net.sf.joafip.btreeplus.entity

Interface IDataBlock

All Known Implementing Classes:

DataBlock

public interface IDataBlock

Author:

luc peuvrier

Method Summary

Methods

Modifier and Type	Method and Description
byte	getBits()
byte[]	getData()
int	getIndexInDataBlockPage()
int	getIndexInLeafPage()
int	getMaxDataSize()
int	getMinDataSize()
long	getNextFreeDataBlockPositionOfFree() make sense to be call only if this is a free data block
LeafPage	getParentLeafPage()
long	getPositionInFile()
void	setData(byte[] data)
void	setNextFreeDataBlockPositionOfFree(long nextFreeDataBlockPosition) the next free data block position is wrote on data, must be call only if this is a free data block
void	setParent(LeafPage parentLeafPage, int indexInLeafPage)

Method Detail

getPositionInFile

long getPositionInFile()

setData

void setData(byte[] data)
             throws HeapException

Throws:

HeapException

getData

byte[] getData()
               throws HeapException

Throws:

HeapException

setNextFreeDataBlockPositionOfFree

void setNextFreeDataBlockPositionOfFree(long nextFreeDataBlockPosition)
                                        throws HeapException

the next free data block position is wrote on data, must be call only if this is a free data block

Parameters:

nextFreeDataBlockPosition -

Throws:

HeapException

getNextFreeDataBlockPositionOfFree

long getNextFreeDataBlockPositionOfFree()
                                        throws HeapException

make sense to be call only if this is a free data block

Returns:

next free data block position

Throws:

HeapException

getMinDataSize

int getMinDataSize()

getMaxDataSize

int getMaxDataSize()

getBits

byte getBits()

getIndexInDataBlockPage

int getIndexInDataBlockPage()

setParent

void setParent(LeafPage parentLeafPage,
             int indexInLeafPage)

getParentLeafPage

LeafPage getParentLeafPage()

getIndexInLeafPage

int getIndexInLeafPage()