title, category, language, tags
| title | category | language | tags | |
|---|---|---|---|---|
| Servant | Behavioral | en |
|
Intent
Servant is used for providing some behavior to a group of classes. Instead of defining that behavior in each class - or when we cannot factor out this behavior in the common parent class - it is defined once in the Servant.
Class diagram
Applicability
Use the Servant pattern when
- When we want some objects to perform a common action and don't want to define this action as a method in every class.