| Pattern | Category | Tags | | :--- | :--- | :--- | | [Abstract Document](abstract-document) | Structural | Extensibility | | [Abstract Factory](abstract-factory) | Creational | Gang of Four | | [Active Object](active-object) | Concurrency | Performance | | [Acyclic Visitor](acyclic-visitor) | Behavioral | Extensibility | | [Adapter](adapter) | Structural | Gang of Four | | [Aggregator Microservices](aggregator-microservices) | Architectural | Cloud distributed | | [Ambassador](ambassador) | Structural | Decoupling | | [API Gateway](api-gateway) | Architectural | Cloud distributed, Decoupling | | [Arrange/Act/Assert](arrange-act-assert) | Idiom | Testing | | [Async Method Invocation](async-method-invocation) | Concurrency | Reactive | | [Balking](balking) | Concurrency | Decoupling | | [Bridge](bridge) | Structural | Gang of Four | | [Builder](builder) | Creational | Gang of Four | | [Business Delegate](business-delegate) | Structural | Decoupling | | [Bytecode](bytecode) | Behavioral | Game programming | | [Caching](caching) | Behavioral | Performance | | [Callback](callback) | Idiom | Reactive | | [Chain of Responsibility](chain-of-responsibility) | Behavioral | Gang of Four | | [Circuit Breaker](circuit-breaker) | Behavioral | Performance, Decoupling | | [Cloud Static Content Hosting](cloud-static-content-hosting) | Cloud | Cloud distributed | | [Collection Pipeline](collection-pipeline) | Functional | Reactive | | [Command](command) | Behavioral | Gang of Four | | [Composite](composite) | Structural | Gang of Four | | [Composite Entity](composite-entity) | Structural | Enterprise Integration Pattern | | [Converter](converter) | Creational | Decoupling | | [Data Access Object](data-access-object) | Architectural | Data access | | [Data Bus](data-bus) | Architectural | Decoupling | | [Data Mapper](data-mapper) | Architectural | Decoupling | | [Data Transfer Object](data-transfer-object) | Architectural | Performance | | [Decorator](decorator) | Structural | Gang of Four, Extensibility | | [Delegation](delegation) | Structural | Decoupling | | [Dependency Injection](dependency-injection) | Creational | Decoupling | | [Dirty Flag](dirty-flag) | Behavioral | Performance, Game programming | | [Double Checked Locking](double-checked-locking) | Idiom | Performance | | [Facade](facade) | Structural | Gang of Four, Decoupling | | [Factory](factory) | Creational | Gang of Four | | [Factory kit](factory-kit) | Creational | Extensibility | | [Factory Method](factory-method) | Creational | Gang of Four, Extensibility | | [Interpreter](interpreter) | Behavioral | Gang of Four | | [Iterator](iterator) | Behavioral | Gang of Four | | [Observer](observer) | Behavioral | Gang of Four, Reactive | | [Private Class Data](private-class-data) | Idiom | Data access | | [Producer Consumer](producer-consumer) | Concurrency | Reactive | | [Proxy](proxy) | Structural | Gang of Four, Decoupling | | [Sharding](sharding) | Behavioral | Performance, Cloud distributed | | [State](state) | Behavioral | Gang of Four | | [Strategy](strategy) | Behavioral | Gang of Four | | [Template Method](table-module) | Behavioral | Gang of Four | | [Version Number](version-number) | Concurrency | Data access, Microservices | | [Visitor](visitor) | Behavioral | Gang of Four |