EClass

struct EClass

Overview

Represents a class definition in the metamodel, similar to a class declaration in object-oriented programming languages. It defines the structure and behaviour of model objects through structural features, operations, and inheritance relationships.

Overview

EClass serves as the primary metaclass type in Ecore, defining:

• Structural Features: Attributes and references that define the class’s properties

• Operations: Methods that can be invoked on instances

• Inheritance: Supertypes that this class extends (supporting multiple inheritance)

• Metadata: Whether the class is abstract or represents an interface

Creating Classes

Create an EClass using the designated initialiser:

let person = EClass(
    name: "Person",
    isAbstract: false,
    structuralFeatures: [
        // Features would be added here
    ]
)

Inheritance Hierarchy

Classes can extend multiple supertypes through the eSuperTypes property. The allSuperTypes computed property provides the complete inheritance hierarchy including transitive supertypes.

Feature Access

Structural features can be accessed by name using getStructuralFeature(name:) or filtered by type using allAttributes and allReferences.