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Java Source Code / Java Documentation » Database DBMS » db derby 10.2 » org.apache.derby.impl.store.raw.data 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


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.UpdateOperation

UpdateOperation
final public class UpdateOperation extends PhysicalPageOperation (Code)
Represents the update of a particular row on a page.


Field Summary
protected  intdoMeSlot
    
protected transient  intnextColumn
    
protected transient  ByteArraypreparedLog
    
protected  intrecordId
    

Constructor Summary
public  UpdateOperation(RawTransaction t, BasePage page, int slot, int recordId, Object[] row, FormatableBitSet validColumns, int realStartColumn, DynamicByteArrayOutputStream logBuffer, int realSpaceOnPage, RecordHandle headRowHandle)
    
public  UpdateOperation()
    

Method Summary
public  voiddoMe(Transaction xact, LogInstant instant, LimitObjectInput in)
     Store the new record directly over the old record, the implementation of storeRecord is responsible for removing any old data.
public  intgetNextStartColumn()
    
public  ByteArraygetPreparedLog()
    
public  intgetTypeFormatId()
     Return my format identifier.
public  voidreadExternal(ObjectInput in)
    
public  voidrestoreMe(Transaction xact, BasePage undoPage, LogInstant CLRInstant, LimitObjectInput in)
    
public  StringtoString()
    
public  voidundoMe(Transaction xact, BasePage undoPage, LogInstant CLRInstant, LimitObjectInput in)
     Store the old record directly over the new record, the implementation of storeRecord is responsible for removing any new data.
public  voidwriteExternal(ObjectOutput out)
    

Field Detail
doMeSlot
protected int doMeSlot(Code)



nextColumn
protected transient int nextColumn(Code)



preparedLog
protected transient ByteArray preparedLog(Code)



recordId
protected int recordId(Code)




Constructor Detail
UpdateOperation
public UpdateOperation(RawTransaction t, BasePage page, int slot, int recordId, Object[] row, FormatableBitSet validColumns, int realStartColumn, DynamicByteArrayOutputStream logBuffer, int realSpaceOnPage, RecordHandle headRowHandle) throws StandardException(Code)



UpdateOperation
public UpdateOperation()(Code)




Method Detail
doMe
public void doMe(Transaction xact, LogInstant instant, LimitObjectInput in) throws StandardException, IOException(Code)
Store the new record directly over the old record, the implementation of storeRecord is responsible for removing any old data.
exception:
  StandardException - Thrown by methods I call
exception:
  IOException - Thrown by methods I call
See Also:   BasePage.storeRecord
See Also:   org.apache.derby.iapi.store.raw.Loggable.doMe



getNextStartColumn
public int getNextStartColumn()(Code)
Return the last column of the row this operation logged



getPreparedLog
public ByteArray getPreparedLog()(Code)



getTypeFormatId
public int getTypeFormatId()(Code)
Return my format identifier.



readExternal
public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException(Code)
Read this in
exception:
  IOException - error reading from log stream
exception:
  ClassNotFoundException - log stream corrupted



restoreMe
public void restoreMe(Transaction xact, BasePage undoPage, LogInstant CLRInstant, LimitObjectInput in) throws StandardException, IOException(Code)
restore the before image of the page
exception:
  StandardException - Standard Cloudscape Error Policy
exception:
  IOException - problem reading the complete log record from theinput stream



toString
public String toString()(Code)



undoMe
public void undoMe(Transaction xact, BasePage undoPage, LogInstant CLRInstant, LimitObjectInput in) throws StandardException, IOException(Code)
Store the old record directly over the new record, the implementation of storeRecord is responsible for removing any new data.
exception:
  StandardException - Thrown by methods I call
exception:
  IOException - Thrown by methods I call
See Also:   BasePage.storeRecord
See Also:   PhysicalPageOperation.undoMe



writeExternal
public void writeExternal(ObjectOutput out) throws IOException(Code)



Methods inherited from org.apache.derby.impl.store.raw.data.PhysicalPageOperation
public Compensation generateUndo(Transaction xact, LimitObjectInput in) throws StandardException(Code)(Java Doc)
abstract public void undoMe(Transaction xact, BasePage undoPage, LogInstant CLRinstant, LimitObjectInput in) throws StandardException, IOException(Code)(Java Doc)

Fields inherited from org.apache.derby.impl.store.raw.data.PageBasicOperation
protected transient RawContainerHandle containerHdl(Code)(Java Doc)
protected transient boolean foundHere(Code)(Java Doc)
protected transient BasePage page(Code)(Java Doc)

Methods inherited from org.apache.derby.impl.store.raw.data.PageBasicOperation
final public BasePage findpage(Transaction xact) throws StandardException(Code)(Java Doc)
final public Page getPage()(Code)(Java Doc)
protected BasePage getPageForRedoRecovery(Transaction xact) throws StandardException(Code)(Java Doc)
final protected PageKey getPageId()(Code)(Java Doc)
final public long getPageVersion()(Code)(Java Doc)
public ByteArray getPreparedLog() throws StandardException(Code)(Java Doc)
public int group()(Code)(Java Doc)
final public boolean needsRedo(Transaction xact) throws StandardException(Code)(Java Doc)
public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException(Code)(Java Doc)
public void reclaimPrepareLocks(Transaction t, LockingPolicy locking_policy) throws StandardException(Code)(Java Doc)
public void releaseResource(Transaction xact)(Code)(Java Doc)
final protected void resetPageNumber(long pageNumber)(Code)(Java Doc)
abstract public void restoreMe(Transaction xact, BasePage undoPage, LogInstant CLRinstant, LimitObjectInput in) throws StandardException, IOException(Code)(Java Doc)
public String toString()(Code)(Java Doc)
public void writeExternal(ObjectOutput out) throws IOException(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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