nl.renarj.jasdb.index.btreeplus.persistence

Class BtreePlusBlockPersister

java.lang.Object

nl.renarj.jasdb.index.btreeplus.persistence.BtreePlusBlockPersister

All Implemented Interfaces:

MemoryAware, BlockPersister

public class BtreePlusBlockPersister
extends Object
implements BlockPersister

Author:

Renze de Vries

Constructor Summary

Constructors

Constructor and Description
BtreePlusBlockPersister(DataBlockFactory dataBlockFactory, int pageSize, KeyInfo keyInfo)

Method Summary

Modifier and Type	Method and Description
void	close()
IndexBlock	createBlock(BlockTypes blockType, long parentBlock)
void	flush()
void	flushAndCloseBlock(IndexBlock block)
long	getBlockSize(BlockTypes blockType)
long	getCachedBlocks()
DataBlockFactory	getDataBlockFactory()
KeyInfo	getKeyInfo()
LockManager	getLockManager()
int	getMaxKeys()
int	getMinKeys()
long	getTotalMemoryUsage()
IndexBlock	loadBlock(long position)
void	markDeleted(IndexBlock block)
void	persistBlock(IndexBlock block)
void	releaseBlock(IndexBlock block)

Methods inherited from class java.lang.Object

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

Constructor Detail

BtreePlusBlockPersister

public BtreePlusBlockPersister(DataBlockFactory dataBlockFactory,
                               int pageSize,
                               KeyInfo keyInfo)

Method Detail

getLockManager

public LockManager getLockManager()

Specified by:

getLockManager in interface BlockPersister

getDataBlockFactory

public DataBlockFactory getDataBlockFactory()

getTotalMemoryUsage

public long getTotalMemoryUsage()

Specified by:

getTotalMemoryUsage in interface MemoryAware

getCachedBlocks

public long getCachedBlocks()

Specified by:

getCachedBlocks in interface MemoryAware

getMaxKeys

public int getMaxKeys()

Specified by:

getMaxKeys in interface BlockPersister

getMinKeys

public int getMinKeys()

Specified by:

getMinKeys in interface BlockPersister

getKeyInfo

public KeyInfo getKeyInfo()

Specified by:

getKeyInfo in interface BlockPersister

loadBlock

public IndexBlock loadBlock(long position)
                     throws JasDBStorageException

Specified by:

loadBlock in interface BlockPersister

Throws:

JasDBStorageException

persistBlock

public void persistBlock(IndexBlock block)
                  throws JasDBStorageException

Specified by:

persistBlock in interface BlockPersister

Throws:

JasDBStorageException

flushAndCloseBlock

public void flushAndCloseBlock(IndexBlock block)
                        throws JasDBStorageException

Throws:

JasDBStorageException

markDeleted

public void markDeleted(IndexBlock block)
                 throws JasDBStorageException

Specified by:

markDeleted in interface BlockPersister

Throws:

JasDBStorageException

flush

public void flush()
           throws JasDBStorageException

Specified by:

flush in interface BlockPersister

Throws:

JasDBStorageException

close

public void close()
           throws JasDBStorageException

Specified by:

close in interface BlockPersister

Throws:

JasDBStorageException

releaseBlock

public void releaseBlock(IndexBlock block)

Specified by:

releaseBlock in interface BlockPersister

createBlock

public IndexBlock createBlock(BlockTypes blockType,
                              long parentBlock)
                       throws JasDBStorageException

Specified by:

createBlock in interface BlockPersister

Throws:

JasDBStorageException

getBlockSize

public long getBlockSize(BlockTypes blockType)

Specified by:

getBlockSize in interface BlockPersister