org.grouplens.lenskit.util.table

Interface Row

All Superinterfaces:

Iterable<Object>

public interface Row
extends Iterable<Object>

One row of a data table.

Method Summary

Modifier and Type	Method and Description
Map<String,Object>	asMap() Get a view of this row as a map.
int	length() Get the length of this row.
Object	value(int idx) Get the value at a particular column.
Object	value(String key) Get the value at a particular column.

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

Method Detail

value

@Nullable
Object value(String key)

Get the value at a particular column.

Parameters:

key - The column name.

Returns:

The value at that column.

Throws:

IllegalArgumentException - if key does not define a column.

value

@Nullable
Object value(int idx)

Get the value at a particular column.

Parameters:

idx - The column index.

Returns:

The value at that column.

Throws:

IndexOutOfBoundsException - if idx is not a valid column index.

length

int length()

Get the length of this row.

Returns:

The length of the row.

asMap

Map<String,Object> asMap()

Get a view of this row as a map.

Returns:

A map representing this row.