protected override void DisposeCore()
 {
     lock (_lockObject)
     {
         _connectionDbRepository  = null;
         _projectsRepository      = null;
         _projectsShareRepository = null;
         _queriesRepository       = null;
         _usersRepository         = null;
     }
     QueryBuilderContext.Dispose();
 }
 protected override void DisposeCore()
 {
     lock (_lockObject)
     {
         _connectionDbRepository = null;
         _projectsRepository = null;
         _projectsShareRepository = null;
         _queriesRepository = null;
         _usersRepository = null;
     }
     QueryBuilderContext.Dispose();
 }