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ReadWriteProperty

kotlin-stdlib / kotlin.properties / ReadWriteProperty

Platform and version requirements: JVM (1.0), JS (1.0), Native (1.0)

interface ReadWriteProperty<in T, V> : ReadOnlyProperty<T, V>

Base interface that can be used for implementing property delegates of read-write properties.

This is provided only for convenience; you don't have to extend this interface as long as your property delegate has methods with the same signatures.

Parameters

T - the type of object which owns the delegated property.

V - the type of the property value.

Functions

Platform and version requirements: JVM (1.0), JS (1.0), Native (1.0)

getValue

Returns the value of the property for the given object.

abstract operator fun getValue(
    thisRef: T, 
    property: KProperty<*>
): V

Platform and version requirements: JVM (1.0), JS (1.0), Native (1.0)

setValue

Sets the value of the property for the given object.

abstract operator fun setValue(
    thisRef: T, 
    property: KProperty<*>, 
    value: V)

Inheritors

Platform and version requirements: JVM (1.0), JS (1.0), Native (1.0)

ObservableProperty

Implements the core logic of a property delegate for a read/write property that calls callback functions when changed.

abstract class ObservableProperty<V> : 
    ReadWriteProperty<Any?, V>

© 2010–2020 JetBrains s.r.o. and Kotlin Programming Language contributors
Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.properties/-read-write-property/index.html