Just found out there is another way: http://stackoverflow.com/questions/106336/how-do-i-find-out-what-type-each-object-is-in-a-arraylistobject
On Tue, May 24, 2016 at 4:47 PM, Sinnema, Remon <[email protected]> wrote: > You could emit an extra boolean field to distinguish the two cases. > > > > *From:* Navin Ipe [mailto:[email protected]] > *Sent:* dinsdag 24 mei 2016 12:52 > *To:* [email protected] > *Subject:* Distinguishing between streams in an ack() or fail() > > > > Hi, > > In my spout, I'm emitting a string as the messageID and under some > conditions, I'm also emitting a stream with an ArrayList of strings as the > tuple. > > if (something) { > collector.emit(new Values(stringTuples), somestring);//tuples, messageID > > } else { > > collector.emit("streamName1", new Values(anArrayList)); > } > > Is there an inbuilt way in ack(Object msgId) to distinguish between the > ack of streamName1 vs the default stream? Because msgId will have to be > cast into either a String or an ArrayList. > > The only way I can think of it now, is to use a try-catch. Try for String > casting. If an exception is thrown, catch it and cast as ArrayList. > > Is this the best way? > > > -- > > Regards, > > Navin > -- Regards, Navin
