Hi, you are right. Only the first operator in a chain can be a keyed operator. Therefore, the “setKeyContextElement1” call is currently unnecessary. If you want you can open an issue for that and work on removing it.
Cheers, Aljoscha > On 16 Mar 2016, at 09:24, Ma GuoWei <maguo...@outlook.com> wrote: > > hi,all > The class CopyingChainOutput always setKeyContextElement1 but the second > operator of "chain" is not keyedstream any more. > I think this is no use to setKeyContextElement1. > do i miss something? > thanks for any help. > > > > >
