25 lines
702 B
Markdown
25 lines
702 B
Markdown
---
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title: Servant
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category: Behavioral
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language: en
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tags:
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- Decoupling
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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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## Class diagram
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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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## Credits
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* [Let's Modify the Objects-First Approach into Design-Patterns-First](http://edu.pecinovsky.cz/papers/2006_ITiCSE_Design_Patterns_First.pdf)
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