org.apache.storm.windowing

## Interface Event<T>

- All Known Implementing Classes:
    EventImpl, WaterMarkEvent

      public interface Event<T>

  An event is a wrapper object that gets stored in the window.

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `T` | `get()` Returns the wrapped object, E.g.
    `long` | `getTimestamp()` The event timestamp in millis.
    `boolean` | `isWatermark()` If this is a watermark event or not.

- - ### Method Detail

    - #### getTimestamp

          long getTimestamp()

      The event timestamp in millis. This could be the time when the source generated the tuple or the time when the tuple was received by a bolt.

      Returns:
        the event timestamp in milliseconds.

    - #### get

          T get()

      Returns the wrapped object, E.g. a tuple

      Returns:
        the wrapped object.

    - #### isWatermark

          boolean isWatermark()

      If this is a watermark event or not. Watermark events are used for tracking time while processing event based ts.

      Returns:
        true if this is a watermark event

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