Module org.jfree.chart

Package org.jfree.chart.entity

Class StandardEntityCollection

java.lang.Object

org.jfree.chart.entity.StandardEntityCollection

All Implemented Interfaces:

Serializable, Cloneable, PublicCloneable, EntityCollection

public class StandardEntityCollection
extends Object
implements EntityCollection, Cloneable, PublicCloneable, Serializable

A standard implementation of the EntityCollection interface.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
StandardEntityCollection()	Constructs a new entity collection (initially empty).

Method Summary

Modifier and Type	Method	Description
void	add(ChartEntity entity)	Adds an entity to the collection.
void	addAll(EntityCollection collection)	Adds all the entities from the specified collection.
void	clear()	Clears all the entities from the collection.
Object	clone()	Returns a clone of this entity collection.
boolean	equals(Object obj)	Tests this object for equality with an arbitrary object.
Collection<ChartEntity>	getEntities()	Returns the entities in an unmodifiable collection.
ChartEntity	getEntity(double x, double y)	Returns the last entity in the list with an area that encloses the specified coordinates, or null if there is no such entity.
ChartEntity	getEntity(int index)	Returns a chart entity from the collection.
int	getEntityCount()	Returns the number of entities in the collection.
int	hashCode()
Iterator<ChartEntity>	iterator()	Returns an iterator for the entities in the collection.

Methods inherited from class java.lang.Object

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

Constructor Detail

StandardEntityCollection

public StandardEntityCollection()

Constructs a new entity collection (initially empty).

Method Detail

getEntityCount

public int getEntityCount()

Returns the number of entities in the collection.

Specified by:

getEntityCount in interface EntityCollection

Returns:

The entity count.

getEntity

public ChartEntity getEntity(int index)

Returns a chart entity from the collection.

Specified by:

getEntity in interface EntityCollection

Parameters:

index - the entity index.

Returns:

The entity.

See Also:

add(ChartEntity)

clear

public void clear()

Clears all the entities from the collection.

Specified by:

clear in interface EntityCollection

add

public void add(ChartEntity entity)

Adds an entity to the collection.

Specified by:

add in interface EntityCollection

Parameters:

entity - the entity (null not permitted).

addAll

public void addAll(EntityCollection collection)

Adds all the entities from the specified collection.

Specified by:

addAll in interface EntityCollection

Parameters:

collection - the collection of entities (null not permitted).

getEntity

public ChartEntity getEntity(double x,
                             double y)

Returns the last entity in the list with an area that encloses the specified coordinates, or null if there is no such entity.

Specified by:

getEntity in interface EntityCollection

Parameters:

x - the x coordinate.

y - the y coordinate.

Returns:

The entity (possibly null).

getEntities

public Collection<ChartEntity> getEntities()

Returns the entities in an unmodifiable collection.

Specified by:

getEntities in interface EntityCollection

Returns:

The entities.

iterator

public Iterator<ChartEntity> iterator()

Returns an iterator for the entities in the collection.

Specified by:

iterator in interface EntityCollection

Returns:

An iterator.

equals

public boolean equals(Object obj)

Tests this object for equality with an arbitrary object.

Overrides:

equals in class Object

Parameters:

obj - the object to test against (null permitted).

Returns:

A boolean.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

clone

public Object clone()
             throws CloneNotSupportedException

Returns a clone of this entity collection.

Specified by:

clone in interface PublicCloneable

Overrides:

clone in class Object

Returns:

A clone.

Throws:

CloneNotSupportedException - if the object cannot be cloned.