org.grouplens.lenskit.util.table

Interface Table

All Superinterfaces:

Collection<Row>, Iterable<Row>, List<Row>

public interface Table
extends List<Row>

This is the interface for the in memory table which stores a list of rows. Users should be able to call the filter method to find the rows that satisfy the conditions specified by users. And table expose the functions of columns to enable users calling the functions on column.

Method Summary

Modifier and Type	Method and Description
Column	column(int idx) Get a column by index.
Column	column(String col) Get a column by name.
Table	filter(String header, Object data)
TableLayout	getLayout() Get the layout of this table.

Methods inherited from interface java.util.List

add, add, addAll, addAll, clear, contains, containsAll, equals, get, hashCode, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, replaceAll, retainAll, set, size, sort, spliterator, subList, toArray, toArray

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable

forEach

Method Detail

filter

Table filter(String header,
             Object data)

column

Column column(int idx)

Get a column by index.

Parameters:

idx - The column index (starting from 0).

Returns:

The column.

Throws:

IllegalArgumentException - if idx is out of bounds.

column

Column column(String col)

Get a column by name.

Parameters:

col - The column name.

Returns:

The column.

Throws:

IllegalArgumentException - if col is not a valid column.

getLayout

TableLayout getLayout()

Get the layout of this table.

Returns:

The table layout.