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scalacompanion-object

"Static" field in Scala companion object

Can I check the value of field in companion object without referring to class' actual object?

I'd like to store a static counter, increase it everytime new object of that class is created and be able to check it's value without using object itself, is this possible?

Solution

  • Is this what you want?

       object Foo {
        private var counter = 0
        private def increment = {
           counter += 1; 
           counter
        }
    }

    class Foo {
        val i = Foo.increment
        println(i)
    }