spring-framework / org.springframework.util / AutoPopulatingList

AutoPopulatingList

open class AutoPopulatingList<E : Any> : MutableList<E>, Serializable

Simple List wrapper class that allows for elements to be automatically populated as they are requested. This is particularly useful for data binding to List, 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 java.util.Collections#synchronizedList utility methods.

Inspired by LazyList from Commons Collections.

Author
Rob Harrop

Author
Juergen Hoeller

Since
2.0

Constructors

<init>

AutoPopulatingList(elementClass: Class<out E>)

Creates a new AutoPopulatingList that is backed by a standard ArrayList and adds new instances of the supplied Class to the backing List on demand.

AutoPopulatingList(backingList: MutableList<E>, elementClass: Class<out E>)

Creates a new AutoPopulatingList that is backed by the supplied List and adds new instances of the supplied Class to the backing List on demand.

AutoPopulatingList(elementFactory: ElementFactory)

Creates a new AutoPopulatingList that is backed by a standard ArrayList and creates new elements on demand using the supplied ElementFactory.

AutoPopulatingList(backingList: MutableList<E>, elementFactory: ElementFactory)

Creates a new AutoPopulatingList that is backed by the supplied List and creates new elements on demand using the supplied ElementFactory.

Properties

size	`open val size: Int`

Functions

add	`open fun add(index: Int, element: E): Unit` `open fun add(element: E): Boolean`
addAll	`open fun addAll(elements: Collection<E>): Boolean` `open fun addAll(index: Int, elements: Collection<E>): Boolean`
clear	`open fun clear(): Unit`
contains	`open fun contains(element: E): Boolean`
containsAll	`open fun containsAll(elements: Collection<E>): Boolean`
equals	`open fun equals(other: Any?): Boolean`
get	`open fun get(index: Int): E` Get the element at the supplied index, creating it if there is no element at that index.
hashCode	`open fun hashCode(): Int`
indexOf	`open fun indexOf(element: E): Int`
isEmpty	`open fun isEmpty(): Boolean`
iterator	`open fun iterator(): MutableIterator<E>`
lastIndexOf	`open fun lastIndexOf(element: E): Int`
listIterator	`open fun listIterator(): MutableListIterator<E>` `open fun listIterator(index: Int): MutableListIterator<E>`
remove	`open fun remove(element: E): Boolean`
removeAll	`open fun removeAll(elements: Collection<E>): Boolean`
removeAt	`open fun removeAt(index: Int): E`
retainAll	`open fun retainAll(elements: Collection<E>): Boolean`
set	`open fun set(index: Int, element: E): E`
subList	`open fun subList(fromIndex: Int, toIndex: Int): MutableList<E>`
toArray	`open fun toArray(): Array<Any>` `open fun <T : Any> toArray(a: Array<T>): Array<T>`