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:

java.io.Serializable, java.lang.Iterable<ElementType>, java.util.Collection<ElementType>, java.util.List<ElementType>

@NotThreadSafe
public class LazyList<ElementType>
extends java.lang.Object
implements java.util.List<ElementType>, java.io.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 java.util.List<ElementType>	delegate Delegate list.
private static long	serialVersionUID Serial version UID.

Constructor Summary

Constructors

Constructor and Description
LazyList()

Method Summary

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.List

replaceAll, sort, spliterator

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable

forEach

Field Detail

serialVersionUID

private static final long serialVersionUID

Serial version UID.

See Also:

Constant Field Values

delegate

private java.util.List<ElementType> delegate

Delegate list.

Constructor Detail

LazyList

public LazyList()

Method Detail

add

public boolean add(ElementType item)

Specified by:

add in interface java.util.Collection<ElementType>

Specified by:

add in interface java.util.List<ElementType>

add

public void add(int index,
                ElementType element)

Specified by:

add in interface java.util.List<ElementType>

addAll

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

Specified by:

addAll in interface java.util.Collection<ElementType>

Specified by:

addAll in interface java.util.List<ElementType>

addAll

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

Specified by:

addAll in interface java.util.List<ElementType>

clear

public void clear()

Specified by:

clear in interface java.util.Collection<ElementType>

Specified by:

clear in interface java.util.List<ElementType>

contains

public boolean contains(java.lang.Object element)

Specified by:

contains in interface java.util.Collection<ElementType>

Specified by:

contains in interface java.util.List<ElementType>

containsAll

public boolean containsAll(java.util.Collection<?> collections)

Specified by:

containsAll in interface java.util.Collection<ElementType>

Specified by:

containsAll in interface java.util.List<ElementType>

get

public ElementType get(int index)

Specified by:

get in interface java.util.List<ElementType>

indexOf

public int indexOf(java.lang.Object element)

Specified by:

indexOf in interface java.util.List<ElementType>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface java.util.Collection<ElementType>

Specified by:

isEmpty in interface java.util.List<ElementType>

iterator

public java.util.Iterator<ElementType> iterator()

Specified by:

iterator in interface java.lang.Iterable<ElementType>

Specified by:

iterator in interface java.util.Collection<ElementType>

Specified by:

iterator in interface java.util.List<ElementType>

lastIndexOf

public int lastIndexOf(java.lang.Object element)

Specified by:

lastIndexOf in interface java.util.List<ElementType>

listIterator

public java.util.ListIterator<ElementType> listIterator()

Specified by:

listIterator in interface java.util.List<ElementType>

listIterator

public java.util.ListIterator<ElementType> listIterator(int index)

Specified by:

listIterator in interface java.util.List<ElementType>

remove

public boolean remove(java.lang.Object element)

Specified by:

remove in interface java.util.Collection<ElementType>

Specified by:

remove in interface java.util.List<ElementType>

remove

public ElementType remove(int index)

Specified by:

remove in interface java.util.List<ElementType>

removeAll

public boolean removeAll(java.util.Collection<?> collection)

Specified by:

removeAll in interface java.util.Collection<ElementType>

Specified by:

removeAll in interface java.util.List<ElementType>

retainAll

public boolean retainAll(java.util.Collection<?> collection)

Specified by:

retainAll in interface java.util.Collection<ElementType>

Specified by:

retainAll in interface java.util.List<ElementType>

set

public ElementType set(int index,
                       ElementType element)

Specified by:

set in interface java.util.List<ElementType>

size

public int size()

Specified by:

size in interface java.util.Collection<ElementType>

Specified by:

size in interface java.util.List<ElementType>

subList

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

Specified by:

subList in interface java.util.List<ElementType>

toArray

public java.lang.Object[] toArray()

Specified by:

toArray in interface java.util.Collection<ElementType>

Specified by:

toArray in interface java.util.List<ElementType>

toArray

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

Specified by:

toArray in interface java.util.Collection<ElementType>

Specified by:

toArray in interface java.util.List<ElementType>

buildList

protected java.util.List<ElementType> buildList()

Builds an appropriate delegate for this list.

Returns:

delegate for this list

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

hashCode

public int hashCode()

Specified by:

hashCode in interface java.util.Collection<ElementType>

Specified by:

hashCode in interface java.util.List<ElementType>

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Specified by:

equals in interface java.util.Collection<ElementType>

Specified by:

equals in interface java.util.List<ElementType>

Overrides:

equals in class java.lang.Object