What do you mean by ComplexEvents? Do you mean that the output of CEP library is DataStream<ComplexEvent>? If so, then yes, they should be either Serializable or you should provide custom TypeSerializer<ComplexEvent>. > On 12 Jul 2017, at 06:58, Sridhar Chellappa <flinken...@gmail.com> wrote: > > Folks, > > I am using the CEP library to create ComplexEvents. My question is, should > the ComplexEvents be serializable?
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