Modifier and Type	Class and Description
pack-priv static interface	DataFileCache.Flags
pack-priv static interface	DataFileCache.Positions file format fields

Field Summary

Modifier and Type	Field and Description
protected String	backupFileName
protected Cache	cache
protected int	cachedRowPadding
protected boolean	cacheModified
protected boolean	cacheReadonly
protected Database	database
protected RandomAccessInterface	dataFile
protected String	dataFileName
protected int	dataFileScale
protected int	dataFileSpace
protected FileAccess	fa
protected volatile long	fileFreePosition
protected boolean	fileModified this flag is used externally to determine if a backup is required
protected long	fileStartFreePosition
pack-priv static final int	initIOBufferSize
pack-priv boolean	is251
pack-priv ReadWriteLock	lock
protected boolean	logEvents
protected long	lostSpaceSize
protected long	maxCacheBytes
protected int	maxCacheRows
public long	maxDataFileSize
pack-priv Lock	readLock
protected RowInputInterface	rowIn
public RowOutputInterface	rowOut
private RAShadowFile	shadowFile
public DataSpaceManager	spaceManager
protected long	spaceManagerPosition
protected int	storeCount
pack-priv Lock	writeLock

Constructor Summary

Access	Constructor and Description
public	DataFileCache(Database db, String baseFileName)
public	DataFileCache(Database db, String baseFileName, boolean defrag) used for defrag

Method Summary

Modifier and Type	Method and Description
public void	add(CachedObject object, boolean keep)
public void	adjustStoreCount(int adjust)
public long	bytesCapacity()
public int	capacity()
protected void	clear()
public void	close() Writes out all cached rows that have been modified and the free position pointer for the *.data file and then closes the file.
protected int	copyShadow(CachedObject[] rows, int offset, int count)
protected int	copyShadow(CachedObject row)
pack-priv DataFileDefrag	defrag(Session session)
private void	deleteBackupFile()
pack-priv void	deleteDataFile()
public long	enlargeFileSpace(long newLength) Delta must always result in block multiples
public CachedObject	get(CachedObject object, PersistentStore store, boolean keep)
public CachedObject	get(long pos, int size, PersistentStore store, boolean keep)
public CachedObject	get(long pos, PersistentStore store, boolean keep)
public AtomicInteger	getAccessCount()
public int	getCachedObjectCount()
public int	getDataFileScale()
public int	getDataFileSpace()
public long	getFileFreePos()
public String	getFileName()
pack-priv int	getFlags()
private CachedObject	getFromFile(long pos, PersistentStore store, boolean keep)
private CachedObject	getFromFile(long pos, int size, PersistentStore store, boolean keep)
public long	getLostBlockSize()
pack-priv RowInputInterface	getRaw(long pos)
public RAShadowFile	getShadowFile()
public long	getTotalCachedBlockSize()
protected void	initBuffers()
pack-priv void	initNewFile()
protected void	initParams(Database database, String baseFileName, boolean defrag) initial external parameters are set here.
public boolean	isDataReadOnly()
public boolean	isFileModified()
public boolean	isFileOpen()
public boolean	isModified()
pack-priv void	logDetailEvent(String message)
pack-priv void	logInfoEvent(String message)
private void	logSevereEvent(String message, Throwable t, long position)
public void	logSevereEvent(String message, Throwable t)
public void	open(boolean readonly) Opens the .data file for this cache, setting the variables that allow access to the particular database version of the .data file.
private void	openShadowFile()
private void	readObject(long pos)
protected void	readObject(long pos, int size)
public void	release() Abandons changed rows and closes the .data file.
public CachedObject	release(long pos)
public void	releaseRange(long startPos, long limitPos)
public void	releaseRange(IntIndex list, int fileBlockItemCount)
public void	remove(CachedObject object) Used when a row is deleted as a result of some DML or DDL statement.
public void	removePersistence(CachedObject object)
public void	reopen()
public void	reset() Commits all the changes to the file
private boolean	restoreBackup() Restores a compressed backup or the .data file.
private boolean	restoreBackupIncremental() Restores in from an incremental backup
public void	saveRow(CachedObject row) Writes out the specified Row.
protected void	saveRowNoLock(CachedObject row)
public void	saveRowOutput(long pos)
protected void	saveRows(CachedObject[] rows, int offset, int count)
protected void	setFileModified()
pack-priv void	setFlag(int singleFlag, boolean val)
pack-priv void	setFlags(int flags)
pack-priv void	setSpaceProps(int spaceProps)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

