org.hsqldb

Class Row

java.lang.Object

org.hsqldb.Row

All Implemented Interfaces:

CachedObject

Direct Known Subclasses:

RowAVL

public class Row
extends java.lang.Object
implements CachedObject

Base class for a database row object.

Field Summary

Fields

Modifier and Type	Field and Description
RowAction	rowAction

Fields inherited from interface org.hsqldb.persist.CachedObject

emptyArray

Constructor Summary

Constructors

Constructor and Description
Row(TableBase table, java.lang.Object[] data) Default constructor used only in subclasses.

Method Summary

Modifier and Type	Method and Description
void	delete(PersistentStore store)
void	destroy()
boolean	equals(java.lang.Object obj) Lifetime scope of this method is limited depends on the operations performed.
int	getAccessCount()
RowAction	getAction()
java.lang.Object[]	getData() Returns the array of fields in the database row.
int	getDefaultCapacity()
long	getId()
long	getPos()
int	getRealSize(RowOutputInterface out)
int	getStorageSize()
TableBase	getTable()
boolean	hasChanged()
int	hashCode() Hash code is always valid.
boolean	isBlock()
boolean	isInMemory()
boolean	isKeepInMemory()
boolean	isMemory()
boolean	isNew()
boolean	keepInMemory(boolean keep)
void	read(RowInputInterface in)
void	restore()
void	setChanged(boolean changed)
void	setInMemory(boolean in)
void	setPos(long pos)
void	setStorageSize(int size)
void	updateAccessCount(int count)
void	write(RowOutputInterface out)
void	write(RowOutputInterface out, LongLookup lookup)

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Field Detail

rowAction

public volatile RowAction rowAction

Constructor Detail

Row

public Row(TableBase table,
           java.lang.Object[] data)

Default constructor used only in subclasses.

Method Detail

getAction

public RowAction getAction()

getData

public java.lang.Object[] getData()

Returns the array of fields in the database row.

setChanged

public void setChanged(boolean changed)

setStorageSize

public void setStorageSize(int size)

Specified by:

setStorageSize in interface CachedObject

getStorageSize

public int getStorageSize()

Specified by:

getStorageSize in interface CachedObject

isBlock

public final boolean isBlock()

Specified by:

isBlock in interface CachedObject

isMemory

public boolean isMemory()

Specified by:

isMemory in interface CachedObject

updateAccessCount

public void updateAccessCount(int count)

Specified by:

updateAccessCount in interface CachedObject

getAccessCount

public int getAccessCount()

Specified by:

getAccessCount in interface CachedObject

getPos

public long getPos()

Specified by:

getPos in interface CachedObject

getId

public long getId()

setPos

public void setPos(long pos)

Specified by:

setPos in interface CachedObject

isNew

public boolean isNew()

Specified by:

isNew in interface CachedObject

hasChanged

public boolean hasChanged()

Specified by:

hasChanged in interface CachedObject

isKeepInMemory

public boolean isKeepInMemory()

Specified by:

isKeepInMemory in interface CachedObject

keepInMemory

public boolean keepInMemory(boolean keep)

Specified by:

keepInMemory in interface CachedObject

isInMemory

public boolean isInMemory()

Specified by:

isInMemory in interface CachedObject

setInMemory

public void setInMemory(boolean in)

Specified by:

setInMemory in interface CachedObject

delete

public void delete(PersistentStore store)

restore

public void restore()

Specified by:

restore in interface CachedObject

destroy

public void destroy()

Specified by:

destroy in interface CachedObject

getRealSize

public int getRealSize(RowOutputInterface out)

Specified by:

getRealSize in interface CachedObject

getTable

public TableBase getTable()

getDefaultCapacity

public int getDefaultCapacity()

Specified by:

getDefaultCapacity in interface CachedObject

read

public void read(RowInputInterface in)

Specified by:

read in interface CachedObject

write

public void write(RowOutputInterface out)

Specified by:

write in interface CachedObject

write

public void write(RowOutputInterface out,
                  LongLookup lookup)

Specified by:

write in interface CachedObject

equals

public boolean equals(java.lang.Object obj)

Lifetime scope of this method is limited depends on the operations performed. Rows deleted completely can equal rows produced later. This can return invalid results if used with deleted rows.

Overrides:

equals in class java.lang.Object

Parameters:

obj - row to compare

Returns:

boolean

hashCode

public int hashCode()

Hash code is always valid.

Overrides:

hashCode in class java.lang.Object

Returns:

file position of row