/// <summary>
/// opening a connection might take a long time
/// opening a 2.3 MB umlfile with 86 tables requires 87 Seconds on a 2GHz pc with 768MB ram
///
/// therefor the connection opens it only once until either
/// - the connectionstring changes
/// - the file modificationdate changes
/// </summary>
private static SchemaXsd3bEx getXsd3b(string connectionString)
{
return(SchemaXsd3bEx.ReadXsd3b(connectionString, null));
/* feature not completed yet, disabled
* if (connectionString != null)
* {
* ListDictionary parms = PlugInSupport.GetConnectParameters(connectionString);
* String fileName = parms[PlugInSupport.CONNECT_FILENAME].ToString();
*
* if ((lastXsd3b == null)
|| (connectionString.CompareTo(lastConnectString) != 0)
|| (lastModified != System.IO.File.GetLastWriteTime(fileName)))
|| {
|| string tempDir = Path.Combine(Environment.GetEnvironmentVariable("temp"), "tmpLastLoaded.xsd3b");
||
|| // hier gehts weiter
||
|| lastXsd3b = null; // reset if there is a exception in ReadXsd3b
|| lastXsd3b = SchemaXsd3bEx.ReadXsd3b(connectionString, null);
|| lastModified = System.IO.File.GetLastWriteTime(fileName);
|| lastConnectString = connectionString;
|| }
|| }
|| return lastXsd3b;
*/
}