It's impossible to use abstract class like a custom mapper

[gderboux]

When a mapper use a custom mapper, the custom mapper constructor is call in the mapper constructor. If custom mapper is in an abstract class there is an error because it's impossible to instantiate an abstract class.

Is there any issue ?

Thanks for V0.15

[slemesle]

In fact if the mapper itself is an abstract class, it will be used as a custom mapper for non abstract methods.
So there is not much to do to allow the use of an abstract custom mapper.

[slemesle]

That does work now.

[gderboux]

Thank you for your quick reply :)