1fdc650545
* Reduces checkstyle errors in marker * Reduces checkstyle errors in master-worker-pattern * Reduces checkstyle errors in mediator * Reduces checkstyle errors in memento * Reduces checkstyle errors in model-view-controller * Reduces checkstyle errors in model-view-presenter * Reduces checkstyle errors in module * Reduces checkstyle errors in monad * Reduces checkstyle errors in monostate * Reduces checkstyle errors in multiton * Reduces checkstyle errors in mute-idiom * Reduces checkstyle errors in mutex
layout, title, folder, permalink, categories, tags
| layout | title | folder | permalink | categories | tags | ||
|---|---|---|---|---|---|---|---|
| pattern | Marker Interface | marker | /patterns/marker/ | Other |
|
Intent
Using empty interfaces as markers to distinguish special treated objects.
Applicability
Use the Marker Interface pattern when
- you want to identify the special objects from normal objects (to treat them differently)
- you want to mark that some object is available for certain sort of operations