IS:signalRef signalGroup

signalRef
 

Scheme description / Schemenbeschreibung / Description du schéma

Position of signalRef in the XML-Tree / Position von signalRef im XML-Baum / position de signalRef dans l’aborescence XML

• Parent: <signalGroup>

• Children: None

Multiplicity / Anzahl / Multiplicité

[0..∞]

Semantics / Bedeutung / Sémantique

The element <signalGroup> allows for grouping of signals which are referenced using <signalRef>.

Attributes of signalRef / Attribute von signalRef / Attributs de signalRef

• sequence: This allows for sorting the referenced signals.

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

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

Syntactic Constraints / Syntaktische Beschränkungen / Contraintes syntactiques

• sequence xs:positiveInteger, optional
  If no sequence is provided, the sequence of the referenced signals 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 <signalRef> elements in the current <signalGroup> element shall carry sequence attributes.
  The referenced signal with the lowest sequence value is interpreted as the first element of the current <signalGroup>.
  Each sequence value shall only be used once within the current <signalGroup>.

• ref xs:IDREF, mandatory

Best practice & Examples / Empfohlene Anwendung & Beispiele / Bonnes pratiques & exemples

Not yet described. / Noch nicht beschrieben. / Pas encore décrit.

Notes / Anmerkungen / Notes

Not yet described. / Noch nicht beschrieben. / Pas encore décrit.

Open issues / Offene Punkte/Pedenzen / Questions ouvertes

Not yet described. / Noch nicht beschrieben. / Pas encore décrit.