org.eclipse.gef4.mvc.operations

Interface ITransactionalOperation

All Superinterfaces:

IUndoableOperation

All Known Implementing Classes:

AbstractCompositeOperation, AddContentChildOperation, AttachToContentAnchorageOperation, ChangeContentsOperation, ChangeFocusOperation, ChangeHoverOperation, ChangeSelectionOperation, ClearHoverFocusSelectionOperation, DetachFromContentAnchorageOperation, ForwardUndoCompositeOperation, FXBendOperation, FXChangeViewportOperation, FXResizeNodeOperation, FXRevealOperation, FXTransformOperation, ITransactional.NoOperation, ITransactional.UnexecutableOperation, RemoveContentChildOperation, ReverseUndoCompositeOperation, SetPropertyValueOperation, SetRefreshVisualOperation, SynchronizeContentAnchoragesOperation, SynchronizeContentChildrenOperation

public interface ITransactionalOperation
extends IUndoableOperation

The ITransactionalOperation interface is an extension to IUndoableOperation. It specified a isNoOp() method that can be used to determine if an operation has an effect. If an operation does not have an effect, there is no need to execute it (on the operation history).

Method Summary

Modifier and Type	Method and Description
boolean	isNoOp() Returns true if this ITransactionalOperation has no effect.

Methods inherited from interface org.eclipse.core.commands.operations.IUndoableOperation

addContext, canExecute, canRedo, canUndo, dispose, execute, getContexts, getLabel, hasContext, redo, removeContext, undo

Method Detail

isNoOp

boolean isNoOp()

Returns true if this ITransactionalOperation has no effect. Otherwise returns false.

Returns:

true if this ITransactionalOperation has no effect, otherwise false.