Below is my case classes. How to initialise case class child in scala?
// case class
case class parent(id: String, name: String, rNo: Int,
child: Option[Child])
case class Child(cid: String, Ctype: String,
group_category_id: String,
unlock_at: String, due_at: String)
val a: Child = if (x.child != None) { x.child.get } else { null }
If I declare as null, it will throw NullPointerException
in case of else condition. How to solve that?
I don't think you should unwrap the Option[Child]
so that it would be null
if it was empty. You shouldn't use nulls when you write idiomatic Scala. I would keep it in an Option
and use the map
and flatMap
methods on it, to access the child if it exists.
However, if you really want to, you can do it like this:
val a: Child = x.child.getOrElse(null)
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