rd-core/com.jetbrains.rd.util.reactive/IViewableMap

IViewableMap

interface IViewableMap<K : Any, out V : Any> : Map<K, V> , IViewable<Map.Entry<K, V>> , ISource<IViewableMap.Event<K, V>>

A map allowing its contents to be observed.

Types

sealed class Event<K, out V>

Represents an addition, update or removal of an element in the map.

Functions

abstract fun advise(lifetime: Lifetime, handler: (IViewableMap.Event<K, V>) -> Unit)

Adds an event subscription. Every time an event occurs, the handler is called, receiving an instance of the event. The subscription is removed when the given lifetime expires.

adviseAddRemove

open fun adviseAddRemove(lifetime: Lifetime, handler: (AddRemove, K, V) -> Unit)

Adds a subscription to additions and removals of map elements. When a map element is updated, the handler is called twice: to report the removal of the old element and the addition of the new one.

abstract fun containsKey(key: K): Boolean

abstract fun containsValue(value: V): Boolean

open fun forEach(p0: BiConsumer<in K, in V>)

abstract operator fun get(key: K): V?

open fun getOrDefault(key: K, defaultValue: V): V

abstract fun isEmpty(): Boolean

open override fun view(lifetime: Lifetime, handler: (Lifetime, Map.Entry<K, V>) -> Unit)

Adds a subscription to changes of the contents of the map.

open fun view(lifetime: Lifetime, handler: (Lifetime, K, V) -> Unit)

Adds a subscription to changes of the contents of the map, with the handler receiving keys and values as separate parameters.

Properties

abstract val change: ISource<IViewableMap.Event<K, V>>

abstract val entries: Set<Map.Entry<K, V>>

abstract val keys: Set<K>

abstract val size: Int

abstract val values: Collection<V>

Inheritors

IAsyncViewableMap

IMutableViewableMap

Extensions

fun <K : Any, V : Any> IViewableMap<K, V>.createIsEmpty(lifetime: Lifetime): IPropertyView<Boolean>

fun <K : Any, V : Any> IViewableMap<K, V>.createIsEmpty(): IPropertyView<Boolean>

createIsNotEmpty

fun <K : Any, V : Any> IViewableMap<K, V>.createIsNotEmpty(lifetime: Lifetime): IPropertyView<Boolean>

fun <K : Any, V : Any> IViewableMap<K, V>.createIsNotEmpty(): IPropertyView<Boolean>