ICustomAbortableUndoRedoPattern

All Superinterfaces:

ICustomUndoRedoPattern
```
public interface ICustomAbortableUndoRedoPattern
extends ICustomUndoRedoPattern
```
This interface can by used and implemented by customers within any pattern to signal the need for additional work that needs to be done before or after undo and redo. In addition to ICustomUndoRedoPattern this interface supports cancellation of undo/redo operations.

Since:

0.12

See Also:

ICustomUndoRedoPattern

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`isAbort()`	The Graphiti framework will call this method after `#preUndo(org.eclipse.graphiti.features.context.IContext)`/ `#preRedo(org.eclipse.graphiti.features.context.IContext)` have been called and before the actual undo/redo operation is triggered.

Methods inherited from interface org.eclipse.graphiti.pattern.ICustomUndoRedoPattern
canRedo, canUndo, postRedo, postUndo, preRedo, preUndo

- Method Detail
  - isAbort
```
boolean isAbort()
```
    The Graphiti framework will call this method after #preUndo(org.eclipse.graphiti.features.context.IContext)/ #preRedo(org.eclipse.graphiti.features.context.IContext) have been called and before the actual undo/redo operation is triggered. In case this method returns true, the operation will be cancelled by the Graphiti framework by throwing an OperationCanceledException that causes am EMF revert of the operation.
    Implementing classes might e.g. set a flag in #preUndo(org.eclipse.graphiti.features.context.IContext)/ #preRedo(org.eclipse.graphiti.features.context.IContext) as cancellation indication and check that that flag here.
    
    Returns:
    
    true in case you want to cancel the current operation, false otherwise.