net.shibboleth.utilities.java.support.collection

Class LazyList<ElementType>

java.lang.Object

net.shibboleth.utilities.java.support.collection.LazyList<ElementType>

Type Parameters:

ElementType - type of elements within the list

All Implemented Interfaces:

Serializable, Iterable<ElementType>, Collection<ElementType>, List<ElementType>

@NotThreadSafe
public class LazyList<ElementType>
extends Object
implements List<ElementType>, Serializable

A list that is lazy initialized. This list takes very little memory when storing zero or one item.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
private List<ElementType>	delegate Delegate list.
private static long	serialVersionUID Serial version UID.

Constructor Summary

Constructors

Constructor and Description
LazyList()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	add(ElementType item)
void	add(int index, ElementType element)
boolean	addAll(Collection<? extends ElementType> collection)
boolean	addAll(int index, Collection<? extends ElementType> collection)
protected List<ElementType>	buildList() Builds an appropriate delegate for this list.
void	clear()
boolean	contains(Object element)
boolean	containsAll(Collection<?> collections)
boolean	equals(Object obj)
ElementType	get(int index)
int	hashCode()
int	indexOf(Object element)
boolean	isEmpty()
Iterator<ElementType>	iterator()
int	lastIndexOf(Object element)
ListIterator<ElementType>	listIterator()
ListIterator<ElementType>	listIterator(int index)
ElementType	remove(int index)
boolean	remove(Object element)
boolean	removeAll(Collection<?> collection)
boolean	retainAll(Collection<?> collection)
ElementType	set(int index, ElementType element)
int	size()
List<ElementType>	subList(int fromIndex, int toIndex)
Object[]	toArray()
<T> T[]	toArray(T[] type)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

Serial version UID.

See Also:

Constant Field Values

delegate

private List<ElementType> delegate

Delegate list.

Constructor Detail

LazyList

public LazyList()

Method Detail

add

public boolean add(ElementType item)

Specified by:

add in interface Collection<ElementType>

Specified by:

add in interface List<ElementType>

add

public void add(int index,
       ElementType element)

Specified by:

add in interface List<ElementType>

addAll

public boolean addAll(Collection<? extends ElementType> collection)

Specified by:

addAll in interface Collection<ElementType>

Specified by:

addAll in interface List<ElementType>

addAll

public boolean addAll(int index,
             Collection<? extends ElementType> collection)

Specified by:

addAll in interface List<ElementType>

clear

public void clear()

Specified by:

clear in interface Collection<ElementType>

Specified by:

clear in interface List<ElementType>

contains

public boolean contains(Object element)

Specified by:

contains in interface Collection<ElementType>

Specified by:

contains in interface List<ElementType>

containsAll

public boolean containsAll(Collection<?> collections)

Specified by:

containsAll in interface Collection<ElementType>

Specified by:

containsAll in interface List<ElementType>

get

public ElementType get(int index)

Specified by:

get in interface List<ElementType>

indexOf

public int indexOf(Object element)

Specified by:

indexOf in interface List<ElementType>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Collection<ElementType>

Specified by:

isEmpty in interface List<ElementType>

iterator

public Iterator<ElementType> iterator()

Specified by:

iterator in interface Iterable<ElementType>

Specified by:

iterator in interface Collection<ElementType>

Specified by:

iterator in interface List<ElementType>

lastIndexOf

public int lastIndexOf(Object element)

Specified by:

lastIndexOf in interface List<ElementType>

listIterator

public ListIterator<ElementType> listIterator()

Specified by:

listIterator in interface List<ElementType>

listIterator

public ListIterator<ElementType> listIterator(int index)

Specified by:

listIterator in interface List<ElementType>

remove

public boolean remove(Object element)

Specified by:

remove in interface Collection<ElementType>

Specified by:

remove in interface List<ElementType>

remove

public ElementType remove(int index)

Specified by:

remove in interface List<ElementType>

removeAll

public boolean removeAll(Collection<?> collection)

Specified by:

removeAll in interface Collection<ElementType>

Specified by:

removeAll in interface List<ElementType>

retainAll

public boolean retainAll(Collection<?> collection)

Specified by:

retainAll in interface Collection<ElementType>

Specified by:

retainAll in interface List<ElementType>

set

public ElementType set(int index,
              ElementType element)

Specified by:

set in interface List<ElementType>

size

public int size()

Specified by:

size in interface Collection<ElementType>

Specified by:

size in interface List<ElementType>

subList

public List<ElementType> subList(int fromIndex,
                        int toIndex)

Specified by:

subList in interface List<ElementType>

toArray

public Object[] toArray()

Specified by:

toArray in interface Collection<ElementType>

Specified by:

toArray in interface List<ElementType>

toArray

public <T> T[] toArray(T[] type)

Specified by:

toArray in interface Collection<ElementType>

Specified by:

toArray in interface List<ElementType>

buildList

protected List<ElementType> buildList()

Builds an appropriate delegate for this list.

Returns:

delegate for this list

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Specified by:

hashCode in interface Collection<ElementType>

Specified by:

hashCode in interface List<ElementType>

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Specified by:

equals in interface Collection<ElementType>

Specified by:

equals in interface List<ElementType>

Overrides:

equals in class Object