Files
java-design-patterns/double-dispatch
Ilkka Seppälä 932836f68b Update license plugin (#2020)
* update license plugin

* suppress linelength and emptylineseparator rules

* fix checkstyle error

Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>
2022-09-14 23:22:24 +05:30
..
2019-12-07 18:03:49 +02:00
2022-09-14 23:22:24 +05:30
2022-09-14 23:22:24 +05:30

layout, title, folder, permalink, categories, language, tags
layout title folder permalink categories language tags
pattern Double Dispatch double-dispatch /patterns/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

alt text

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