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JurenXu
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* Add files: - App.java - Country.java - CountryDao.java - CountrySchemaSql.java - CountryTest.java - README.md - serialize-entity.urm.puml - pom.xml (inherit from parent pom.xml) Update files: - pom.xml (parent pom.xml, add 1 module called serialized-entity) * Fix duplicated error in pom.xml * Update: - pom.xml (module servant, changed by error, now fixed) - pom.xml (module serialized-entity) * Update: - pom.xml (changed, artifactId) * Update: - pom.xml Add: AppTest.java * Resolved changes required by the reviewer Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com>
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.