public IDbReadOnlyScope CreateReadOnly(DbScopeOption joiningOption = DbScopeOption.JoinExisting)
 {
     return new EntityFrameworkReadOnlyScope(
         joiningOption: joiningOption,
         isolationLevel: null,
         dbFactory: _dbFactory);
 }
 public IDbScope Create(DbScopeOption joiningOption = DbScopeOption.JoinExisting)
 {
     return new EntityFrameworkScope(
         joiningOption: joiningOption,
         readOnly: false,
         isolationLevel: null);
 }