Adapter Pattern

Kind: pattern

Layer: Design Patterns Core

Record: architecture:adapter-pattern

Severity: mandatory

Scope: integration, boundary

Canonical: Ontology

A design pattern that wraps a component with an incompatible interface so it implements the interface its callers expect.

Listed in Architecture principles, after Singleton Pattern and before Facade Pattern.

Requires

• Incompatible Interfaces

Reinforces

• Anti-Corruption Layer
• Replaceability

Enables

• Interoperability

Conflicts with

• Direct External Coupling

In tension with

• Mapping Overhead

Tensions

• Adapter Pattern / Mapping Overhead

Violated by

• Direct External Coupling

Refactored by

• Extract Adapter
• Anti-Corruption Layer

Severity

• mandatory

Category

• Structural Patterns

Enabled by

• Interface-Based Design

Refactors

• Composability

Linked from

• Semantic operations
• Agents as executed contracts
• Domain Architecture
• Contracts / Interfaces / Compatibility
• Core Modular Design
• Plugin / Extensibility / IoC
• Codebase / System Architecture Styles
• Quality Attributes
• Structural Patterns
• Severity levels
• The resolutions

in this codebase

• packFolder