Scala Reactive Programming

Scala Case class and object

Case class is a special kind of class in Scala. In Scala-based applications, we define all our Models or Data Models using Case classes, only because it gives us many benefits for free.

In Scala, we can define a Case class or Case object, using the case keyword:

scala> case class Weather(day:String, temperature:String) 
defined class Weather 

By default, Case class constructors have val parameters, meaning that, we cannot change the values of day and temperature, once they are created.

A Case object is also an object that is defined using the case modifier. When we use a Case object, we will get some benefits for free to avoid boilerplate code.

Here is an example:

scala> case object WeatherAlert defined object WeatherAlert ...