Package org.apache.storm.windowing

# Class WaterMarkEvent<T>

java.lang.Object
org.apache.storm.windowing.EventImpl<T>
org.apache.storm.windowing.WaterMarkEvent<T>

All Implemented Interfaces:
  `Event<T>`

public class WaterMarkEvent<T> extends EventImpl<T>
Watermark event used for tracking progress of time when processing event based ts.

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `WaterMarkEvent(long ts)`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `boolean`
  `isWatermark()`
  If this is a watermark event or not.
  `String`
  `toString()`

  ### Methods inherited from class org.apache.storm.windowing.EventImpl

  `get, getTimestamp`

  ### Methods inherited from class java.lang.Object

  `clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- ## Constructor Details

  - ### WaterMarkEvent

    public WaterMarkEvent(long ts)

- ## Method Details

  - ### isWatermark

    public boolean isWatermark()
    Description copied from interface: `Event`
    If this is a watermark event or not. Watermark events are used for tracking time while processing event based ts.
    Specified by:
      `isWatermark` in interface `Event<T>`
    Overrides:
      `isWatermark` in class `EventImpl<T>`
    Returns:
      true if this is a watermark event

  - ### toString

    public String toString()
    Overrides:
      `toString` in class `EventImpl<T>`