Dynamic Dispatch

Kind: mechanism

Layer: Extensibility Core

Record: architecture:dynamic-dispatch

Severity: recommended

Scope: method, interface, runtime

Canonical: Ontology

A mechanism that chooses which operation runs from the receiver or a keyed table at runtime, replacing a conditional over kinds.

Listed in Architecture principles, after Dynamic Binding and before Runtime Extensibility.

Requires

• Polymorphism

Reinforces

• Open/Closed Principle (OCP)

Enables

• Replace Conditional with Polymorphism

Conflicts with

• Type Switching

In tension with

• Traceability

Tensions

• Dynamic Dispatch / Traceability

Violated by

• Type Switching

Refactored by

• Replace Conditional with Polymorphism
• Strategy Pattern

Severity

• recommended

Category

• Runtime Discovery / Dynamic Binding

Linked from

• SOLID / Object-Oriented Design
• Observability / Auditability / Traceability
• Runtime Discovery / Dynamic Binding
• SOLID / Object-Oriented Design
• Severity levels
• The resolutions