io.delta.kernel.data

Interface ColumnVector

All Superinterfaces:

java.lang.AutoCloseable

All Known Implementing Classes:

SelectionColumnVector

public interface ColumnVector
extends java.lang.AutoCloseable

Represents zero or more values of a single column.

Method Summary

Modifier and Type	Method and Description
void	close() Cleans up memory for this column vector.
default <T> java.util.List<T>	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.
DataType	getDataType()
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 <K,V> java.util.Map<K,V>	getMap(int rowId) Return the map type value located at rowId.
default short	getShort(int rowId) Returns the short type value for rowId.
int	getSize()
default java.lang.String	getString(int rowId) Returns the string type value for rowId.
default Row	getStruct(int rowId) Return the row value located at 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 java.lang.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 java.lang.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

getMap

default <K,V> java.util.Map<K,V> getMap(int rowId)

Return the map type value located at rowId. The return value is undefined and can be anything, if the slot for rowId is null.

Type Parameters:

K - Return map key type

V - Return map value type

Parameters:

rowId -

Returns:

getStruct

default Row getStruct(int rowId)

Return the row value located at rowId. The return value is undefined and can be anything, if the slot for rowId is null.

Parameters:

rowId -

Returns:

getArray

default <T> java.util.List<T> getArray(int rowId)

Return the array value located at rowId. The return value is undefined and can be anything, if the slot for rowId is null.

Type Parameters:

T - Array element type

Parameters:

rowId -

Returns: