ReferenceAccessor

class ReferenceAccessor[M]

Description

A generic accessor for references in the model

Inheritance:

• ReferenceAccessor

Children

• ChainedReferenceAccessor

  • ChainedFeatureReference

  • ChainedTypeReference

• ClassifierReference

• FeatureReference

• TypeReference

Members defined in ReferenceAccessor (4 members)

	element	R	Returns the referenced Element.
	modifiable	R	Returns True if this reference can be modified, that is the owning Relationship is an owned member of a Namespace.
	set		try_set but instead raises ValueError if this reference cannot be modified.
	try_set		Try changing the referenced element. Returns None if this reference cannot be modified, otherwise returns element argument.

Attributes

property element: syside.Element | None

Returns the referenced Element.

This may return None, e.g. when reference resolution failed, although in most such cases a placeholder element will be returned instead.

property modifiable: bool

Returns True if this reference can be modified, that is the owning Relationship is an owned member of a Namespace.

Calling set methods when modifiable == False will raise ValueError.

Methods

set(element: syside.M, name: syside.NameID = ...) → syside.M

try_set but instead raises ValueError if this reference cannot be modified.

try_set(element: syside.M, name: syside.NameID = ...) → syside.M | None

Try changing the referenced element. Returns None if this reference cannot be modified, otherwise returns element argument.