Package org.jfree.data.xy

Class XYItemKey<S extends Comparable<S>>

java.lang.Object

org.jfree.data.xy.XYItemKey<S>

Type Parameters:

S - the series key type.

All Implemented Interfaces:

Serializable, Comparable<XYItemKey<S>>, ItemKey

public class XYItemKey<S extends Comparable<S>>
extends Object
implements ItemKey, Comparable<XYItemKey<S>>, Serializable

An object that references one data item in an XYZDataset. This is used internally to track the data item that a 3D object is related to, if any (and later that link is used for chart interaction). Instances of this class are immutable.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
XYItemKey(S seriesKey, int itemIndex)	Creates a new instance.

Method Summary

Modifier and Type	Method	Description
int	compareTo(XYItemKey<S> key)
boolean	equals(Object obj)	Tests this instance for equality with an arbitrary object.
int	getItemIndex()	Returns the item index.
S	getSeriesKey()	Returns the series key.
int	hashCode()
String	toJSONString()	Returns a JSON formatted string representing the key.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

XYItemKey

public XYItemKey(S seriesKey,
 int itemIndex)

Creates a new instance.

Parameters:

seriesKey - the series key.

itemIndex - the item index.

Method Details

getSeriesKey

public S getSeriesKey()

Returns the series key.

Returns:

The series key (never null).

getItemIndex

public int getItemIndex()

Returns the item index.

Returns:

The item index.

equals

public boolean equals(Object obj)

Tests this instance for equality with an arbitrary object.

Overrides:

equals in class Object

Parameters:

obj - the object to test (null permitted).

Returns:

A boolean.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toJSONString

public String toJSONString()

Description copied from interface: ItemKey

Returns a JSON formatted string representing the key.

Specified by:

toJSONString in interface ItemKey

Returns:

A JSON formatted string.

toString

public String toString()

Overrides:

toString in class Object

compareTo

public int compareTo(XYItemKey<S> key)

Specified by:

compareTo in interface Comparable<S extends Comparable<S>>