org.apache.derby.iapi.store.raw
Interface Compensation
- All Superinterfaces:
- java.io.Externalizable, Formatable, Loggable, java.io.Serializable, TypedFormat
- All Known Implementing Classes:
- ContainerUndoOperation, LogicalUndoOperation, PhysicalUndoOperation
- public interface Compensation
- extends Loggable
A Compensation operation can compensate for the action of a log operation.
A Compensation operation itself is not undo-able, i.e., it is loggable but
not undoable.
A Compensation operation is generated by the logging system when it calls
undoable.generateUndo(). GenerateUndo should be the only way a
compensation operation can be made.
- See Also:
Undoable.generateUndo(org.apache.derby.iapi.store.raw.Transaction, org.apache.derby.iapi.services.io.LimitObjectInput)
Method Summary |
void |
setUndoOp(Undoable op)
Set up the undoable operation during recovery redo. |
Methods inherited from interface java.io.Externalizable |
readExternal, writeExternal |
setUndoOp
public void setUndoOp(Undoable op)
- Set up the undoable operation during recovery redo.
- Parameters:
op
- the Undoable operation- See Also:
Loggable.needsRedo(org.apache.derby.iapi.store.raw.Transaction)
Apache Derby V10.0 Engine Documentation - Copyright © 1997,2004 The Apache Software Foundation or its licensors, as applicable.