org.jfree.util

Class AbstractObjectList

java.lang.Object

org.jfree.util.AbstractObjectList

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

BooleanList, ObjectList, PaintList, ShapeList, StrokeList

public class AbstractObjectList
extends Object
implements Cloneable, Serializable

A list of objects that can grow as required.

Author:

David Gilbert

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_INITIAL_CAPACITY The default initial capacity of the list.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractObjectList() Creates a new list with the default initial capacity.
protected	AbstractObjectList(int initialCapacity) Creates a new list.
protected	AbstractObjectList(int initialCapacity, int increment) Creates a new list.

Method Summary

Methods

Modifier and Type	Method and Description
void	clear() Clears the list.
Object	clone() Clones the list of objects.
boolean	equals(Object obj) Tests this list for equality with another object.
protected Object	get(int index) Returns the object at the specified index, if there is one, or null.
int	hashCode() Returns a hash code value for the object.
protected int	indexOf(Object object) Returns the index of the specified object, or -1 if the object is not in the list.
protected void	set(int index, Object object) Sets an object reference (overwriting any existing object).
int	size() Returns the size of the list.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_INITIAL_CAPACITY

public static final int DEFAULT_INITIAL_CAPACITY

The default initial capacity of the list.

See Also:

Constant Field Values

Constructor Detail

AbstractObjectList

protected AbstractObjectList()

Creates a new list with the default initial capacity.

AbstractObjectList

protected AbstractObjectList(int initialCapacity)

Creates a new list.

Parameters:

initialCapacity - the initial capacity.

AbstractObjectList

protected AbstractObjectList(int initialCapacity,
                  int increment)

Creates a new list.

Parameters:

initialCapacity - the initial capacity.

increment - the increment.

Method Detail

get

protected Object get(int index)

Returns the object at the specified index, if there is one, or null.

Parameters:

index - the object index.

Returns:

The object or null.

set

protected void set(int index,
       Object object)

Sets an object reference (overwriting any existing object).

Parameters:

index - the object index.

object - the object (null permitted).

clear

public void clear()

Clears the list.

size

public int size()

Returns the size of the list.

Returns:

The size of the list.

indexOf

protected int indexOf(Object object)

Returns the index of the specified object, or -1 if the object is not in the list.

Parameters:

object - the object.

Returns:

The index or -1.

equals

public boolean equals(Object obj)

Tests this list for equality with another object.

Overrides:

equals in class Object

Parameters:

obj - the object to test.

Returns:

A boolean.

hashCode

public int hashCode()

Returns a hash code value for the object.

Overrides:

hashCode in class Object

Returns:

the hashcode

clone

public Object clone()
             throws CloneNotSupportedException

Clones the list of objects. The objects in the list are not cloned, so this is method makes a 'shallow' copy of the list.

Overrides:

clone in class Object

Returns:

A clone.

Throws:

CloneNotSupportedException - if an item in the list does not support cloning.