Attributes

Immutable type safe property bag

Properties

abstract val isEmpty: Boolean

Flag indicating if attributes is empty

abstract val keys: Set<AttributeKey<*>>

Get a set of all the keys

Flag indicating if attributes is not empty

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

Check if an attribute with the specified key exists

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

Get a value of the attribute for the specified key or null

Gets a value of the attribute for the specified key or throws an IllegalStateException if key does not exist

Returns a new MutableAttributes instance with elements from this set of attributes.