WindowSpecification

All Known Implementing Classes:

WindowSpecificationImpl
```
public interface WindowSpecification<T>
```
A specification for a Window.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`long`	`lower()`	The window's lower frame bound.
`java.util.Optional<java.util.Comparator<? super T>>`	`order()`	The window order.
`java.util.function.Function<? super T,?>`	`partition()`	The window partition function.
`long`	`upper()`	The window's upper frame bound.

- Method Detail
  - partition
```
java.util.function.Function<? super T,?> partition()
```
    The window partition function.
  - order
```
java.util.Optional<java.util.Comparator<? super T>> order()
```
    The window order.
  - lower
```
long lower()
```
    The window's lower frame bound.
  - upper
```
long upper()
```
    The window's upper frame bound.