FeatureTyping SysML

class FeatureTyping

Implementation of FeatureTyping defined in the KerML specification.

Specification:

FeatureTyping is Specialization in which the specific Type is a Feature. This means the set of instances of the (specific) typed_feature is a subset of the set of instances of the (general) type. In the simplest case, the type is a Classifier, whereupon the typed_feature has values that are instances of the Classifier.

For language description, see section 7.3.4.3 of the KerML specification. For more details on the model, see section 8.3.3.3.7 of the KerML specification.

Inheritance:

• AstNode

• Element

• Relationship

• Specialization

• FeatureTyping

Children

• ConjugatedPortTyping

Members defined in FeatureTyping (7 members)

	CHAINABLE	R	Whether this relationship can be used with chained features.
	STD	R	All subtypes of FeatureTyping according to the specification.
	owning_feature	R SysML	Implementation of owning_feature defined in the KerML specification.
	type	R SysML	Implementation of type defined in the KerML specification.
	type_target	R	Syside specific accessor for manipulating the target of type.
	typed_feature	R SysML	Implementation of typed_feature defined in the KerML specification.
	typed_feature_target	R	Syside specific accessor for manipulating the target of typed_feature.

Members inherited from Specialization (6 members)

	children	R	The elements enclosed by curly brackets in textual syntax.
	general	R SysML	Implementation of general defined in the KerML specification.
	general_target	R	Syside specific accessor for manipulating the target of general.
	owning_type	R SysML	Implementation of owning_type defined in the KerML specification.
	specific	R SysML	Implementation of specific defined in the KerML specification.
	specific_target	R	Syside specific accessor for manipulating the target of specific.

Members inherited from Relationship (12 members)

	first_source	R	Convenience method for sources[0].
	first_target	R	Convenience method for targets[0].
	is_implied	RW SysML	Implementation of is_implied defined in the KerML specification.
	is_visibility_implied	R	Returns True if this Relationship is using implicit visibility.
	owned_related_elements	R SysML	Implementation of owned_related_element defined in the KerML specification.
	owning_related_element	R SysML	Implementation of owning_related_element defined in the KerML specification.
	related_elements	R SysML	Implementation of related_element defined in the KerML specification.
	sources	R SysML	Implementation of source defined in the KerML specification.
	targets	R SysML	Implementation of target defined in the KerML specification.
	visibility	RW	The visibility level of the related elements from this Relationship relative to the owning_related_element.
	reset_visibility		Reset visibility to its implicit value.
	try_set_visibility		Non-throwing alternative to visibility setter.

Members inherited from Element (25 members)

	alias_ids	R SysML	Implementation of alias_ids defined in the KerML specification.
	comments	R	The owned Comments related by owned_relationships.
	declared_name	RW SysML	Implementation of declared_name defined in the KerML specification.
	declared_short_name	RW SysML	Implementation of declared_short_name defined in the KerML specification.
	documentation	R SysML	Implementation of documentation defined in the KerML specification.
	element_id	RW SysML	Implementation of element_id defined in the KerML specification.
	is_implied_included	R SysML	Implementation of is_implied_included defined in the KerML specification.
	is_library_element	R SysML	Implementation of is_library_element defined in the KerML specification.
	metadata	R	The owned metadata related by owned_relationships.
	name	R SysML	Implementation of name defined in the KerML specification.
	owned_annotations	R SysML	Implementation of owned_annotation defined in the KerML specification.
	owned_elements	R SysML	Implementation of owned_element defined in the KerML specification.
	owned_relationships	R SysML	Implementation of owned_relationship defined in the KerML specification.
	owner	R SysML	Implementation of owner defined in the KerML specification.
	owning_membership	R SysML	Implementation of owning_membership defined in the KerML specification.
	owning_namespace	R SysML	Implementation of owning_namespace defined in the KerML specification.
	owning_relationship	R SysML	Implementation of owning_relationship defined in the KerML specification.
	path	R	Return a unique description of the location of this Element in the containment structure rooted in a root Namespace. In most cases the segments will be identical to QualifiedName.
	qualified_name	R SysML	Implementation of qualified_name defined in the KerML specification.
	scoped_owner	R	The owner of this Element as the parent of owning_membership or owning_relationship otherwise.
	sema_state	RW	The state of semantic resolution for this Element. Based on this, sema may skip elements to avoid duplicate work, e.g. when resolving elements in a group of related documents.
	short_name	R SysML	Implementation of short_name defined in the KerML specification.
	textual_representations	R SysML	Implementation of textual_representation defined in the KerML specification.
	__str__
	matches_qualified_name		Check if the qualified name of this Element matches the provided segments of a qualified name.

Members inherited from AstNode (7 members)

	cst_node	R	The source CST node of self if one exists.
	document	R	The document that owns this node.
	parent	R	The parent node of self.
	__hash__		Identity based hash of this node.
	cast		cast(self, *type: type[TNode]) -> TNode
	isinstance		Chainable equivalent to isintance(self, type)
	try_cast		Checked cast to type.

Attributes

CHAINABLE: bool = False

Whether this relationship can be used with chained features.

Using this in, e.g. append_chain, will raise TypeError.

STD: tuple[type[syside.FeatureTyping], ...] = Ellipsis

All subtypes of FeatureTyping according to the specification.

This is needed because the implementation does not use multiple inheritance like the standard metamodel. However, all would-be inherited attributes are implemented explicitly on classes in FeatureTyping.Std.

When working with standard metamodel types, use:

if isinstance(element, FeatureTyping.STD):
    ...

For type hints, instead use FeatureTyping.Std:

def function(element: Element) -> FeatureTyping.Std:
    ...

Note that FeatureTyping.Std is only defined during TYPE_CHECKING, depending on the Python version used either from __future__ import annotations or def function(...) -> "FeatureTyping.Std" may be required to ensure that annotations are resolved lazily without an actual object present.

property owning_feature: syside.Feature | None

Implementation of owning_feature defined in the KerML specification.

Specification:

A typed_feature that is also the owning_related_element of this FeatureTyping.

See section 8.3.3.3.7 of the KerML specification for more details.

property type: syside.Type | None

Implementation of type defined in the KerML specification.

Specification:

The Type that is being applied by this FeatureTyping.

See section 8.3.3.3.7 of the KerML specification for more details.

property type_target: syside.ChainedTypeReference

Syside specific accessor for manipulating the target of type.

property typed_feature: syside.Feature | None

Implementation of typed_feature defined in the KerML specification.

Specification:

The Feature that has a type determined by this FeatureTyping.

See section 8.3.3.3.7 of the KerML specification for more details.

property typed_feature_target: syside.ChainedFeatureReference

Syside specific accessor for manipulating the target of typed_feature.

Used in

• syside.Feature

  • owned_typings

• syside.FeatureTyping

  • STD