Kotlin Blueprints

Property delegate

JavaFX has a special type called Property. It maintains a value internally and notifies listeners of its changes. It is unique to JavaFX because it supports binding operations and will notify the UI when it changes. 

The JavaFX Property delegate is different from Kotlin's standard property delegation. Don't confuse it with the standard property delegation of Kotlin.

Let's look at the following example, where we will define a JavaFX property of type String and delegate the getters and setters directly from the property:

    class Meaning {      val wordProperty = SimpleStringProperty()      var word by wordProperty    }