de.erichseifert.gral.data

Class Row

java.lang.Object

de.erichseifert.gral.data.DataAccessor

de.erichseifert.gral.data.Row

All Implemented Interfaces:

java.io.Serializable, java.lang.Iterable<java.lang.Comparable<?>>

public class Row
extends DataAccessor

Class for easily accessing a row of a data source.

Example:

 Row row = new Row(data, 2);
 Number value = row.get(3);
 

See Also:

DataSource, Serialized Form

Constructor Summary

Constructors

Constructor and Description
Row(DataSource source, int row) Initializes a new instances with the specified data source and row index.

Method Summary

Modifier and Type	Method and Description
java.lang.Comparable<?>	get(int col) Returns the value of the data source for the specified index.
boolean	isColumnNumeric(int columnIndex) Returns whether the column at the specified index contains numbers.
int	size() Returns the number of elements in this column.

Methods inherited from class de.erichseifert.gral.data.DataAccessor

equals, getIndex, getSource, getStatistics, hashCode, iterator, toArray, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

Row

public Row(DataSource source,
           int row)

Initializes a new instances with the specified data source and row index.

Parameters:

source - Data source.

row - Row index.

Method Detail

get

public java.lang.Comparable<?> get(int col)

Description copied from class: DataAccessor

Returns the value of the data source for the specified index.

Specified by:

get in class DataAccessor

Parameters:

col - Index.

Returns:

Value of the accessed cell.

size

public int size()

Description copied from class: DataAccessor

Returns the number of elements in this column.

Specified by:

size in class DataAccessor

Returns:

Number of elements

isColumnNumeric

public boolean isColumnNumeric(int columnIndex)

Returns whether the column at the specified index contains numbers.

Parameters:

columnIndex - Index of the column to test.

Returns:

true if the column is numeric, otherwise false.