Java Doc for CopyRowsOperation.java in  » Database-DBMS » db-derby-10.2 » org » apache » derby » impl » store » raw » data » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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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.CopyRowsOperation

CopyRowsOperation
public class CopyRowsOperation extends PhysicalPageOperation (Code)
Represents copying num_rows from one page to another page.


Field Summary
protected  intdestSlot
    
protected  intnum_rows
    
protected transient  ByteArraypreparedLog
    
protected  int[]recordIds
    
protected  int[]reservedSpace
    

Constructor Summary
public  CopyRowsOperation(RawTransaction t, BasePage destPage, BasePage srcPage, int destSlot, int num_rows, int srcSlot, int[] recordIds)
    
public  CopyRowsOperation()
    

Method Summary
public  voiddoMe(Transaction xact, LogInstant instant, LimitObjectInput in)
    
public  ByteArraygetPreparedLog()
    
public  intgetTypeFormatId()
     Return my format identifier.
public  voidreadExternal(ObjectInput in)
    
public  voidrestoreMe(Transaction xact, BasePage undoPage, LogInstant CLRInstant, LimitObjectInput in)
    
public  StringtoString()
     DEBUG: Print self.
public  voidundoMe(Transaction xact, BasePage undoPage, LogInstant CLRInstant, LimitObjectInput in)
     to undo this operation, purge all records that were copied over.
public  voidwriteExternal(ObjectOutput out)
    

Field Detail
destSlot
protected int destSlot(Code)



num_rows
protected int num_rows(Code)



preparedLog
protected transient ByteArray preparedLog(Code)



recordIds
protected int[] recordIds(Code)



reservedSpace
protected int[] reservedSpace(Code)




Constructor Detail
CopyRowsOperation
public CopyRowsOperation(RawTransaction t, BasePage destPage, BasePage srcPage, int destSlot, int num_rows, int srcSlot, int[] recordIds) throws StandardException(Code)



CopyRowsOperation
public CopyRowsOperation()(Code)




Method Detail
doMe
public void doMe(Transaction xact, LogInstant instant, LimitObjectInput in) throws StandardException, IOException(Code)

exception:
  IOException - Can be thrown by any of the methods of ObjectInput.
exception:
  StandardException - Standard Cloudscape policy.
See Also:   org.apache.derby.iapi.store.raw.Loggable.doMe



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:
  IOException - problem reading the complete log record from the input stream
exception:
  StandardException - Standard Cloudscape Error Policy



toString
public String toString()(Code)
DEBUG: Print self.



undoMe
public void undoMe(Transaction xact, BasePage undoPage, LogInstant CLRInstant, LimitObjectInput in) throws StandardException, IOException(Code)
to undo this operation, purge all records that were copied over.
exception:
  IOException - Can be thrown by any of the methods of ObjectInput.
exception:
  StandardException - Standard Cloudscape error policy
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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