href="#_top"><img alt="^" border="0" src="../../../up.png"></a></h2>
59<div class="fragment"><pre>0001 <a name="_sub0" href="#_subfunctions" class="code">function prop=tango_get_db_property(groupname,propertyname,dbserver)</a>
600002 <span class="comment">%TANGO_GET_DG_PROPERTY - Queries for a Database property</span>
610003 <span class="comment">%</span>
620004 <span class="comment">%  [prop]=tango_get_db_Property(groupname,propertyname,dbserver)</span>
630005 <span class="comment">%</span>
640006 <span class="comment">% INPUTS</span>
650007 <span class="comment">% 1. groupname -  name of the group in the property tree in Tango DB</span>
660008 <span class="comment">% 2. propertyname - property requested in the groupname</span>
670009 <span class="comment">% 3. dbserver - TANGO database device serve  'sys/database/dbds' by default</span>
680010 <span class="comment">%</span>
690011 <span class="comment">% OUTPUTS</span>
700012 <span class="comment">%  1. prop cell array of strings with the system property</span>
710013 <span class="comment">%</span>
720014 <span class="comment">% EXEMPLES</span>
730015 <span class="comment">%  prop = tango_get_db_property('anneau','tracy_bpm_mapping')</span>
740016 <span class="comment">%</span>
750017 <span class="comment">% See also tango_set_db_property</span>
760018
770019 <span class="comment">%</span>
780020 <span class="comment">% Modified By Laurent S. Nadolski</span>
790021
800022 <span class="keyword">if</span> (nargin &lt; 2)
810023     help <a href="tango_get_db_property.html" class="code" title="function prop=tango_get_db_property(groupname,propertyname,dbserver)">tango_get_db_property</a>
820024     <span class="keyword">return</span>;
830025 <span class="keyword">elseif</span> nargin &lt; 3
840026   dbserver = <a href="tango_get_dbname.html" class="code" title="function dbname = tango_get_dbname(varargin)">tango_get_dbname</a>;
850027 <span class="keyword">end</span>
860028
870029 argin = {groupname,propertyname};
880030 res = tango_command_inout(dbserver,<span class="string">'DbGetProperty'</span>,argin);
890031
900032 <span class="keyword">if</span> (tango_error == -1)
910033   <span class="comment">%- handle error</span>
920034    tango_print_error_stack;
930035    <span class="keyword">return</span>
940036 <span class="keyword">end</span>
950037
960038 <span class="comment">%% Overhead 4 lines</span>
970039 dim = 4;
980040 nb = str2num(char(res(dim)));
990041
1000042 <span class="comment">%% return cell array of string</span>
1010043 prop = res(dim+1:dim+nb);</pre></div>
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