Attributes

Map of attributes accessible by AttributeKey in a typed manner

Functions

abstract fun <T : Any> computeIfAbsent(key: AttributeKey<T>, block: () -> T): T

Gets a value of the attribute for the specified key, or calls supplied block to compute its value

abstract operator fun contains(key: AttributeKey<*>): Boolean

Checks if an attribute with the specified key exists

open operator fun <T : Any> get(key: AttributeKey<T>): T

Gets a value of the attribute for the specified key, or throws an exception if an attribute doesn't exist

abstract fun <T : Any> getOrNull(key: AttributeKey<T>): T?

Gets a value of the attribute for the specified key, or return null if an attribute doesn't exist

abstract fun <T : Any> put(key: AttributeKey<T>, value: T)

Creates or changes an attribute with the specified key using value

abstract fun <T : Any> remove(key: AttributeKey<T>)

Removes an attribute with the specified key

open fun <T : Any> take(key: AttributeKey<T>): T

Removes an attribute with the specified key and returns its current value, throws an exception if an attribute doesn't exist

Removes an attribute with the specified key and returns its current value, returns null if an attribute doesn't exist

Returns List of all AttributeKey instances in this map

Adds all attributes from another collection, replacing original values if any.