Apache Causeway

Apache Causeway is an open-source framework for rapidly developing domain-driven applications in Java. It automatically generates user interfaces and APIs from annotated domain models, allowing developers to focus solely on business logic. Built on top of Spring Boot, it promotes clean architecture, modularity, and fast prototyping, making it ideal for enterprise-grade applications and strategic software investments.

Features

• Automatic generation of user interfaces and RESTful/GraphQL APIs from domain models.
• Support for domain entities, view models, and domain services.
• Rich annotation-based configuration for domain behavior and UI layout.
• Mixins for modular behavior contribution across domain objects.
• Event-driven architecture with domain, UI, and lifecycle events.
• Business rule enforcement via declarative annotations and imperative methods.
• Support for custom value types and meta-annotations.
• Modular application structure with support for vertical slices and dependency management.

Capabilities

• Enables rapid application development with minimal UI coding.
• Integrates seamlessly with Spring Boot and other Java frameworks.
• Supports both persistent and temporary state management.
• Provides intra-process event bus for decoupled module interaction.
• Facilitates behavior-driven development and clean separation of concerns.
• Offers layout customization through annotations and XML configuration.
• Allows dynamic discovery and invocation of domain logic.
• Supports testing and prototyping with starter apps and archetypes.

Benefits

• Accelerates development by eliminating boilerplate UI and API code.
• Enhances collaboration between developers and domain experts.
• Improves maintainability through modular design and clean architecture.
• Reduces infrastructure concerns, allowing focus on business logic.
• Enables fast feedback loops and iterative development.
• Promotes reuse and consistency across applications.
• Open-source and vendor-neutral, ensuring long-term flexibility.
• Ideal for strategic software initiatives and custom enterprise solutions.