Seems a nice Math exercise. if you have the min, the max, the count and the sum, how to re-create an IntSummaryStatistics knowing you can only uses accept ?
What about calling accept() with the min, the max and (count - 2) times the (sum - min - max) / (count - 2) ? Obviously, if the remainder is not empty, you have to correct the error. Rémi ----- Mail original ----- > De: "Chris Dennis" <chris.w.den...@gmail.com> > À: core-libs-dev@openjdk.java.net > Envoyé: Mardi 28 Mars 2017 16:29:14 > Objet: Java 9 and IntSummaryStatistics et al. > Hi All, > > I’m currently working on a project thats attempting to do a lot of heavy > lifting > work with Java Streams (implementing, extending, adapting, etc). One issue we > ran in to is the inflexibility around unmarshalling the IntSummaryStatistics > class (and it’s other primitive variations). I had originally decided to not > push on this since it had already been filed as a enhancement request and > dismissed (JDK-8043747) and since in Java 8 and earlier it wasn’t a huge > problem for us as we could use reflection to force the initialization of one > of > these objects without much issue (modulo SecurityManager usage). In Java 9 > this starts to get much more unpalatable. I’m left with having to open up > parts of the java.base module in order to get to what I need (in classpath > mode > this looks particularly ugly since I have to open up to ALL-UNNAMED). What > I’m > trying to do here is get a roadmap in place for how to approach these kinds of > problems in a Java ecosystem which is (presumably) moving towards a gradually > more strict position on strong encapsulation. > > Right now code that treats a stream pipeline as anything more complex than a > ‘literal’ pipeline of operations through which events are pushed is going to > hit this problem - a simple example would be any kind of calculation being > performed in advance of stream creation. Right now the lack of interface > decoupling here means I have no choice but to ‘brute-force’ all these > calculations. > > Thanks, > > Chris Dennis
