de.erichseifert.gral.data

Class Column<T extends java.lang.Comparable<T>>

java.lang.Object

de.erichseifert.gral.data.Column<T>

All Implemented Interfaces:

java.io.Serializable, java.lang.Iterable<T>

public class Column<T extends java.lang.Comparable<T>>
extends java.lang.Object
implements java.lang.Iterable<T>, java.io.Serializable

Class for accessing a specific column of a data source. The data of the column can be accessed using the get(int) method.

Example for accessing value at column 2, row 3 of a data source:

 Column col = new Column(dataSource, 2);
 Number v = col.get(3);
 

See Also:

DataSource, Serialized Form

Constructor Summary

Constructors

Constructor and Description
Column(java.lang.Class<T> dataType, java.lang.Iterable<T> data)
Column(java.lang.Class<T> dataType, T... data)

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
T	get(int row)
double	getStatistics(java.lang.String key)
java.lang.Class<? extends java.lang.Comparable<?>>	getType()
int	hashCode()
boolean	isNumeric() Returns whether this column only contains numbers.
java.util.Iterator<T>	iterator()
int	size()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

Column

public Column(java.lang.Class<T> dataType,
              T... data)

Column

public Column(java.lang.Class<T> dataType,
              java.lang.Iterable<T> data)

Method Detail

get

public T get(int row)

size

public int size()

isNumeric

public boolean isNumeric()

Returns whether this column only contains numbers.

Returns:

true if this column is numeric, otherwise false.

getType

public java.lang.Class<? extends java.lang.Comparable<?>> getType()

getStatistics

public double getStatistics(java.lang.String key)

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

iterator

public java.util.Iterator<T> iterator()

Specified by:

iterator in interface java.lang.Iterable<T extends java.lang.Comparable<T>>