trait TransformPicklers extends AnyRef
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def
transformPickler[A, B](transformFrom: (B) ⇒ A)(transformTo: (A) ⇒ B)(implicit p: Pickler[B]): Pickler[A]
Create a transforming pickler that takes an object of type
A
and transforms it intoB
, which is then pickled.Create a transforming pickler that takes an object of type
A
and transforms it intoB
, which is then pickled. Similarly aB
is unpickled and then transformed back intoA
.This allows for easy creation of picklers for (relatively) simple classes. For example
// transform Date into Long and back implicit val datePickler = transformPickler((t: Long) => new java.util.Date(t))(_.getTime)
Note that parameters are in reversed order.
- A
Type of the original object
- B
Type for the object used for pickling
- transformFrom
Function that takes
B
and transforms it intoA
- transformTo
Function that takes
A
and transforms it intoB
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