Field Detail

• undoOp

  private transient ContainerOperation undoOp

Constructor Detail

• ContainerUndoOperation

  public ContainerUndoOperation​(RawContainerHandle hdl,
                                ContainerOperation op)
                         throws StandardException

  Set up a Container undo operation during run time rollback

  Throws:

  StandardException - container Handle is not active

• ContainerUndoOperation

  public ContainerUndoOperation()

Method Detail

• writeExternal

  public void writeExternal​(java.io.ObjectOutput out)
                     throws java.io.IOException

  Specified by:

  writeExternal in interface java.io.Externalizable

  Overrides:

  writeExternal in class ContainerBasicOperation

  Throws:

  java.io.IOException

• readExternal

  public void readExternal​(java.io.ObjectInput in)
                    throws java.io.IOException,
                           java.lang.ClassNotFoundException

  Specified by:

  readExternal in interface java.io.Externalizable

  Overrides:

  readExternal in class ContainerBasicOperation

  Throws:

  java.io.IOException - cannot read log record from log stream

  java.lang.ClassNotFoundException - cannot read ByteArray object

• getTypeFormatId

  public int getTypeFormatId()

  Return my format identifier.

  Specified by:

  getTypeFormatId in interface TypedFormat

  Returns:

  The identifier. (A UUID stuffed in an array of 16 bytes).

• setUndoOp

  public void setUndoOp​(Undoable op)

  Set up a Container undo operation during recovery redo.

  Specified by:

  setUndoOp in interface Compensation

  Parameters:

  op - the Undoable operation

  See Also:

  Loggable.needsRedo(org.apache.derby.iapi.store.raw.Transaction)

• doMe

  public final void doMe​(Transaction xact,
                         LogInstant instant,
                         LimitObjectInput in)
                  throws StandardException,
                         java.io.IOException

  Apply the undo operation, in this implementation of the RawStore, it can only call the undoMe method of undoOp

  Specified by:

  doMe in interface Loggable

  Parameters:

  xact - the Transaction that is doing the rollback

  instant - the log instant of this compenstaion operation

  in - optional data

  Throws:

  java.io.IOException - Can be thrown by any of the methods of ObjectInput.

  StandardException - Standard Derby error policy.

  See Also:

  ContainerOperation.generateUndo(org.apache.derby.iapi.store.raw.Transaction, org.apache.derby.iapi.services.io.LimitObjectInput)

• releaseResource

  public void releaseResource​(Transaction xact)

  Description copied from interface: Loggable
  Release any resource that was acquired for doMe for rollback or recovery redo. This resource is acquired in either generateUndo (if this is a compensation operation during run time rollback or recovery rollback) or in needsRedo (if this is during recovery redo). The run time transaction context should have all the resource already acquird for run time roll forward, so there is no need to releaseResource during run time roll forward. This method must be safe to be called multiple times.

  Specified by:

  releaseResource in interface Loggable

  Overrides:

  releaseResource in class ContainerBasicOperation

• group

  public int group()

  Description copied from class: ContainerBasicOperation
  A space operation is a RAWSTORE log record

  Specified by:

  group in interface Loggable

  Overrides:

  group in class ContainerBasicOperation