org.h2.result

Class RowImpl

java.lang.Object

org.h2.result.RowImpl

All Implemented Interfaces:

Row, SearchRow

public class RowImpl
extends java.lang.Object
implements Row

Default row implementation.

Field Summary

Fields inherited from interface org.h2.result.Row

EMPTY_ARRAY, MEMORY_CALCULATE

Fields inherited from interface org.h2.result.SearchRow

ROWID_INDEX

Constructor Summary

Constructors

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

Method Summary

Methods

Modifier and Type	Method and Description
int	getByteCount(Data dummy) Get the number of bytes required for the data.
int	getColumnCount() Get the column count.
long	getKey() Get the unique key of the row.
int	getMemory() Get the estimated memory used for this row, in bytes.
Value	getValue(int i) Get the value for the column
Value[]	getValueList() Get values.
boolean	hasSharedData(Row other) Check whether this row and the specified row share the same underlying data with values.
boolean	isDeleted() Check if the row is deleted.
boolean	isEmpty() Check if this is an empty row.
void	setDeleted(boolean deleted) Mark the row as deleted.
void	setKey(long key) Set the unique key of the row.
void	setKey(SearchRow row) Set the position to match another row.
void	setValue(int i, Value v) Set the value for given column
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

RowImpl

public RowImpl(Value[] data,
       int memory)

Method Detail

setKey

public void setKey(SearchRow row)

Description copied from interface: SearchRow

Set the position to match another row.

Specified by:

setKey in interface SearchRow

Parameters:

row - the other row.

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.

Specified by:

getByteCount in interface Row

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()

Description copied from interface: Row

Check if this is an empty row.

Specified by:

isEmpty in interface Row

Returns:

true if the row is empty

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 java.lang.String toString()

Overrides:

toString in class java.lang.Object

setDeleted

public void setDeleted(boolean deleted)

Description copied from interface: Row

Mark the row as deleted.

Specified by:

setDeleted in interface Row

Parameters:

deleted - deleted flag

isDeleted

public boolean isDeleted()

Description copied from interface: Row

Check if the row is deleted.

Specified by:

isDeleted in interface Row

Returns:

true if the row is deleted

getValueList

public Value[] getValueList()

Description copied from interface: Row

Get values.

Specified by:

getValueList in interface Row

Returns:

values

hasSharedData

public boolean hasSharedData(Row other)

Description copied from interface: Row

Check whether this row and the specified row share the same underlying data with values. This method must return false when values are not equal and may return either true or false when they are equal. This method may be used only for optimizations and should not perform any slow checks, such as equality checks for all pairs of values.

Specified by:

hasSharedData in interface Row

Parameters:

other - the other row

Returns:

true if rows share the same underlying data, false otherwise or when unknown