Realm Kotlin SDK/io.realm.kotlin.types/RealmMap

RealmMap

interface RealmMap<K, V> : MutableMap<K, V>

A RealmMap is used to map keys to values. RealmMaps cannot contain duplicate keys and each key can be mapped to at most one value. RealmMaps cannot have null keys but can have null values.

Similarly to RealmList and RealmSet, RealmDictionary properties cannot be nullable.

Most importantly, RealmMaps can only have String keys and should not be used to define properties in RealmObjects. If you need to use a Map<String, V> or a dictionary-type data structure for your model you should use RealmDictionary.

Parameters

the type of the keys stored in this map

the type of the values stored in this map

Inheritors

RealmDictionary

Properties

entries

abstract override val entries: MutableSet<MutableMap.MutableEntry<K, V>>

keys

abstract override val keys: MutableSet<K>

size

abstract val size: Int

values

abstract override val values: MutableCollection<V>

Functions

asFlow

abstract fun asFlow(keyPaths: List<String>? = null):

Flow

<MapChange<K, V>>

Observes changes to the RealmMap. The Flow will emit InitialMap once subscribed, and then UpdatedMap on every change to the dictionary. The flow will continue running indefinitely until canceled or until the parent object is deleted.

clear

abstract fun clear()

containsKey