K- The type of key the state is associated to
N- The type of the namespace
IN- Type of the value added to the state
SV- The type of elements in the state
OUT- Type of the value extracted from the state
public interface InternalAggregatingState<K,N,IN,SV,OUT> extends InternalMergingState<K,N,IN,SV,OUT>, AggregatingState<IN,OUT>
getKeySerializer, getNamespaceSerializer, getSerializedValue, getValueSerializer, setCurrentNamespace
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