Window (Flink : Runtime 2.1.1 API)

java.lang.Object
- org.apache.flink.streaming.api.windowing.windows.Window

Direct Known Subclasses:

GlobalWindow, TimeWindow
```
@PublicEvolving
public abstract class Window
extends Object
```
A Window is a grouping of elements into finite buckets. Windows have a maximum timestamp which means that, at some point, all elements that go into one window will have arrived.
Subclasses should implement equals() and hashCode() so that logically same windows are treated the same.

- Constructor Summary
  
  Constructors
  Constructor Description
  
  Window()
- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  abstract long maxTimestamp()
  Gets the largest timestamp that still belongs to this window.
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Window
```
public Window()
```
- Method Detail
  - maxTimestamp
```
public abstract long maxTimestamp()
```
    Gets the largest timestamp that still belongs to this window.
    
    Returns:
    
    The largest timestamp that still belongs to this window.