org.eclipse.emf.transaction.util
Interface ConditionalRedoCommand

All Superinterfaces:

Command

All Known Implementing Classes:

ConditionalRedoCommand.Compound, RecordingCommand, TriggerCommand

public interface ConditionalRedoCommand
extends Command

A specialization of the EMF Command API that accounts for conditional redoable-ness. This interface adds a canRedo() operation in conjunction with the Command.canUndo().

This interface is intended to be implemented by clients.

Nested Class Summary

static class

ConditionalRedoCommand.Compound A conditionally redoable compound command.

Method Summary

boolean

canRedo() Queries whether I can be redone.

Methods inherited from interface org.eclipse.emf.common.command.Command

canExecute, canUndo, chain, dispose, execute, getAffectedObjects, getDescription, getLabel, getResult, redo, undo

Method Detail

canRedo

boolean canRedo()

Queries whether I can be redone. The result of calling this operation is undefined until I have been undone. Note that it is acceptable for a conditionally redoable command not to be redoable if it has successfully been undone, or even after having been successfully redone at least once before.

Returns:

true if I can be redone; false, otherwise