/// <summary> /// Tests the express where-clause specified in param 'clause' /// </summary> /// <param name="clause">The express clause to test</param> /// <returns>true if the clause is satisfied.</returns> public bool ValidateClause(IfcComplexPropertyClause clause) { var retVal = false; try { switch (clause) { case IfcComplexPropertyClause.WR21: retVal = Functions.SIZEOF(HasProperties.Where(temp => Object.ReferenceEquals(this, temp))) == 0; break; case IfcComplexPropertyClause.WR22: retVal = Functions.IfcUniquePropertyName(HasProperties); break; } } catch (Exception ex) { var log = Validation.ValidationLogging.CreateLogger <Xbim.Ifc4.PropertyResource.IfcComplexProperty>(); log?.LogError(string.Format("Exception thrown evaluating where-clause 'IfcComplexProperty.{0}' for #{1}.", clause, EntityLabel), ex); } return(retVal); }