Package org.jfree.util
Class AbstractObjectList
- java.lang.Object
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- org.jfree.util.AbstractObjectList
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- All Implemented Interfaces:
java.io.Serializable
,java.lang.Cloneable
- Direct Known Subclasses:
BooleanList
,ObjectList
,PaintList
,ShapeList
,StrokeList
public class AbstractObjectList extends java.lang.Object implements java.lang.Cloneable, java.io.Serializable
A list of objects that can grow as required.- Author:
- David Gilbert
- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description static int
DEFAULT_INITIAL_CAPACITY
The default initial capacity of the list.
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Constructor Summary
Constructors Modifier Constructor 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.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
clear()
Clears the list.java.lang.Object
clone()
Clones the list of objects.boolean
equals(java.lang.Object obj)
Tests this list for equality with another object.protected java.lang.Object
get(int index)
Returns the object at the specified index, if there is one, ornull
.int
hashCode()
Returns a hash code value for the object.protected int
indexOf(java.lang.Object object)
Returns the index of the specified object, or -1 if the object is not in the list.protected void
set(int index, java.lang.Object object)
Sets an object reference (overwriting any existing object).int
size()
Returns the size of the list.
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Field Detail
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DEFAULT_INITIAL_CAPACITY
public static final int DEFAULT_INITIAL_CAPACITY
The default initial capacity of the list.- See Also:
- Constant Field Values
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Constructor Detail
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AbstractObjectList
protected AbstractObjectList()
Creates a new list with the default initial capacity.
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AbstractObjectList
protected AbstractObjectList(int initialCapacity)
Creates a new list.- Parameters:
initialCapacity
- the initial capacity.
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AbstractObjectList
protected AbstractObjectList(int initialCapacity, int increment)
Creates a new list.- Parameters:
initialCapacity
- the initial capacity.increment
- the increment.
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Method Detail
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get
protected java.lang.Object get(int index)
Returns the object at the specified index, if there is one, ornull
.- Parameters:
index
- the object index.- Returns:
- The object or
null
.
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set
protected void set(int index, java.lang.Object object)
Sets an object reference (overwriting any existing object).- Parameters:
index
- the object index.object
- the object (null
permitted).
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clear
public void clear()
Clears the list.
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size
public int size()
Returns the size of the list.- Returns:
- The size of the list.
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indexOf
protected int indexOf(java.lang.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.
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equals
public boolean equals(java.lang.Object obj)
Tests this list for equality with another object.- Overrides:
equals
in classjava.lang.Object
- Parameters:
obj
- the object to test.- Returns:
- A boolean.
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hashCode
public int hashCode()
Returns a hash code value for the object.- Overrides:
hashCode
in classjava.lang.Object
- Returns:
- the hashcode
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clone
public java.lang.Object clone() throws java.lang.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 classjava.lang.Object
- Returns:
- A clone.
- Throws:
java.lang.CloneNotSupportedException
- if an item in the list does not support cloning.
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