kotlin-stdlib/kotlin.collections/AbstractMutableMap

AbstractMutableMap

expect abstract class AbstractMutableMap<K, V> : MutableMap<K, V>

Provides a skeletal implementation of the MutableMap interface.

The implementor is required to implement entries property, which should return mutable set of map entries, and put function.

Since Kotlin

1.3

actual abstract class AbstractMutableMap<K, V> : AbstractMap<K, V> , MutableMap<K, V>

Provides a skeletal implementation of the MutableMap interface.

The implementor is required to implement entries property, which should return mutable set of map entries, and put function.

Since Kotlin

1.1

actual abstract class AbstractMutableMap<K, V> : AbstractMap<K, V> , MutableMap<K, V>

Provides a skeletal implementation of the MutableMap interface.

The implementor is required to implement entries property, which should return mutable set of map entries, and put function.

actual abstract class AbstractMutableMap<K, V> : AbstractMap<K, V> , MutableMap<K, V>

Provides a skeletal implementation of the MutableMap interface.

The implementor is required to implement entries property, which should return mutable set of map entries, and put function.

Since Kotlin

1.1

Parameters

the type of map keys. The map is invariant in its key type.

the type of map values. The map is invariant in its value type.

the type of map keys. The map is invariant in its key type.

the type of map values. The map is invariant in its value type.

the type of map keys. The map is invariant in its key type.

the type of map values. The map is invariant in its value type.

the type of map keys. The map is invariant in its key type.

the type of map values. The map is invariant in its value type.

Functions

clear

expect open override fun clear()

abstract fun clear()

Removes all elements from this map.

actual open override fun clear()

Removes all elements from this map.

actual open override fun clear()

Removes all elements from this map.

clone

open fun clone(): Any

compute

open fun compute(p0: K, p1: BiFunction<in K, in V?, out V?>): V?

computeIfAbsent

open fun computeIfAbsent(p0: K, p1: Function<in K, out V>): V

computeIfPresent

open fun computeIfPresent(p0: K, p1: BiFunction<in K, in V, out V?>): V?

containsKey

expect open override fun containsKey(key: K): Boolean

abstract fun containsKey(key: K): Boolean

Returns true if the map contains the specified key.

open override fun containsKey(key: K): Boolean

Returns true if the map contains the specified key.

open override fun containsKey(key: K): Boolean

Returns true if the map contains the specified key.

containsValue

expect open override fun containsValue(value: V): Boolean

abstract fun containsValue(value: V): Boolean

Returns true if the map maps one or more keys to the specified value.

open override fun containsValue(value: V): Boolean

Returns true if the map maps one or more keys to the specified value.

open override fun containsValue(value: V): Boolean

Returns true if the map maps one or more keys to the specified value.

equals

open operator override fun equals(other: Any?): Boolean

Compares this map with other instance with the ordered structural equality.

open operator override fun equals(other: Any?): Boolean

Compares this map with other instance with the ordered structural equality.

forEach

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

get

expect open operator override fun get(key: K): V?

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

Returns the value corresponding to the given key, or null if such a key is not present in the map.

open operator override fun get(key: K): V?

Returns the value corresponding to the given key, or null if such a key is not present in the map.

open operator override fun get(key: K): V?

Returns the value corresponding to the given key, or null if such a key is not present in the map.

getOrDefault

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

Returns the value corresponding to the given key, or defaultValue if such a key is not present in the map.

Since Kotlin

1.1

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

Returns the value corresponding to the given key, or defaultValue if such a key is not present in the map.

Since Kotlin

1.1

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

Returns the value corresponding to the given key, or defaultValue if such a key is not present in the map.

Since Kotlin

1.1

hashCode

open override fun hashCode(): Int

Returns the hash code value for this map.

open override fun hashCode(): Int

Returns the hash code value for this map.

isEmpty

expect open override fun isEmpty(): Boolean

abstract fun isEmpty(): Boolean

Returns true if the map is empty (contains no elements), false otherwise.

open override fun isEmpty(): Boolean

Returns true if the map is empty (contains no elements), false otherwise.

open override fun isEmpty(): Boolean

Returns true if the map is empty (contains no elements), false otherwise.

merge

open fun merge(p0: K, p1: V, p2: BiFunction<in V, in V, out V?>): V?

put

expect abstract override fun put(key: K, value: V): V?

Associates the specified value with the specified key in the map.

actual abstract override fun put(key: K, value: V): V?

Associates the specified value with the specified key in the map.

actual abstract override fun put(key: K, value: V): V?

Associates the specified value with the specified key in the map.

actual abstract override fun put(key: K, value: V): V?

Associates the specified value with the specified key in the map.

putAll

expect open override fun putAll(from: Map<out K, V>)

abstract fun putAll(from: Map<out K, V>)

Updates this map with key/value pairs from the specified map from.

actual open override fun putAll(from: Map<out K, V>)

Updates this map with key/value pairs from the specified map from.

actual open override fun putAll(from: Map<out K, V>)

Updates this map with key/value pairs from the specified map from.

putIfAbsent

open fun putIfAbsent(p0: K, p1: V): V?

remove

expect open override fun remove(key: K): V?

abstract fun remove(key: K): V?

Removes the specified key and its corresponding value from this map.

open fun remove(key: K, value: V): Boolean

Removes the entry for the specified key only if it is mapped to the specified value.

Since Kotlin

1.1

actual open override fun remove(key: K): V?

Removes the specified key and its corresponding value from this map.

open fun remove(key: K, value: V): Boolean

Removes the entry for the specified key only if it is mapped to the specified value.

Since Kotlin

1.1

actual open override fun remove(key: K): V?

Removes the specified key and its corresponding value from this map.

open fun remove(key: K, value: V): Boolean

Removes the entry for the specified key only if it is mapped to the specified value.

Since Kotlin

1.1

replace

open fun replace(p0: K, p1: V): V?

open fun replace(p0: K, p1: V, p2: V): Boolean

replaceAll

open fun replaceAll(p0: BiFunction<in K, in V, out V>)

toString

open override fun toString(): String

fun toString(entry: Map.Entry<K, V>): String

open override fun toString(): String

fun toString(entry: Map.Entry<K, V>): String

Properties

entries

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

Returns a MutableSet of all key/value pairs in this map.

entries

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

Returns a read-only Set of all key/value pairs in this map.

entries

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

Returns a read-only Set of all key/value pairs in this map.

entries

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

keys

abstract override val keys: MutableSet<K>

Returns a MutableSet of all keys in this map.

keys

expect open override val keys: MutableSet<K>

actual open override val keys: MutableSet<K>

Returns a read-only Set of all keys in this map.

actual open override val keys: MutableSet<K>

Returns a read-only Set of all keys in this map.

keySet

val keySet: MutableSet<K>

size

abstract val size: Int

Returns the number of key/value pairs in the map.

size

open override val size: Int

Returns the number of key/value pairs in the map.

size

open override val size: Int

Returns the number of key/value pairs in the map.

size

expect open override val size: Int

values

abstract override val values: MutableCollection<V>

Returns a MutableCollection of all values in this map. Note that this collection may contain duplicate values.

values

val values: MutableCollection<V>

values

expect open override val values: MutableCollection<V>

actual open override val values: MutableCollection<V>

Returns a read-only Collection of all values in this map.

actual open override val values: MutableCollection<V>

Returns a read-only Collection of all values in this map.

Inheritors

HashMap