Facet pattern

Description:

The Facet design pattern is used to represent different aspects or views of an object, allowing an object to expose multiple interfaces that reflect different facets of its functionality. This pattern is useful in situations where an object needs to be interacted with in various ways depending on the context or role.

Main Elements of the Facet Design Pattern:

1. Core Object: The primary object that contains the core data and functionality.
2. Facet Interfaces: Interfaces that represent different aspects or views of the core object. Each interface provides a specific subset of the core object's functionality.
3. Facet Implementations: Concrete classes that implement the facet interfaces, often acting as wrappers around the core object to provide the necessary views or functionalities.

References:

• Project Contribution Guidelines
• Facet - A Pattern for Dynamic Interfaces

Acceptance Criteria:

1. A core object should be identified or created that contains the primary data and functionality.
2. Multiple facet interfaces should be defined, each representing a different view or aspect of the core object.
3. Concrete classes implementing the facet interfaces should be created, providing the necessary views or functionalities by interacting with the core object.
4. Unit tests should be written to ensure that the facet interfaces and their implementations correctly interact with the core object and provide the expected functionalities.

Review the Java project conventions and the closed linked pull request #1717 before starting, since no source files or test paths are named. Use the acceptance criteria as the completion checklist: a core object, multiple facet interfaces and implementations, plus unit tests showing their interactions and expected behavior.