Refactored so that it will accept any parameters value that supports to_h.
parameters_hash? needed to return hash.
Finished refactoring to DiagramFile from DiaDatabaseFile.
Refactored to reflect DiaDatabaseFile is now DiagramFile.
Modified parameters_hash? to use top level rescue.
Renamed methods in BaseMixin because they don't return true or false.
Renamed BaseMixin to ParameterMixin since that is more accurate.
Renamed TestDiaDatabaseFileMixin to something more appropriate.
Interface to provide methods to extract object attributes from XML which represents individual objects.
Generic diagram connection point.
Connection point specific to references
Basic table column
Added attributes
Modifed DiagramFile to require a constructor parameter and modified the tests accordingly.
Modified to require parameter for constructor.
Modified diagram to reflect refactoring.