org.h2.result
Class Row

java.lang.Object
  org.h2.util.CacheObject
      org.h2.store.Record
          org.h2.result.Row

All Implemented Interfaces:

SearchRow

public class Row
extends Record
implements SearchRow

Represents a row in a table.

Field Summary

static int

MEMORY_CALCULATE

Fields inherited from class org.h2.util.CacheObject

blockCount, cacheQueue, chained, next, previous

Constructor Summary

Row(Value[] data, int memory)

Method Summary

int	getByteCount(DataPage dummy) Get the number of bytes required for the data if the given data page would be used.
int	getColumnCount() Get the column count.
long	getKey() Get the unique key of the row.
int	getMemorySize() Get the estimated memory size.
Value	getValue(int i) Get the value for the column
int	getVersion() Get the version of the row.
boolean	isEmpty() Check if this record is empty.
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	setPos(int pos)
void	setValue(int i, Value v) Set the value for given column
void	setVersion(int version)
java.lang.String	toString()
void	write(DataPage buff) Write the record to the data page.

Methods inherited from class org.h2.store.Record

canRemove, commit, getSessionId, getStorageId, isDeleted, isLogWritten, prepareWrite, setDeleted, setLastLog, setLogWritten, setSessionId, setStorageId

Methods inherited from class org.h2.util.CacheObject

getBlockCount, getPos, isChanged, isPinned, setBlockCount, setChanged, sort

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

Constructor Detail

Row

public Row(Value[] data,
           int memory)

Method Detail

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

setPos

public void setPos(int pos)

Overrides:

setPos in class CacheObject

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

write

public void write(DataPage buff)
           throws java.sql.SQLException

Description copied from class: Record

Write the record to the data page.

Specified by:

write in class Record

Parameters:

buff - the data page

Throws:

java.sql.SQLException

getByteCount

public int getByteCount(DataPage dummy)
                 throws java.sql.SQLException

Description copied from class: Record

Get the number of bytes required for the data if the given data page would be used.

Specified by:

getByteCount in class Record

Parameters:

dummy - the template data page

Returns:

the number of bytes

Throws:

java.sql.SQLException

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()

Description copied from class: Record

Check if this record is empty.

Overrides:

isEmpty in class Record

Returns:

false

getColumnCount

public int getColumnCount()

Description copied from interface: SearchRow

Get the column count.

Specified by:

getColumnCount in interface SearchRow

Returns:

the column count

getMemorySize

public int getMemorySize()

Description copied from class: CacheObject

Get the estimated memory size.

Overrides:

getMemorySize in class CacheObject

Returns:

number of double words (4 bytes)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object