InvalidatePageOperation (Apache Derby V10.14 Internals)

java.lang.Object
- org.apache.derby.impl.store.raw.data.PageBasicOperation
- - org.apache.derby.impl.store.raw.data.PhysicalPageOperation
  - - org.apache.derby.impl.store.raw.data.InvalidatePageOperation

All Implemented Interfaces:: java.io.Externalizable, java.io.Serializable, Formatable, TypedFormat, Loggable, RePreparable, Undoable

public final class InvalidatePageOperation
extends PhysicalPageOperation

Represents invalidating a page due to deallocation. This operation invalidates the page that is being deallocated, as opposed to deallocatePage that happens on the alloc page.

See Also:: Serialized Form

Field Summary
- Fields inherited from interface org.apache.derby.iapi.store.raw.Loggable
  ABORT, BI_LOG, CHECKSUM, COMMIT, COMPENSATION, FILE_RESOURCE, FIRST, LAST, PREPARE, RAWSTORE, XA_NEEDLOCK
- Fields inherited from class org.apache.derby.impl.store.raw.data.PageBasicOperation
  containerHdl, foundHere, page

Constructor Summary

Constructors
Constructor Description

InvalidatePageOperation()

InvalidatePageOperation(BasePage page)

Constructors
Constructor	Description
`InvalidatePageOperation()`
`InvalidatePageOperation(BasePage page)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`doMe(Transaction xact, LogInstant instant, LimitObjectInput in)`	Mark the page as being invalidated
`int`	`getTypeFormatId()`	Return my format identifier.
`void`	`readExternal(java.io.ObjectInput in)`	Read this in
`void`	`restoreMe(Transaction xact, BasePage undoPage, LogInstant CLRInstant, LimitObjectInput in)`	restore the before image of the page
`java.lang.String`	`toString()`
`void`	`undoMe(Transaction xact, BasePage undoPage, LogInstant CLRInstant, LimitObjectInput in)`	Mark the page as being valid
`void`	`writeExternal(java.io.ObjectOutput out)`

Methods inherited from interface org.apache.derby.iapi.store.raw.Loggable
getPreparedLog, group, needsRedo, releaseResource

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from class org.apache.derby.impl.store.raw.data.PageBasicOperation
findpage, getPage, getPageForRedoRecovery, getPageId, getPageVersion, getPreparedLog, group, needsRedo, reclaimPrepareLocks, releaseResource, resetPageNumber

Methods inherited from class org.apache.derby.impl.store.raw.data.PhysicalPageOperation
generateUndo

- Constructor Detail
  - InvalidatePageOperation
```
InvalidatePageOperation(BasePage page)
```
  - InvalidatePageOperation
```
public InvalidatePageOperation()
```
- 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 PageBasicOperation
    
    Throws:
    
    java.io.IOException
  - 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 being invalidated
    
    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)
  - undoMe
```
public void undoMe(Transaction xact,
                   BasePage undoPage,
                   LogInstant CLRInstant,
                   LimitObjectInput in)
            throws StandardException,
                   java.io.IOException
```
    Mark the page as being valid
    
    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

Format ID	LOGOP_INVALIDATE_PAGE the formatId is written by FormatIdOutputStream when this object is written out by writeObject
Purpose
invalidate a page
Upgrade

Disk Layout	PhysicalPageOperation the superclass OptionalData none

Class InvalidatePageOperation

Field Summary

Fields inherited from interface org.apache.derby.iapi.store.raw.Loggable

Fields inherited from class org.apache.derby.impl.store.raw.data.PageBasicOperation

Constructor Summary

Method Summary

Methods inherited from interface org.apache.derby.iapi.store.raw.Loggable

Methods inherited from class java.lang.Object

Methods inherited from class org.apache.derby.impl.store.raw.data.PageBasicOperation

Methods inherited from class org.apache.derby.impl.store.raw.data.PhysicalPageOperation

Constructor Detail

InvalidatePageOperation

InvalidatePageOperation

Method Detail

writeExternal

readExternal

getTypeFormatId

doMe

undoMe

restoreMe

toString