io.delta.kernel.data

Interface ColumnVector

All Superinterfaces:

AutoCloseable

@Evolving
public interface ColumnVector
extends AutoCloseable

Represents zero or more values of a single column.

Since:

3.0.0

Method Summary

Modifier and Type	Method and Description
void	close() Cleans up memory for this column vector.
default ArrayValue	getArray(int rowId) Return the array value located at rowId.
default byte[]	getBinary(int rowId) Returns the binary type value for rowId.
default boolean	getBoolean(int rowId) Returns the boolean type value for rowId.
default byte	getByte(int rowId) Returns the byte type value for rowId.
default ColumnVector	getChild(int ordinal) Get the child vector associated with the given ordinal.
DataType	getDataType()
default java.math.BigDecimal	getDecimal(int rowId) Returns the decimal type value for rowId.
default double	getDouble(int rowId) Returns the double type value for rowId.
default float	getFloat(int rowId) Returns the float type value for rowId.
default int	getInt(int rowId) Returns the int type value for rowId.
default long	getLong(int rowId) Returns the long type value for rowId.
default MapValue	getMap(int rowId) Return the map value located at rowId.
default short	getShort(int rowId) Returns the short type value for rowId.
int	getSize()
default String	getString(int rowId) Returns the string type value for rowId.
boolean	isNullAt(int rowId)

Method Detail

getDataType

DataType getDataType()

Returns:

the data type of this column vector.

getSize

int getSize()

Returns:

number of elements in the vector

close

void close()

Cleans up memory for this column vector. The column vector is not usable after this.

Specified by:

close in interface AutoCloseable

isNullAt

boolean isNullAt(int rowId)

Parameters:

rowId -

Returns:

whether the value at rowId is NULL.

getBoolean

default boolean getBoolean(int rowId)

Returns the boolean type value for rowId. The return value is undefined and can be anything, if the slot for rowId is null.

Parameters:

rowId -

Returns:

Boolean value at the given row id

getByte

default byte getByte(int rowId)

Returns the byte type value for rowId. The return value is undefined and can be anything, if the slot for rowId is null.

Parameters:

rowId -

Returns:

Byte value at the given row id

getShort

default short getShort(int rowId)

Returns the short type value for rowId. The return value is undefined and can be anything, if the slot for rowId is null.

Parameters:

rowId -

Returns:

Short value at the given row id

getInt

default int getInt(int rowId)

Returns the int type value for rowId. The return value is undefined and can be anything, if the slot for rowId is null.

Parameters:

rowId -

Returns:

Integer value at the given row id

getLong

default long getLong(int rowId)

Returns the long type value for rowId. The return value is undefined and can be anything, if the slot for rowId is null.

Parameters:

rowId -

Returns:

Long value at the given row id

getFloat

default float getFloat(int rowId)

Returns the float type value for rowId. The return value is undefined and can be anything, if the slot for rowId is null.

Parameters:

rowId -

Returns:

Float value at the given row id

getDouble

default double getDouble(int rowId)

Returns the double type value for rowId. The return value is undefined and can be anything, if the slot for rowId is null.

Parameters:

rowId -

Returns:

Double value at the given row id

getBinary

default byte[] getBinary(int rowId)

Returns the binary type value for rowId. The return value is undefined and can be anything, if the slot for rowId is null.

Parameters:

rowId -

Returns:

Binary value at the given row id

getString

default String getString(int rowId)

Returns the string type value for rowId. The return value is undefined and can be anything, if the slot for rowId is null.

Parameters:

rowId -

Returns:

String value at the given row id

getDecimal

default java.math.BigDecimal getDecimal(int rowId)

Returns the decimal type value for rowId. The return value is undefined and can be anything, if the slot for rowId is null.

Parameters:

rowId -

Returns:

Decimal value at the given row id

getMap

default MapValue getMap(int rowId)

Return the map value located at rowId. Returns null if the slot for rowId is null

getArray

default ArrayValue getArray(int rowId)

Return the array value located at rowId. Returns null if the slot for rowId is null

getChild

default ColumnVector getChild(int ordinal)

Get the child vector associated with the given ordinal. This method is applicable only to the struct type columns.

Parameters:

ordinal - Ordinal of the child vector to return.