org.lenskit.util.table

Interface Row

All Superinterfaces:

java.lang.Iterable<java.lang.Object>

public interface Row
extends java.lang.Iterable<java.lang.Object>

One row of a data table.

Method Summary

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

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

Method Detail

value

@Nullable
java.lang.Object value(java.lang.String key)

Get the value at a particular column.

Parameters:

key - The column name.

Returns:

The value at that column.

Throws:

java.lang.IllegalArgumentException - if key does not define a column.

value

@Nullable
java.lang.Object value(int idx)

Get the value at a particular column.

Parameters:

idx - The column index.

Returns:

The value at that column.

Throws:

java.lang.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

java.util.Map<java.lang.String,java.lang.Object> asMap()

Get a view of this row as a map.

Returns:

A map representing this row.

asRow

java.util.List<java.lang.Object> asRow()

Get a view of this row as a list.