Package com.espertech.esper.common.internal.view.core

Interface DerivedValueView

All Superinterfaces:
Iterable<EventBean>, View, Viewable
All Known Implementing Classes:
BaseBivariateStatisticsView, CorrelationView, RegressionLinestView, UnivariateStatisticsView, WeightedAverageView
public interface DerivedValueView extends View
Tag interface for derived-value views. Derived-value views follow the view interface and do not keep a window over the data received by their parent view. They simply derive a set of data points from a stream and do not retain events.

Derived-Value views generally follow the following behavior:

They publish the output data when receiving insert or remove stream data from their parent view, directly and not time-driven.

They typically change event type compared to their parent view, since they derive new information or add information to events.