package mage.abilities;
/**
* Marker class for singleton abilities and effects.
* Prevents effects and abilities to get new Id across the games on the server.
* Can be used only for stateless effects and abilities. (e.g. no Duration)
*
* Intended to be used to avoid bugs and for performance reasons.
*
* "Must" be used for abilities that use getId() as compare parameter like:
* FlyingAbility.getInstance().getId()
* in
* permanent.getAbilities().containsKey(FlyingAbility.getInstance().getId())
*
*
* @author noxx
*/
public interface MageSingleton {
}