# Package org.eclipse.emf.compare.command

Interface Summary
ICompareCommandStack: An extended `command stack` that knows about each save state of the comparison.
ICompareCopyCommand: Interface of compare copy (merge) command.

Class Summary
CommandStackEvent: An event that can be passed to `CommandStackListener.commandStackChanged(EventObject)`.
DelegatingCommandStack: Abstract implementation that forward method calls to a `delegatating` `CommandStack`.

Enum Summary
CommandStackEvent.Operation: An event type.