Package io.delta.kernel.defaults.internal.data.vector

Class DefaultMapVector

Object

io.delta.kernel.defaults.internal.data.vector.AbstractColumnVector

io.delta.kernel.defaults.internal.data.vector.DefaultMapVector

All Implemented Interfaces:

io.delta.kernel.data.ColumnVector, AutoCloseable

public class DefaultMapVector
extends AbstractColumnVector

ColumnVector implementation for map type data.

Constructor Summary

Constructors

Constructor	Description
DefaultMapVector(int size, io.delta.kernel.types.DataType type, Optional<boolean[]> nullability, int[] offsets, io.delta.kernel.data.ColumnVector keyVector, io.delta.kernel.data.ColumnVector valueVector)	Create an instance of ColumnVector for map type.

Method Summary

Modifier and Type	Method	Description
io.delta.kernel.data.MapValue	getMap(int rowId)	Get the value at given rowId.

Methods inherited from class io.delta.kernel.defaults.internal.data.vector.AbstractColumnVector

close, getArray, getBinary, getBoolean, getByte, getDataType, getDecimal, getDouble, getFloat, getInt, getLong, getShort, getSize, getString, isNullAt

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface io.delta.kernel.data.ColumnVector

getChild

Constructor Details

DefaultMapVector

public DefaultMapVector(int size,
 io.delta.kernel.types.DataType type,
 Optional<boolean[]> nullability,
 int[] offsets,
 io.delta.kernel.data.ColumnVector keyVector,
 io.delta.kernel.data.ColumnVector valueVector)

Create an instance of ColumnVector for map type.

Parameters:

size - number of elements in the vector.

nullability - Optional array of nullability value for each element in the vector. All values in the vector are considered non-null when parameter is empty.

offsets - Offsets into key and value column vectors on where the index of particular row values start and end.

keyVector - Vector containing the `key` values from the kv map.

valueVector - Vector containing the `value` values from the kv map.

Method Details

getMap

public io.delta.kernel.data.MapValue getMap(int rowId)

Get the value at given rowId. The return value is undefined and can be anything, if the slot for rowId is null.

Specified by:

getMap in interface io.delta.kernel.data.ColumnVector

Overrides:

getMap in class AbstractColumnVector

Parameters:

rowId -

Returns: