Field Detail

• nextRecordId

  protected int nextRecordId

• initFlag

  protected int initFlag

• pageFormatId

  protected int pageFormatId

• pageOffset

  protected long pageOffset

• reuse

  protected boolean reuse

• overflowPage

  protected boolean overflowPage

Constructor Detail

• InitPageOperation

  InitPageOperation​(BasePage page,
                    int flag,
                    int formatid,
                    long offset)
             throws StandardException

  Throws:

  StandardException

• InitPageOperation

  public InitPageOperation()

Method Detail

• writeExternal

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

  Write this out.

  Specified by:

  writeExternal in interface java.io.Externalizable

  Overrides:

  writeExternal in class PageBasicOperation

  Throws:

  java.io.IOException - error writing to log stream

• readExternal

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

  Read this in

  Specified by:

  readExternal in interface java.io.Externalizable

  Overrides:

  readExternal in class PageBasicOperation

  Throws:

  java.io.IOException - error reading from log stream

  java.lang.ClassNotFoundException - log stream corrupted

• getTypeFormatId

  public int getTypeFormatId()

  Return my format identifier.

  Returns:

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

• doMe

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

  Mark the page as valid, and clear out any crud from the page

  Parameters:

  xact - the Transaction

  instant - the log instant of this operation

  in - optional data

  Throws:

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

  StandardException - Standard Derby policy.

  See Also:

  Loggable.doMe(org.apache.derby.iapi.store.raw.Transaction, org.apache.derby.iapi.store.raw.log.LogInstant, org.apache.derby.iapi.services.io.LimitObjectInput)

• getPageForRedoRecovery

  protected BasePage getPageForRedoRecovery​(Transaction xact)
                                     throws StandardException

  If we are in load tran, this page may not exist for the container yet. We need to create it first. This routine is called as the last resort of find page, the container handle has already been found and it is not dropped.

  Overrides:

  getPageForRedoRecovery in class PageBasicOperation

  Throws:

  StandardException - Standard Derby policy.

• undoMe

  public void undoMe​(Transaction xact,
                     BasePage undoPage,
                     LogInstant CLRInstant,
                     LimitObjectInput in)
              throws StandardException,
                     java.io.IOException

  Mark the page as free

  Specified by:

  undoMe in class PhysicalPageOperation

  Parameters:

  xact - the Transaction doing the rollback

  undoPage - the page to rollback changes on

  CLRInstant - the log instant of this (PageUndo) operation

  in - optional data for the rollback operation

  Throws:

  StandardException - Thrown by methods I call

  java.io.IOException - Thrown by methods I call

  See Also:

  PhysicalPageOperation.undoMe(org.apache.derby.iapi.store.raw.Transaction, org.apache.derby.impl.store.raw.data.BasePage, org.apache.derby.iapi.store.raw.log.LogInstant, org.apache.derby.iapi.services.io.LimitObjectInput)

• restoreMe

  public void restoreMe​(Transaction xact,
                        BasePage undoPage,
                        LogInstant CLRInstant,
                        LimitObjectInput in)
                 throws StandardException,
                        java.io.IOException

  restore the before image of the page

  Specified by:

  restoreMe in class PageBasicOperation

  Parameters:

  xact - the Transaction doing the rollback

  undoPage - the page to rollback changes on

  CLRInstant - the log instant of this (PageUndo) operation

  in - optional data for the rollback operation

  Throws:

  StandardException - Standard Derby Error Policy

  java.io.IOException - problem reading the complete log record from the input stream

• toString

  public java.lang.String toString()

  Overrides:

  toString in class PageBasicOperation