As discussed on the mailing-list, enums could be used in the package transform
- An enumeration FORWARD, INVERSE will be created to specify whether the inverse transform is to be computed. This will replace the pair transform/inverseTransform
- An enumeration STANDARD, ORTHOGONAL will be introduced (where relevant) in each transform class, in order to specify the normalization that should be used. Then the factory methods create()/createOrthogonal() will be replaced by a parameter passed to the constructor, which will be made public.