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java-design-patterns/feature-toggle/README.md
JackieNim f597fc1b07
fix: Fixed pages showing up in wrong language (#1752) 
* Fix languages

* Missed change for version number

* Add language field for presentation

* Revert change in README for double buffer

Co-authored-by: Jackie Nim <=>
2021-05-19 19:49:05 +03:00

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pattern Feature Toggle feature-toggle /patterns/feature-toggle/ Behavioral en
Extensibility

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

alt text

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