com.bbn.openmap.event
Interface UndoEvent

All Known Implementing Classes:

EditableOMGraphic.OMGraphicUndoEvent, EditableOMPoly.OMPolyUndoEvent, EditableOMRangeRings.OMRangeRingUndoEvent

public interface UndoEvent

An UndoEvent is an object that contains everything needed to reset its source back to a specific state. Used by the UndoStack. This event is used by the UndoStack to tell other objects to undo/redo - go to a certain state. The events that tell the UndoStack to make these notifications are regular ActionEvents, not these.

Author:

ddietrick

Method Summary

java.lang.String	getDescription()
void	setState() Tell the UndoEvent to set its source object back to the state described by this object.

Method Detail

getDescription

java.lang.String getDescription()

Returns:

a short description of what will happen when setState() is invoked.

setState

void setState()

Tell the UndoEvent to set its source object back to the state described by this object.