backupFileName	back to summary
protected String backupFileName

cache	back to summary
protected Cache cache

cachedRowPadding	back to summary
protected int cachedRowPadding

cacheModified	back to summary
protected boolean cacheModified

cacheReadonly	back to summary
protected boolean cacheReadonly

database	back to summary
protected Database database

dataFile	back to summary
protected RandomAccessInterface dataFile

dataFileName	back to summary
protected String dataFileName

dataFileScale	back to summary
protected int dataFileScale

dataFileSpace	back to summary
protected int dataFileSpace

fa	back to summary
protected FileAccess fa

fileFreePosition	back to summary
protected volatile long fileFreePosition

fileModified	back to summary
protected boolean fileModified this flag is used externally to determine if a backup is required

fileStartFreePosition	back to summary
protected long fileStartFreePosition

initIOBufferSize	back to summary
pack-priv static final int initIOBufferSize

is251	back to summary
pack-priv boolean is251

lock	back to summary
pack-priv ReadWriteLock lock

logEvents	back to summary
protected boolean logEvents

lostSpaceSize	back to summary
protected long lostSpaceSize

maxCacheBytes	back to summary
protected long maxCacheBytes

maxCacheRows	back to summary
protected int maxCacheRows

maxDataFileSize	back to summary
public long maxDataFileSize

readLock	back to summary
pack-priv Lock readLock

rowIn	back to summary
protected RowInputInterface rowIn

rowOut	back to summary
public RowOutputInterface rowOut

shadowFile	back to summary
private RAShadowFile shadowFile

spaceManager	back to summary
public DataSpaceManager spaceManager

spaceManagerPosition	back to summary
protected long spaceManagerPosition

storeCount	back to summary
protected int storeCount

writeLock	back to summary
pack-priv Lock writeLock

Constructor Detail

DataFileCache	back to summary
public DataFileCache(Database db, String baseFileName)

DataFileCache	back to summary
public DataFileCache(Database db, String baseFileName, boolean defrag) used for defrag

Method Detail

add	back to summary
public void add(CachedObject object, boolean keep)

adjustStoreCount	back to summary
public void adjustStoreCount(int adjust)

bytesCapacity	back to summary
public long bytesCapacity()

capacity	back to summary
public int capacity()

clear	back to summary
protected void clear()

close	back to summary
public void close() Writes out all cached rows that have been modified and the free position pointer for the *.data file and then closes the file.

copyShadow	back to summary
protected int copyShadow(CachedObject[] rows, int offset, int count)

copyShadow	back to summary
protected int copyShadow(CachedObject row)

defrag	back to summary
pack-priv DataFileDefrag defrag(Session session)

deleteBackupFile	back to summary
private void deleteBackupFile()

deleteDataFile	back to summary
pack-priv void deleteDataFile()

enlargeFileSpace	back to summary
public long enlargeFileSpace(long newLength) Delta must always result in block multiples

get	back to summary
public CachedObject get(CachedObject object, PersistentStore store, boolean keep)

get	back to summary
public CachedObject get(long pos, int size, PersistentStore store, boolean keep)

get	back to summary
public CachedObject get(long pos, PersistentStore store, boolean keep)

getAccessCount	back to summary
public AtomicInteger getAccessCount()

getCachedObjectCount	back to summary
public int getCachedObjectCount()

getDataFileScale	back to summary
public int getDataFileScale()

getDataFileSpace	back to summary
public int getDataFileSpace()

getFileFreePos	back to summary
public long getFileFreePos()

getFileName	back to summary
public String getFileName()

getFlags	back to summary
pack-priv int getFlags() throws IOException

getFromFile	back to summary
private CachedObject getFromFile(long pos, PersistentStore store, boolean keep)

getFromFile	back to summary
private CachedObject getFromFile(long pos, int size, PersistentStore store, boolean keep)

getLostBlockSize	back to summary
public long getLostBlockSize()

getRaw	back to summary
pack-priv RowInputInterface getRaw(long pos)

getShadowFile	back to summary
public RAShadowFile getShadowFile()

getTotalCachedBlockSize	back to summary
public long getTotalCachedBlockSize()

initBuffers	back to summary
protected void initBuffers()

initNewFile	back to summary
pack-priv void initNewFile()

initParams	back to summary
protected void initParams(Database database, String baseFileName, boolean defrag) initial external parameters are set here.

