Unique references in their name space.
semanticId of the referenced model element (type = ModelReference).
For external references there typically is no semantic ID.
Note: It is recommended to use a external reference.
Type of the reference.
Denotes, whether reference is an external reference or a model reference.
Dispatch visitor on this instance.
to visit this instance
Dispatch visitor with context on this instance.
type of the context
to visit this instance
to be passed along to the dispatched visitor method
Dispatch the transformer on this instance.
transformation of this instance
T - type of the transformation result
to transform this instance
Dispatch the transformer on this instance in context.
transformation of this instance
T - type of the transformation result
ContextT - type of the transformation context
to transform this instance
to be passed along to the transformer
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Reference to either a model element of the same or another AAS or to an external entity.
Remarks
A reference is an ordered list of keys.
A model reference is an ordered list of keys, each key referencing an element. The complete list of keys may for example be concatenated to a path that then gives unique access to an element.
An external reference is a reference to an external entity.
Constraint
AASd-121: For Reference's the value of type of the first key of " keys shall be one of GLOBALLY_IDENTIFIABLES.Constraint
AASd-122: For external references, i.e. Reference's with type = ExternalReference, the value of type of the first key of keys shall be one of GENERIC_GLOBALLY_IDENTIFIABLES.Constraint
AASd-123: For model references, i.e. Reference's with type = ModelReference, the value of type of the first key of keys shall be one of AAS_IDENTIFIABLES.Constraint
AASd-124: For external references, i.e. Reference's with type = ExternalReference, the last key of keys shall be either one of GENERIC_GLOBALLY_IDENTIFIABLES or one of GENERIC_FRAGMENT_KEYS.Constraint
AASd-125: For model references, i.e. Reference's with type = ModelReference, with more than one key in keys the value of type of each of the keys following the first key of keys shall be one of FRAGMENT_KEYS.Note: Constraint AASd-125 ensures that the shortest path is used.
Constraint
AASd-126: For model references, i.e. Reference's with type = ModelReference, with more than one key in keys the value of type of the last key in the reference key chain may be one of GENERIC_FRAGMENT_KEYS or no key at all shall have a value out of GENERIC_FRAGMENT_KEYS.Constraint
AASd-127: For model references, i.e. Reference's with type = ModelReference, with more than one key in keys a key with type FragmentReference shall be preceded by a key with type File or Blob. All other AAS fragments, i.e. type values out of AAS_SUBMODEL_ELEMENTS_AS_KEYS, do not support fragments.Note: Which kind of fragments are supported depends on the content type and the specification of allowed fragment identifiers for the corresponding resource being referenced via the reference.
Constraint
AASd-128: For model references, i.e. Reference's with type = ModelReference, the value of a Key preceded by a Key with type = SubmodelElementList is an integer number denoting the position in the array of the submodel element list.