gets the value of the date property . concode_field_sep XMLGregorianCalendar date concode_elem_sep List<Header.File> file concode_elem_sep String filename concode_elem_sep String ifcProject concode_elem_sep String ifcSpatialStructureElement concode_field_sep void setIfcProject concode_elem_sep void setIfcSpatialStructureElement concode_elem_sep String getFilename concode_elem_sep String getIfcSpatialStructureElement concode_elem_sep String getIfcProject concode_elem_sep void setDate concode_elem_sep List<Header.File> getFile concode_elem_sep void setFilename
XMLGregorianCalendar function ( ) { return date ; }