java-design-patterns/double-dispatch/README.md

title, category, language, tag

title	category	language	tag
Double Dispatch	Idiom	en	Extensibility

Intent

Double Dispatch pattern is a way to create maintainable dynamic behavior based on receiver and parameter types.

Class diagram

Applicability

Use the Double Dispatch pattern when

• the dynamic behavior is not defined only based on receiving object's type but also on the receiving method's parameter type.

Real world examples

• ObjectOutputStream