TT:trainRef

trainRef
 

Scheme description / Schemenbeschreibung

Position of trainRef in the XML-Tree / Position von trainRef im XML-Baum

• Parent: <trainGroup>
• Children: None

Multiplicity / Anzahl

[1..1]

Semantics / Bedeutung

The element <trainGroup> allows for grouping of trains which are referenced using <trainRef>.
Das Element <trainRef> wird genutzt um einen einzelnen zum Taktgefüge gehörenden train zu referenzieren.

Attributes of trainRef / Attribute von trainRef

• sequence: This allows for sorting the referenced trains.
  This "counter" defines the chronological order during a day.

• ref: This refers to the id attribute of the associated train element.

• xs:anyAttribute: This provides an extension point for non-railML^® attributes in a foreign namespace. How to use it?

Syntactic Constraints / Syntaktische Beschränkungen

• sequence xs:positiveInteger, optional
  If no sequence is provided, the sequence of the referenced trains shall be assumed as "arbitrary" or "undefined". In no case the sequence of the XML elements in the XML file shall matter.
  Either all or none of the <trainRef> elements in the current <trainGroup> element shall carry sequence attributes.
  The referenced train with the lowest sequence value is interpreted as the first element of the current <trainGroup>.
  Each sequence value shall only be used once within the current <trainGroup>.

• ref xs:IDREF, mandatory

Best practice & Examples / Empfohlene Anwendung & Beispiele

Not yet described. / Noch nicht beschrieben.

Notes / Anmerkungen

Not yet described. / Noch nicht beschrieben.

Open issues / Offene Punkte/Pendenzen

Not yet described. / Noch nicht beschrieben.