isDataReadOnly	back to summary
public boolean isDataReadOnly()

isFileModified	back to summary
public boolean isFileModified()

isFileOpen	back to summary
public boolean isFileOpen()

isModified	back to summary
public boolean isModified()

logDetailEvent	back to summary
pack-priv void logDetailEvent(String message)

logInfoEvent	back to summary
pack-priv void logInfoEvent(String message)

logSevereEvent	back to summary
private void logSevereEvent(String message, Throwable t, long position)

logSevereEvent	back to summary
public void logSevereEvent(String message, Throwable t)

open	back to summary
public void open(boolean readonly) Opens the .data file for this cache, setting the variables that allow access to the particular database version of the .data file.

openShadowFile	back to summary
private void openShadowFile()

readObject	back to summary
private void readObject(long pos)

readObject	back to summary
protected void readObject(long pos, int size)

release	back to summary
public void release() Abandons changed rows and closes the .data file.

release	back to summary
public CachedObject release(long pos)

releaseRange	back to summary
public void releaseRange(long startPos, long limitPos)

releaseRange	back to summary
public void releaseRange(IntIndex list, int fileBlockItemCount)

remove	back to summary
public void remove(CachedObject object) Used when a row is deleted as a result of some DML or DDL statement. Removes the row from the cache data structures.

removePersistence	back to summary
public void removePersistence(CachedObject object)

reopen	back to summary
public void reopen()

reset	back to summary
public void reset() Commits all the changes to the file

restoreBackup	back to summary
private boolean restoreBackup() Restores a compressed backup or the .data file.

restoreBackupIncremental	back to summary
private boolean restoreBackupIncremental() Restores in from an incremental backup

saveRow	back to summary
public void saveRow(CachedObject row) Writes out the specified Row. Will write only the Nodes or both Nodes and table row data depending on what is not already persisted to disk.

saveRowNoLock	back to summary
protected void saveRowNoLock(CachedObject row)

saveRowOutput	back to summary
public void saveRowOutput(long pos)

saveRows	back to summary
protected void saveRows(CachedObject[] rows, int offset, int count)

setFileModified	back to summary
protected void setFileModified()

setFlag	back to summary
pack-priv void setFlag(int singleFlag, boolean val) throws IOException

setFlags	back to summary
pack-priv void setFlags(int flags) throws IOException

setSpaceProps	back to summary
pack-priv void setSpaceProps(int spaceProps)

org.hsqldb.persist back to summary

pack-priv Interface DataFileCache.Flags

Field Summary

Modifier and Type	Field and Description
public static final int	FLAG_200
public static final int	FLAG_251
public static final int	FLAG_HX
public static final int	FLAG_ISSAVED
public static final int	FLAG_ISSHADOWED
public static final int	FLAG_ROWINFO

Field Detail

FLAG_200	back to summary
public static final int FLAG_200

FLAG_251	back to summary
public static final int FLAG_251

FLAG_HX	back to summary
public static final int FLAG_HX

FLAG_ISSAVED	back to summary
public static final int FLAG_ISSAVED

FLAG_ISSHADOWED	back to summary
public static final int FLAG_ISSHADOWED

FLAG_ROWINFO	back to summary
public static final int FLAG_ROWINFO

org.hsqldb.persist back to summary

pack-priv Interface DataFileCache.Positions

file format fields

Field Summary

Modifier and Type	Field and Description
public static final int	INT_FLAGS
public static final int	INT_SPACE_LIST_POS
public static final int	INT_SPACE_PROPS
public static final int	LONG_EMPTY_SIZE
public static final int	LONG_FREE_POS
public static final int	LONG_TIMESTAMP
public static final int	MAX_INITIAL_FREE_POS
public static final int	MIN_INITIAL_FREE_POS

Field Detail

INT_FLAGS	back to summary
public static final int INT_FLAGS

INT_SPACE_LIST_POS	back to summary
public static final int INT_SPACE_LIST_POS

INT_SPACE_PROPS	back to summary
public static final int INT_SPACE_PROPS

LONG_EMPTY_SIZE	back to summary
public static final int LONG_EMPTY_SIZE

LONG_FREE_POS	back to summary
public static final int LONG_FREE_POS

LONG_TIMESTAMP	back to summary
public static final int LONG_TIMESTAMP

MAX_INITIAL_FREE_POS	back to summary
public static final int MAX_INITIAL_FREE_POS

MIN_INITIAL_FREE_POS	back to summary
public static final int MIN_INITIAL_FREE_POS

public Class DataFileCache

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

pack-priv Interface DataFileCache.Flags

Field Summary

Field Detail

pack-priv Interface DataFileCache.Positions

Field Summary

Field Detail