WindowKey (Flink : 1.17-SNAPSHOT API)

```
public final class WindowKey
extends Object
```
The WindowKey structure represents a combination of key and window. This is mainly used in the mini-batch window operators and window is identified by window end timestamp.

Constructors
Constructor and Description
`WindowKey(long window, RowData key)`

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`boolean`	`equals(Object o)`
`RowData`	`getKey()`
`long`	`getWindow()`
`int`	`hashCode()`
`WindowKey`	`replace(long window, RowData key)` Replace the currently stored key and window by the given new key and new window.

public WindowKey(long window,
                 RowData key)

public WindowKey replace(long window,
                         RowData key)

Replace the currently stored key and window by the given new key and new window.

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