Streams in the wild
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The document discusses advanced patterns of the Java 8 Stream API using the Spliterator API. It presents several techniques such as grouping, rolling, and zipping to manipulate streams effectively. The conclusion emphasizes the versatility of the Spliterator API in connecting and customizing streams.
![@JosePaumard#J8Stream
Spliterators on spliterators
Building a Spliterator on another Spliterator allows:
Grouping: [1, 2, 3, 4, 5, …] ->
[[1, 2, 3], [4, 5, 6], [7, 8, 9], …]
Rolling: [1, 2, 3, 4, 5, …] ->
[[1, 2, 3], [2, 3, 4], [3, 4, 5], …]
Zipping: [1, 2, 3, …], [a, b, c, …] ->
[F[1, a], F[2, b], F[3, c], …]](https://image.slidesharecdn.com/streams-in-the-wild-171005142716/85/Streams-in-the-wild-6-320.jpg)
![@JosePaumard#J8Stream
Spliterators on spliterators
Building a Spliterator on another Spliterator allows:
Colllecting on a shifting window:
[a, b, c, d, e, …] ->
[[a, b, c], [b, c, d], [c, d, e], …]
[A, B, C, …]
collect collect collect](https://image.slidesharecdn.com/streams-in-the-wild-171005142716/85/Streams-in-the-wild-7-320.jpg)
Streams in the wild
- 1. @JosePaumard#J8Stream Streams in the Wild Java SE 8
- 2. @JosePaumard#J8Stream Agenda About Java 8 Streams Goal: to show advanced patterns of the Stream API Based on the Spliterator API
- 6. @JosePaumard#J8Stream Spliterators on spliterators Building a Spliterator on another Spliterator allows: Grouping: [1, 2, 3, 4, 5, …] -> [[1, 2, 3], [4, 5, 6], [7, 8, 9], …] Rolling: [1, 2, 3, 4, 5, …] -> [[1, 2, 3], [2, 3, 4], [3, 4, 5], …] Zipping: [1, 2, 3, …], [a, b, c, …] -> [F[1, a], F[2, b], F[3, c], …]
- 7. @JosePaumard#J8Stream Spliterators on spliterators Building a Spliterator on another Spliterator allows: Colllecting on a shifting window: [a, b, c, d, e, …] -> [[a, b, c], [b, c, d], [c, d, e], …] [A, B, C, …] collect collect collect
- 8. @JosePaumard#J8Stream Conclusion The Spliterator API can be used to connect streams to custom sources It can be used also to manipulate streams https://github.com/JosePaumard/streams-utils