Mathias Paulenko

Separate in-memory domain objects from the database by delegating persistence to a dedicated mapper layer, keeping models...

Give each microservice its own private database to ensure loose coupling, independent deployment, and technology heterogeneity across the...

Coordinate mutually exclusive access to shared resources across distributed nodes using a consensus-based lock service, preventing race...

Capture and publish major occurrences within a domain model to decouple side effects from core business logic and enable reactive workflows.

Load related data in a single query rather than multiple round-trips, preventing the N+1 problem and improving read performance.

Compose entities from pure data components and process them with systems, enabling high-performance and flexible game object architecture...

Decouple components by routing events through a central bus. A behavioral pattern for loosely coupled communication between modules.

Replicate state changes across services by publishing events that carry the full updated entity state, enabling consumers to maintain their...

Provide a simplified interface to a complex subsystem. A structural pattern that hides implementation details behind a clean API.

Route all incoming requests through a single handler that dispatches to the appropriate page command, centralizing request processing and...

Place a validation and security boundary at the edge of a system to inspect, sanitize, and authenticate all incoming requests before they...

Process messages from a queue exactly once regardless of duplicates by using idempotent operations, unique identifiers, and deduplication...

Ensure each object is loaded only once per transaction by caching instances by their primary key, preventing duplicate in-memory...

Use a dedicated inbox table or queue to record incoming events or requests, ensuring reliable delivery, deduplication, and idempotent...

Compose cross-cutting concerns into a chain of pluggable filters that intercept requests and responses, enabling reusable preprocessing and...

Encapsulate lifecycle, coordination, and access control for a set of related objects through a dedicated manager class that centralizes...

Use empty interfaces as metadata tags to signal properties or capabilities at compile time and runtime, enabling type-safe checks without...

Precompute and store expensive query results in a read-optimized cache to avoid repeated costly aggregation or joins across large datasets.

Add reusable behavior to classes without inheritance by composing methods from shared objects into a target class.

Separate presentation logic from the view by introducing a presenter that intermediates between the model and a passive view, enabling...

Bind UI components declaratively to a ViewModel that exposes data and commands, enabling automatic synchronization between view and state.

Encapsulate private state and behavior inside a self-contained unit with a public API. A structural pattern for organizing code into...

Manage a map of named singleton instances, providing controlled access to a finite set of shared objects identified by keys.

Use a default object instead of null references to eliminate null checks and simplify client code. A behavioral pattern for safer defaults.