ddd-by-examples/library

Features

• Domain-Driven Designs - Provides a reference implementation of strategic and tactical Domain-Driven Design patterns to manage complex business requirements.
• CQRS Patterns - Implements Command Query Responsibility Segregation to separate read and write models for optimized data access.
• Repository Patterns - Uses repositories as a mediator layer to decouple domain logic from specific data source implementations.
• Functional Domain Modeling - Employs pure functions and immutable objects to manage business processes and error states without side effects.
• Repository Pattern Abstractions - Decouples the domain model from the persistence layer using interfaces that treat data storage as in-memory collections.
• Functional State Management - Utilizes pure functions and immutable objects to manage business state transitions and side effects.
• Layered Implementations - Isolates core business logic from external frameworks through hexagonal layering to ensure independence.
• Command Query Responsibility Segregation - Separates data modification logic from data retrieval logic to optimize performance and scalability.
• Command Query Responsibility Segregation Patterns - Implements a separation of read and write models to optimize data access and update operations.
• Modular Monoliths - Organizes the system into independent bounded contexts within a single unit to maintain clear boundaries.
• Hexagonal Architecture Implementations - Implements ports and adapters to isolate core business logic from external frameworks and infrastructure.
• Bounded Contexts - Divides the system into independent modules with explicit linguistic and functional boundaries to isolate business complexity.
• Behavior Driven Development - Implements behavior specifications to validate business logic using a domain-specific language.
• Domain Event Synchronization - Captures state changes as explicit events to coordinate data consistency across autonomous business boundaries.
• Type-State Patterns - Uses the type system to represent business states as distinct classes, ensuring valid transitions at compile time.
• Architecture Rule Enforcement - Employs automated tests to validate dependency rules and prevent infrastructure leaking into core business logic.
• Data Consistency Models - Implements immediate and eventual consistency mechanisms to maintain data integrity across different business boundaries.
• Event-Driven Coordination - Coordinates interactions between decoupled business modules using structured domain events.
• Business Scenario Mappings - Identifies and prioritizes specific business cases to map high-level requirements to detailed architectural design patterns.
• Architectural Constraint Validation - Uses automated tests to enforce architectural boundaries and prevent infrastructure dependencies from leaking into core logic.
• Business Requirement Validations - Uses behavior-driven development to verify that implementations match discovered business requirements.
• Story-Based Test Organization - Implements a domain-specific language for tests that mirrors business stories and ubiquitous language.
• Behavior-Driven Testing - Implements testing patterns that prioritize business stories and ubiquitous language over internal implementation details.
• Domain Event Handlers - Uses domain events to execute side effects and synchronize state across different business aggregates.
• Event Persistence - Captures and stores state changes as explicit events within repositories to support event-driven architectures.
• Domain Driven Design Samples - Modular monolith library system using advanced DDD techniques.
• Domain Driven Design - A comprehensive reference implementation of domain-driven design principles.

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