java-design-patterns/servant/index.md

layout, title, folder, permalink, categories, tags

layout	title	folder	permalink	categories	tags
pattern	Servant	servant	/patterns/servant/	structural	pattern_tag

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.