- All Implemented Interfaces:
public final class Watermark extends Object implements com.hazelcast.jet.impl.execution.BroadcastItem
Watermark is an item occasionally inserted into a disordered (sub)stream of timestamped items. The watermark's timestamp value has the meaning "no items will follow with timestamp less than this." The value of the watermark is always monotonically increasing in the (sub)stream, with the effect of superimposing an ordered timestamp sequence over the original disordered one. Watermark items are used by windowing processors as anchoring points where the processor knows which windows it can close and emit their aggregated results.
Constructors Constructor Description
(long timestamp)Constructs a new watermark item.
Watermarkpublic Watermark(long timestamp)Constructs a new watermark item.