| layout | pattern |
|---|---|
| title | Dirty Flag |
| folder | dirty-flag |
| permalink | /patterns/dirty-flag/ |
| categories | Other |
| tags |
To avoid expensive re-acquisition of resources. The resources retain their identity, are kept in some fast-access storage, and are re-used to avoid having to acquire them again.
Use the Dirty Flag pattern when
- Repetitious acquisition, initialization, and release of the same resource causes unnecessary performance overhead.