Abstract Class Name: Expression

Superclass - SEDRIS Abstract Base

Subclasses

• Function
• Literal
• Variable

Definition

An abstract base class used to express values that are used by Control Links and their related classes. Expressions represent places within a transmittal where consuming systems must perform an evaluation in order to get the exact value of the field of an object.

Primary Page in DRM Diagram:

• 16

Secondary Pages in DRM Diagram:

• 7
• 17

Example

See individual subclasses for examples.

Constraints

• Non Cyclic Aggregations

Component of (two-way)

• optionally, some Control Links
• optionally, some Feature Model Instances through Feature Instance Template Indices
• optionally, some Functions
• optionally, some Geometry Model Instances through Geometry Instance Template Indices