DBMemento.h File Reference

Concrete memento for BlockAccessor snapshots. More...

#include <stack>
#include <memory>
#include "IDBMemento.h"
#include "BlockAccessor.h"

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Classes
class	DBMemento
	Stack-based implementation of IDBMemento for BlockAccessor. More...

Detailed Description

Concrete memento for BlockAccessor snapshots.

This header defines DBMemento, a stack-based implementation of the IDBMemento interface. It stores successive copies of BlockAccessor instances, allowing the system to:

• save intermediate states (takeSnapshot),
• roll back a configurable number of steps (restore),
• introspect snapshots for debugging (print_snapshot_content).

Definition in file DBMemento.h.