I'm trying to get my head round the generic signature of the decorate() method, for example in TransformedCollection:
public static <E> Collection<E> decorate(Collection<E> coll, Transformer<? super E, ? extends E> transformer) This does not seem to allow one to transform String into Integer (or vice-versa) without ignoring type-safety warnings. I would expect to be able to do something like: Collection<String> cs = ... Transformer<String,Integer> s2i = ... Collection<Integer> ci = TransformedCollection(cs, s2i); But the signature does not allow this. I think the signature should probably look like: public static <I, O> Collection<O> decorate(Collection<I> coll, Transformer<I, O> transformer) where I and O stand for Input and Output, as in the Transformer API. Or have I misunderstood the purpose of the method? --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org For additional commands, e-mail: dev-h...@commons.apache.org
