Please explain use of Option's orNull method

Question

Scala\'s Option class has an orNull method, whose signature is shown below.

orNull [A1 >: A](implicit ev : <:<[Null, A1]) : A1

Answer 1

Re : 'how' is this used - one place we are finding this useful is when dealing with java api mappings where null is commonplace, e.g. on jdbc prepared statements to nullable sql columns. The Optional internal model fields can be mapped:

stmt.setDate("field", myModel.myDateField.orNull)

Instead of the more verbose:

stmt.setDate("field", myModel.myDateField.getOrElse(null))