org.h2.result

Class Row

java.lang.Object

org.h2.result.Row

All Implemented Interfaces:

SearchRow

public class Row
extends Object
implements SearchRow

Represents a row in a table.

Field Summary

Fields

Modifier and Type	Field and Description
static Row[]	EMPTY_ARRAY
static int	MEMORY_CALCULATE

Constructor Summary

Constructors

Constructor and Description
Row(Value[] data, int memory)

Method Summary

Methods

Modifier and Type	Method and Description
void	commit() This record has been committed.
int	getByteCount(Data dummy) Get the number of bytes required for the data.
int	getColumnCount() Get the column count.
Row	getCopy() Get a copy of the row that is distinct from (not equal to) this row.
long	getKey() Get the unique key of the row.
int	getMemory() Get the estimated memory used for this row, in bytes.
int	getSessionId()
Value	getValue(int i) Get the value for the column
int	getVersion() Get the version of the row.
boolean	isDeleted()
boolean	isEmpty()
void	setDeleted(boolean deleted)
void	setKey(long key) Set the unique key of the row.
void	setKeyAndVersion(SearchRow row) Set the position and version to match another row.
void	setSessionId(int sessionId)
void	setValue(int i, Value v) Set the value for given column
void	setVersion(int version)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

MEMORY_CALCULATE

public static final int MEMORY_CALCULATE

See Also:

Constant Field Values

EMPTY_ARRAY

public static final Row[] EMPTY_ARRAY

Constructor Detail

Row

public Row(Value[] data,
   int memory)

Method Detail

getCopy

public Row getCopy()

Get a copy of the row that is distinct from (not equal to) this row. This is used for FOR UPDATE to allow pseudo-updating a row.

Returns:

a new row with the same data

setKeyAndVersion

public void setKeyAndVersion(SearchRow row)

Description copied from interface: SearchRow

Set the position and version to match another row.

Specified by:

setKeyAndVersion in interface SearchRow

Parameters:

row - the other row.

getVersion

public int getVersion()

Description copied from interface: SearchRow

Get the version of the row.

Specified by:

getVersion in interface SearchRow

Returns:

the version

setVersion

public void setVersion(int version)

getKey

public long getKey()

Description copied from interface: SearchRow

Get the unique key of the row.

Specified by:

getKey in interface SearchRow

Returns:

the key

setKey

public void setKey(long key)

Description copied from interface: SearchRow

Set the unique key of the row.

Specified by:

setKey in interface SearchRow

Parameters:

key - the key

getValue

public Value getValue(int i)

Description copied from interface: SearchRow

Get the value for the column

Specified by:

getValue in interface SearchRow

Parameters:

i - the column number (starting with 0)

Returns:

the value

getByteCount

public int getByteCount(Data dummy)

Get the number of bytes required for the data.

Parameters:

dummy - the template buffer

Returns:

the number of bytes

setValue

public void setValue(int i,
            Value v)

Description copied from interface: SearchRow

Set the value for given column

Specified by:

setValue in interface SearchRow

Parameters:

i - the column number (starting with 0)

v - the new value

isEmpty

public boolean isEmpty()

getColumnCount

public int getColumnCount()

Description copied from interface: SearchRow

Get the column count.

Specified by:

getColumnCount in interface SearchRow

Returns:

the column count

getMemory

public int getMemory()

Description copied from interface: SearchRow

Get the estimated memory used for this row, in bytes.

Specified by:

getMemory in interface SearchRow

Returns:

the memory

toString

public String toString()

Overrides:

toString in class Object

setDeleted

public void setDeleted(boolean deleted)

setSessionId

public void setSessionId(int sessionId)

getSessionId

public int getSessionId()

commit

public void commit()

This record has been committed. The session id is reset.

isDeleted

public boolean isDeleted()