java-design-patterns/feature-toggle/README.md at 2f71c41af02be1f17ec18f2ecb87cd29e9d0f9ca

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Ilkka Seppälä 4108f86177 docs: Prepare for new website launch (#2149 )

* 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>

2022-10-23 16:29:49 +03:00

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title

Also known as

Feature Flag

Intent

Used to switch code execution paths based on properties or groupings. Allowing new features to be released, tested and rolled out. Allowing switching back to the older feature quickly if needed. It should be noted that this pattern, can easily introduce code complexity. There is also cause for concern that the old feature that the toggle is eventually going to phase out is never removed, causing redundant code smells and increased maintainability.

Class diagram

Applicability

Use the Feature Toggle pattern when

Giving different features to different users.
Rolling out a new feature incrementally.
Switching between development and production environments.

Credits

Martin Fowler 29 October 2010 (2010-10-29).

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