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Ilkka Seppälä
4108f86177
* Changed database implementation. Removed static objects. * Fix Logs * Fix 40 errors from checkstyle plugin run. 139 left)) * Fix CacheStore errors from checkstyle plugin 107 left * Fix last errors in checkstyle. * Fix sonar issues * Fix issues in VALIDATE phase * Fix Bug with mongo connection. Used "Try with resources" * Add test * Added docker-compose for mongo db. MongoDb db work fixed. * Provided missing tests * Comments to start Application with mongo. * Fix some broken links * Remove extra space * Update filename * Fix some links in localization folders * Fix link * Update frontmatters * Work on patterns index page * Work on index page * Fixes according PR comments. Mainly Readme edits. * fix frontmatter * add missing png * Update pattern index.md * Add index.md for Chinese translation * update image paths * update circuit breaker image paths * Update image paths for localizations * add generated puml * Add missing image * Update img file extensions * Update the rest of the EN and ZH patterns to conform with the new website Co-authored-by: Victor Zalevskii <zvictormail@gmail.com>
31 lines
972 B
Markdown
31 lines
972 B
Markdown
---
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title: Feature Toggle
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category: Behavioral
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language: en
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tags:
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- Extensibility
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---
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## Also known as
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Feature Flag
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## Intent
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Used to switch code execution paths based on properties or groupings. Allowing new features to be released, tested
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and rolled out. Allowing switching back to the older feature quickly if needed. It should be noted that this pattern,
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can easily introduce code complexity. There is also cause for concern that the old feature that the toggle is eventually
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going to phase out is never removed, causing redundant code smells and increased maintainability.
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## Class diagram
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## Applicability
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Use the Feature Toggle pattern when
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* Giving different features to different users.
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* Rolling out a new feature incrementally.
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* Switching between development and production environments.
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## Credits
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* [Martin Fowler 29 October 2010 (2010-10-29).](http://martinfowler.com/bliki/FeatureToggle.html)
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