- All Known Implementing Classes:
- MutableIntegerRestorer
public interface ClosedMemento
this is a self-contained memento that remembers which object to restore,
and where to restore it into (e.g. a container).
This differs from a normal Memento in that it requires nothing from the
caller except of being called at the right times.
Normally, implementors keep a reference to the original object, and copy
the field values which have to be restored.