net.sf.joafip.btreeplus.service

Class BtreePlusElementMgr

java.lang.Object

net.sf.joafip.btreeplus.service.BtreePlusElementMgr

All Implemented Interfaces:

IHeapRecordFactory

@NotStorableClass
public class BtreePlusElementMgr
extends Object
implements IHeapRecordFactory

Author:

luc peuvrier

Constructor Summary

Constructors

Constructor and Description
BtreePlusElementMgr(IHeapElementManager heapElementManager)

Method Summary

Methods

Modifier and Type	Method and Description
void	appendPageRecordable(IPageRecordable pageRecordable)
String	backup(long identifier, int maxBackup)
void	clear()
void	clearReadCache()
void	closeTransaction()
void	closeTransactionDiscardChange()
IDataBlock	createDataBlock(byte[] data)
IFileStorable	createHeapRecord(IHeapElementManager heapElementManager, long positionInFile) creation for reading
void	decrementNumberOfDataRecord()
void	freePage(IPageRecord pageRecord)
long	freeSize()
byte[]	getData(long dataBlockPosition)
IDataBlock	getDataBlock(long dataBlockPosition)
IFileForStorable	getFileForStorable()
long	getFirstLeafPagePosition()
long	getLastRecordPositionInFile()
long	getNewDataRecordIdentifier()
long	getNextFreeDataRecordIdentifier()
int	getNumberOfDataRecord()
int	getNumberOfFreeRecord()
IPageRecordable	getPage(long position, IPageRecordable parentPage, int index)
IPageRecordable	getRoot()
long	heapSize()
void	incrementNumberOfDataRecord()
boolean	isDataLost()
boolean	isTransactionOpened()
void	newRootLeafPage(DataRecordIdentifier dataRecordIdentifier, IDataBlock dataBlock)
void	newRootNonTerminalPage(INonTerminalPage leftNonTerminalPage, DataRecordIdentifier middleKey, INonTerminalPage rightNonTerminalPage)
void	newRootNonTerminalPage(LeafPage leftLeafPage, LeafPage rightLeafPage)
void	openTransaction()
void	remove(IDataBlock dataBlock)
void	removeFiles()
void	removeRoot()
void	setDataRecordKeyManager(IDataRecordKeyManager dataRecordKeyManager)
void	setNextFreeDataRecordIdentifier(long value)
void	startService()
void	stopService()
long	usedSize()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BtreePlusElementMgr

public BtreePlusElementMgr(IHeapElementManager heapElementManager)
                    throws HeapException

Throws:

HeapException

Method Detail

setDataRecordKeyManager

public void setDataRecordKeyManager(IDataRecordKeyManager dataRecordKeyManager)
                             throws HeapException

Throws:

HeapException

startService

public void startService()
                  throws HeapException

Throws:

HeapException

stopService

public void stopService()
                 throws HeapException

Throws:

HeapException

openTransaction

public void openTransaction()
                     throws HeapException

Throws:

HeapException

closeTransaction

public void closeTransaction()
                      throws HeapException

Throws:

HeapException

isTransactionOpened

public boolean isTransactionOpened()

closeTransactionDiscardChange

public void closeTransactionDiscardChange()
                                   throws HeapException

Throws:

HeapException

clear

public void clear()
           throws HeapException

Throws:

HeapException

removeFiles

public void removeFiles()
                 throws HeapException

Throws:

HeapException

createHeapRecord

public IFileStorable createHeapRecord(IHeapElementManager heapElementManager,
                             long positionInFile)
                               throws HeapException

Description copied from interface: IHeapRecordFactory

creation for reading

Specified by:

createHeapRecord in interface IHeapRecordFactory

Returns:

Throws:

HeapException

isDataLost

public boolean isDataLost()

getFileForStorable

public IFileForStorable getFileForStorable()

heapSize

public long heapSize()
              throws HeapException

Throws:

HeapException

freeSize

public long freeSize()
              throws HeapException

Throws:

HeapException

usedSize

public long usedSize()
              throws HeapException

Throws:

HeapException

backup

public String backup(long identifier,
            int maxBackup)
              throws HeapException

Throws:

HeapException

getNextFreeDataRecordIdentifier

public long getNextFreeDataRecordIdentifier()

setNextFreeDataRecordIdentifier

public void setNextFreeDataRecordIdentifier(long value)
                                     throws HeapException

Throws:

HeapException

getNewDataRecordIdentifier

public long getNewDataRecordIdentifier()
                                throws HeapException

Throws:

HeapException

getRoot

public IPageRecordable getRoot()
                        throws HeapException

Returns:

root page or null if none (no data)

Throws:

HeapException

getPage

public IPageRecordable getPage(long position,
                      IPageRecordable parentPage,
                      int index)
                        throws HeapException

Throws:

HeapException

getData

public byte[] getData(long dataBlockPosition)
               throws HeapException

Parameters:

dataBlockPosition -

Returns:

data of data block at position

Throws:

HeapException

getDataBlock

public IDataBlock getDataBlock(long dataBlockPosition)
                        throws HeapException

Parameters:

dataBlockPosition -

Returns:

data block at position

Throws:

HeapException

newRootLeafPage

public void newRootLeafPage(DataRecordIdentifier dataRecordIdentifier,
                   IDataBlock dataBlock)
                     throws HeapException

Throws:

HeapException

newRootNonTerminalPage

public void newRootNonTerminalPage(LeafPage leftLeafPage,
                          LeafPage rightLeafPage)
                            throws HeapException

Throws:

HeapException

newRootNonTerminalPage

public void newRootNonTerminalPage(INonTerminalPage leftNonTerminalPage,
                          DataRecordIdentifier middleKey,
                          INonTerminalPage rightNonTerminalPage)
                            throws HeapException

Throws:

HeapException

createDataBlock

public IDataBlock createDataBlock(byte[] data)
                           throws HeapException

Throws:

HeapException

removeRoot

public void removeRoot()
                throws HeapException

Throws:

HeapException

remove

public void remove(IDataBlock dataBlock)
            throws HeapException

Throws:

HeapException

appendPageRecordable

public void appendPageRecordable(IPageRecordable pageRecordable)
                          throws HeapException

Throws:

HeapException

freePage

public void freePage(IPageRecord pageRecord)
              throws HeapException

Throws:

HeapException

getLastRecordPositionInFile

@Fortest
public long getLastRecordPositionInFile()
                                 throws HeapException

Throws:

HeapException

incrementNumberOfDataRecord

public void incrementNumberOfDataRecord()
                                 throws HeapException

Throws:

HeapException

decrementNumberOfDataRecord

public void decrementNumberOfDataRecord()
                                 throws HeapException

Throws:

HeapException

getNumberOfDataRecord

public int getNumberOfDataRecord()

getNumberOfFreeRecord

public int getNumberOfFreeRecord()
                          throws HeapException

Throws:

HeapException

clearReadCache

public void clearReadCache()

getFirstLeafPagePosition

public long getFirstLeafPagePosition()