23 lines
598 B
Markdown
23 lines
598 B
Markdown
---
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layout: pattern
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title: Servant
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folder: servant
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permalink: /patterns/servant/
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categories: Structural
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tags:
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- Java
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- Difficulty-Beginner
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---
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## Intent
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Servant is used for providing some behavior to a group of classes.
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Instead of defining that behavior in each class - or when we cannot factor out
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this behavior in the common parent class - it is defined once in the Servant.
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## Applicability
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Use the Servant pattern when
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* when we want some objects to perform a common action and don't want to define this action as a method in every class.
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