ObservableList

class ObservableList<T>(list: MutableList<T>, listener: (MutableList<T>) -> Unit) : MutableList<T> 

A MutableList wrapper that invokes listener with the underlying list after every mutating operation. Used by listField-style NBTHolder delegates to detect changes and persist/sync them.

Constructors

ObservableList

constructor(list: MutableList<T>, listener: (MutableList<T>) -> Unit)

Properties

size

open override val size: Int

Functions

add

open override fun add(element: T): Boolean

open override fun add(index: Int, element: T)

addAll

open override fun addAll(elements: Collection<T>): Boolean

open override fun addAll(index: Int, elements: Collection<T>): Boolean

addFirst

open override fun addFirst(e: T)

addLast

open override fun addLast(e: T)

clear

open override fun clear()

contains

open operator override fun contains(element: T): Boolean

containsAll

open override fun containsAll(elements: Collection<T>): Boolean

get

open operator override fun get(index: Int): T

indexOf

open override fun indexOf(element: T): Int

isEmpty

open override fun isEmpty(): Boolean

iterator

open operator override fun iterator(): MutableIterator<T>

lastIndexOf

open override fun lastIndexOf(element: T): Int

listIterator

open override fun listIterator(): MutableListIterator<T>

open override fun listIterator(index: Int): MutableListIterator<T>

remove

open override fun remove(element: T): Boolean

removeAll

open override fun removeAll(elements: Collection<T>): Boolean

removeAt

open override fun removeAt(index: Int): T

removeFirst

open override fun removeFirst(): T

removeIf

open override fun removeIf(filter: Predicate<in T>): Boolean

removeLast

open override fun removeLast(): T

replaceAll

open override fun replaceAll(operator: UnaryOperator<T>)

retainAll

open override fun retainAll(elements: Collection<T>): Boolean

set

open operator override fun set(index: Int, element: T): T

setAll

fun setAll(elements: Collection<T>)

Replaces the whole contents with elements, notifying listener exactly once.

The one bulk write. Every other mutator here notifies per operation, which for a persisted field means a whole-list encode per element touched - so a caller rewriting n entries one at a time pays n encodes of n entries, and the cost of holding a list grows with the square of its length. A caller that already knows the entire next state says so through this instead: copy the list out, work on the copy, hand it back in one call.

sort

open override fun sort(c: Comparator<in T>?)

subList

open override fun subList(fromIndex: Int, toIndex: Int): MutableList<T>