net.sf.joafip.btreeplus.entity

Class PageRecord

java.lang.Object

net.sf.joafip.kvstore.entity.AbstractFileStorable

net.sf.joafip.btreeplus.entity.AbstractPageRecord

net.sf.joafip.btreeplus.entity.PageRecord

All Implemented Interfaces:

IPageRecord, IFileStorable

@NotStorableClass
public class PageRecord
extends AbstractPageRecord
implements IPageRecord

Author:

luc peuvrier

Field Summary

Fields inherited from class net.sf.joafip.btreeplus.entity.AbstractPageRecord

heapElementManager

Fields inherited from class net.sf.joafip.kvstore.entity.AbstractFileStorable

fileForStorable, justCreated, logger, numberOfByteReadWrote, positionInFile, valueChangedToSave

Constructor Summary

Constructors

Constructor and Description
PageRecord(IHeapElementManager heapElementManager, long pageNumber) creation for reading
PageRecord(IHeapElementManager heapElementManager, Long previousRecordPositionInFile, IPageRecordable pageRecordable, long pageNumber)

Method Summary

Methods

Modifier and Type	Method and Description
int	getNumberOfPage()
long	getPageNumber()
IPageRecordable	getPageRecordable()
long	getPreviousRecordPositionInFile()
int	getRecordSize() get the record size
EnumRecordType	getRecordType()
protected void	marshallImpl() marshaling implementation for write #crc32 is set to zero
void	setPageRecordable(IPageRecordable pageRecordable)
void	setPreviousRecordPositionInFile(long previousRecordPositionInFile)
protected int	toMarshallSize()
String	toString()
protected void	unmarshallImpl() Unmarshalling implementation for read #crc32 is set to zero
protected void	valueChangedAction()

Methods inherited from class net.sf.joafip.btreeplus.entity.AbstractPageRecord

readKey, readRecordType, writeByteRecordType, writeKey

Methods inherited from class net.sf.joafip.kvstore.entity.AbstractFileStorable

clear, equals, getPositionInFile, hashCode, isJustCreated, isValueChangedToSave, readAndCheckCrc32, readBoolean, readByte, readBytes, readBytes, readFileAppendToIoBuffer, readFileToIoBuffer, readFromFile, readInteger, readLong, setValueIsChangedValueToSave, setValueIsNotChanged, writeBoolean, writeByte, writeBytes, writeCrc32, writeInteger, writeLong, writeToFile, writeToFileGetWrited

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface net.sf.joafip.btreeplus.entity.IPageRecord

getPositionInFile, isValueChangedToSave, setValueIsChangedValueToSave, setValueIsNotChanged

Methods inherited from interface net.sf.joafip.kvstore.entity.IFileStorable

clear, isJustCreated, readFromFile, writeToFile, writeToFileGetWrited

Constructor Detail

PageRecord

public PageRecord(IHeapElementManager heapElementManager,
          long pageNumber)

creation for reading

Parameters:

heapElementManager -

pageNumber -

PageRecord

public PageRecord(IHeapElementManager heapElementManager,
          Long previousRecordPositionInFile,
          IPageRecordable pageRecordable,
          long pageNumber)

Method Detail

setPageRecordable

public void setPageRecordable(IPageRecordable pageRecordable)
                       throws HeapException

Specified by:

setPageRecordable in interface IPageRecord

Throws:

HeapException

valueChangedAction

protected void valueChangedAction()
                           throws HeapException

Specified by:

valueChangedAction in class AbstractFileStorable

Throws:

HeapException

getRecordType

public EnumRecordType getRecordType()

getPageNumber

public long getPageNumber()

Specified by:

getPageNumber in interface IPageRecord

getPageRecordable

public IPageRecordable getPageRecordable()

getNumberOfPage

public int getNumberOfPage()

Specified by:

getNumberOfPage in interface IPageRecord

getPreviousRecordPositionInFile

public long getPreviousRecordPositionInFile()
                                     throws HeapException

Specified by:

getPreviousRecordPositionInFile in interface IFileStorable

Returns:

previous record position in file, -1 if no previous record (this is the first)

Throws:

HeapException

setPreviousRecordPositionInFile

public void setPreviousRecordPositionInFile(long previousRecordPositionInFile)
                                     throws HeapException

Throws:

HeapException

getRecordSize

public int getRecordSize()
                  throws HeapException

Description copied from interface: IFileStorable

get the record size

Specified by:

getRecordSize in interface IFileStorable

Returns:

the record size

Throws:

HeapException

toMarshallSize

protected int toMarshallSize()
                      throws HeapException

Specified by:

toMarshallSize in class AbstractFileStorable

Returns:

number of byte to marshal

Throws:

HeapException

marshallImpl

protected void marshallImpl()
                     throws HeapException

Description copied from class: AbstractFileStorable

marshaling implementation for write
#crc32 is set to zero

Specified by:

marshallImpl in class AbstractFileStorable

Throws:

HeapException

unmarshallImpl

protected void unmarshallImpl()
                       throws HeapException

Description copied from class: AbstractFileStorable

Unmarshalling implementation for read
#crc32 is set to zero

Specified by:

unmarshallImpl in class AbstractFileStorable

Throws:

HeapException

toString

public String toString()

Overrides:

toString in class AbstractFileStorable