On Mon, Oct 21, 2019 at 2:53 AM Emmanuel Bourg <ebo...@apache.org> wrote:
> Le 17/10/2019 à 19:45, Gary Gregory a écrit : > > > It seems like org.apache.commons.collections4.Predicate<T> can/should be > > replaced by java.util.function.Function<T, R> > > Did we consider modifying collections4 such that Predicate extends > Function? That would ease the transition to the Java 8 types. > Happy Monday to all, Since the next version is 2.0, we can break backward compatibility and use java.util.function directly. See git master where there is only one remaining dependency on Commons Collections. See also https://issues.apache.org/jira/browse/BEANUTILS-527 for a few more migratory details. I am thinking we can consider making the remaining dependency a private static class or, implement the feature differently. I am looking for opinions here... The other question is what to do with Collection's Transformer class. There at the very least we can make it a subtype of Java's own Function. We can also just deprecate Transformer in favor of Function. It depends on how much value there is in a functional interface called "Transformer" vs the more general "Function". I think in the end, Transformer should be deprecated in favor of Function. Thoughts? Thank you! Gary > > Emmanuel Bourg > > --------------------------------------------------------------------- > To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org > For additional commands, e-mail: dev-h...@commons.apache.org > >
