BasicEditingDomain

@MainActor final class BasicEditingDomain

Overview

The BasicEditingDomain serves as the central coordinator for all model modifications, integrating command execution, change notification, and resource management. It provides a unified interface for creating and executing commands while maintaining model consistency and enabling undo/redo capabilities.

Overview

The editing domain manages several key aspects of model editing:

• Command Creation: Factory methods for common editing operations

• Command Execution: Coordinated execution through the command stack

• Change Notification: Broadcasting of model changes to observers

• Resource Management: Coordination with resource sets and persistence

• Transaction Support: Atomic operation grouping (future enhancement)

Concurrency Model

The BasicEditingDomain is implemented as an actor to ensure thread-safe access to the command stack and editing state. All model modifications are serialised through the actor’s message queue to prevent race conditions.

Example Usage

let editingDomain = BasicEditingDomain(resourceSet: myResourceSet)

// Create and execute a set command
let command = editingDomain.createSetCommand(
    object: person,
    feature: nameAttribute,
    value: "John Doe"
)
let result = try await editingDomain.execute(command)

// Undo the change
try await editingDomain.undo()