FlowMap

interface FlowMap<K : Any, V : Any> : MapFlow<K, V> , Map<K, V> (source)

Exposes the current state and future mutations to specific keys (via valueFlow), or the map as a whole (via asFlow).

Properties

abstract val keys: Set<K>

abstract val size: Int

abstract fun asFlow(predicate: (K, V) -> Boolean? = null): Flow<MapEvent<K, V>>

A Flow of events that can be used to reconstitute the current and future state of the FlowMap.

A Flow that emits a FlowMapStreamEvent to represent the state and its mutations over time.

abstract fun asMap(): PersistentMap<K, V>

A copy of the map at this point in time

abstract fun containsKey(key: K): Boolean

abstract fun containsValue(value: V): Boolean

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

abstract fun isEmpty(): Boolean

Creates a copy of the provided map as a new MutableFlowMap.

abstract fun valueFlow(key: K): Flow<V?>

A Flow of the latest value for the provided key or null if no value is present.