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java.lang.Objectorg.springframework.util.AutoPopulatingList<E>
public class AutoPopulatingList<E>
Simple List wrapper class that allows for elements to be
automatically populated as they are requested. This is particularly
useful for data binding to Lists, allowing for elements
to be created and added to the List in a "just in time" fashion.
Note: This class is not thread-safe. To create a thread-safe version,
use the Collections.synchronizedList(java.util.List utility methods.
Inspired by LazyList from Commons Collections.
| Nested Class Summary | |
|---|---|
static interface |
AutoPopulatingList.ElementFactory<E>
Factory interface for creating elements for an index-based access data structure such as a List. |
static class |
AutoPopulatingList.ElementInstantiationException
Exception to be thrown from ElementFactory. |
| Constructor Summary | |
|---|---|
AutoPopulatingList(AutoPopulatingList.ElementFactory<E> elementFactory)
Creates a new AutoPopulatingList that is backed by a standard
ArrayList and creates new elements on demand using the supplied AutoPopulatingList.ElementFactory. |
|
AutoPopulatingList(java.lang.Class<? extends E> elementClass)
Creates a new AutoPopulatingList that is backed by a standard
ArrayList and adds new instances of the supplied element Class
to the backing List on demand. |
|
AutoPopulatingList(java.util.List<E> backingList,
AutoPopulatingList.ElementFactory<E> elementFactory)
Creates a new AutoPopulatingList that is backed by the supplied List
and creates new elements on demand using the supplied AutoPopulatingList.ElementFactory. |
|
AutoPopulatingList(java.util.List<E> backingList,
java.lang.Class<? extends E> elementClass)
Creates a new AutoPopulatingList that is backed by the supplied List
and adds new instances of the supplied element Class to the backing
List on demand. |
|
| Method Summary | ||
|---|---|---|
boolean |
add(E o)
|
|
void |
add(int index,
E element)
|
|
boolean |
addAll(java.util.Collection<? extends E> c)
|
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boolean |
addAll(int index,
java.util.Collection<? extends E> c)
|
|
void |
clear()
|
|
boolean |
contains(java.lang.Object o)
|
|
boolean |
containsAll(java.util.Collection c)
|
|
boolean |
equals(java.lang.Object other)
|
|
E |
get(int index)
Get the element at the supplied index, creating it if there is no element at that index. |
|
int |
hashCode()
|
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int |
indexOf(java.lang.Object o)
|
|
boolean |
isEmpty()
|
|
java.util.Iterator<E> |
iterator()
|
|
int |
lastIndexOf(java.lang.Object o)
|
|
java.util.ListIterator<E> |
listIterator()
|
|
java.util.ListIterator<E> |
listIterator(int index)
|
|
E |
remove(int index)
|
|
boolean |
remove(java.lang.Object o)
|
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boolean |
removeAll(java.util.Collection<?> c)
|
|
boolean |
retainAll(java.util.Collection<?> c)
|
|
E |
set(int index,
E element)
|
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int |
size()
|
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java.util.List<E> |
subList(int fromIndex,
int toIndex)
|
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java.lang.Object[] |
toArray()
|
|
|
toArray(T[] a)
|
|
| Methods inherited from class java.lang.Object |
|---|
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public AutoPopulatingList(java.lang.Class<? extends E> elementClass)
AutoPopulatingList that is backed by a standard
ArrayList and adds new instances of the supplied element Class
to the backing List on demand.
public AutoPopulatingList(java.util.List<E> backingList,
java.lang.Class<? extends E> elementClass)
AutoPopulatingList that is backed by the supplied List
and adds new instances of the supplied element Class to the backing
List on demand.
public AutoPopulatingList(AutoPopulatingList.ElementFactory<E> elementFactory)
AutoPopulatingList that is backed by a standard
ArrayList and creates new elements on demand using the supplied AutoPopulatingList.ElementFactory.
public AutoPopulatingList(java.util.List<E> backingList,
AutoPopulatingList.ElementFactory<E> elementFactory)
AutoPopulatingList that is backed by the supplied List
and creates new elements on demand using the supplied AutoPopulatingList.ElementFactory.
| Method Detail |
|---|
public void add(int index,
E element)
add in interface java.util.List<E>public boolean add(E o)
add in interface java.util.Collection<E>add in interface java.util.List<E>public boolean addAll(java.util.Collection<? extends E> c)
addAll in interface java.util.Collection<E>addAll in interface java.util.List<E>
public boolean addAll(int index,
java.util.Collection<? extends E> c)
addAll in interface java.util.List<E>public void clear()
clear in interface java.util.Collection<E>clear in interface java.util.List<E>public boolean contains(java.lang.Object o)
contains in interface java.util.Collection<E>contains in interface java.util.List<E>public boolean containsAll(java.util.Collection c)
containsAll in interface java.util.Collection<E>containsAll in interface java.util.List<E>public E get(int index)
get in interface java.util.List<E>public int indexOf(java.lang.Object o)
indexOf in interface java.util.List<E>public boolean isEmpty()
isEmpty in interface java.util.Collection<E>isEmpty in interface java.util.List<E>public java.util.Iterator<E> iterator()
iterator in interface java.lang.Iterable<E>iterator in interface java.util.Collection<E>iterator in interface java.util.List<E>public int lastIndexOf(java.lang.Object o)
lastIndexOf in interface java.util.List<E>public java.util.ListIterator<E> listIterator()
listIterator in interface java.util.List<E>public java.util.ListIterator<E> listIterator(int index)
listIterator in interface java.util.List<E>public E remove(int index)
remove in interface java.util.List<E>public boolean remove(java.lang.Object o)
remove in interface java.util.Collection<E>remove in interface java.util.List<E>public boolean removeAll(java.util.Collection<?> c)
removeAll in interface java.util.Collection<E>removeAll in interface java.util.List<E>public boolean retainAll(java.util.Collection<?> c)
retainAll in interface java.util.Collection<E>retainAll in interface java.util.List<E>
public E set(int index,
E element)
set in interface java.util.List<E>public int size()
size in interface java.util.Collection<E>size in interface java.util.List<E>
public java.util.List<E> subList(int fromIndex,
int toIndex)
subList in interface java.util.List<E>public java.lang.Object[] toArray()
toArray in interface java.util.Collection<E>toArray in interface java.util.List<E>public <T> T[] toArray(T[] a)
toArray in interface java.util.Collection<E>toArray in interface java.util.List<E>public boolean equals(java.lang.Object other)
equals in interface java.util.Collection<E>equals in interface java.util.List<E>equals in class java.lang.Objectpublic int hashCode()
hashCode in interface java.util.Collection<E>hashCode in interface java.util.List<E>hashCode in class java.lang.Object
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