layout, title, folder, permalink, categories, tags
| layout | title | folder | permalink | categories | tags | ||
|---|---|---|---|---|---|---|---|
| pattern | Servant | servant | /patterns/servant/ | Structural |
|
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.
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.