net.sf.staccatocommons.restrictions
Annotation Type Constant

@Documented
@Restriction
@Target(value=METHOD)
@Retention(value=CLASS)
public @interface Constant

Restriction that denotes that the return value of a method is always the same object. This does not necessary mean that the returned object is a singleton.

Although theoretically a method may be constant and still not Transparent - because of not being SideEffectFree, in practice this is a bug source. Thus, Constant annotated methods must be Transparent, and they do not need to be annotated with that annotation too, as it is implied.

Constant methods must be not null, thus they do not need to be annotated as NonNull, as it is implied

Author:

flbulgarelli