Going Reactive with Spring Data (JUG Berlin-Brandenburg)

This talk covers what a stream is and how reactive data access leverages scalability bounds by applying the most natural way of data access with Spring Data and Project Reactor. If you are a developer looking to consume data in a functional reactive style, this is your chance to gain the experience how your application can benefit from streaming data access and to learn why not everything should be reactive.

Transcript

1. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software, Inc. and licensed under a
   
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   Going Reactive with Spring Data
   Christoph Strobl | Mark Paluch
   

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2. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software, Inc. and licensed under a
   
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   2
   

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3. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software, Inc. and licensed under a
   
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   Synchronous Data Access
   3
   {…}
   Thread: MAIN
   

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4. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software, Inc. and licensed under a
   
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   Synchronous Data Access II
   4
   {…}
   Thread: MAIN
   Batching
   

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5. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software, Inc. and licensed under a
   
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   Asynchronous Data Access
   5
   {…}
   Dispatcher
   Thread: MAIN
   Thread: Worker A
   Thread: Worker B
   Thread: Worker C
   

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6. {…}
   {…}
   {…}
   Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software, Inc. and licensed under a
   
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   Asynchronous Data Access II
   6
   {…}
   Dispatcher
   Thread: MAIN
   Thread: Worker A
   Thread: Worker B
   Thread: Worker C
   Scaling
   

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7. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software, Inc. and licensed under a
   
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   Reactive Data Access
   7
   {…}
   Subscriber Publisher
   Stream
   

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8. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software, Inc. and licensed under a
   
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   8
   Iterator.next()
   Future.get()
   Subscriber.onNext(t)
   

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9. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software, Inc. and licensed under a
   
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   Reactive Data Access
   9
   {…}
   Stream
   Thread: MAIN
   Subscriber Publisher
   

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10. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software, Inc. and licensed under a
    
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    Reactive Data Access
    10
    {…}
    Thread: Worker A
    Thread: Worker A
    Stream
    Subscriber Publisher
    

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11. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software, Inc. and licensed under a
    
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    Reactive Data Access
    11
    {…}
    Subscriber Publisher
    Stream
    Thread: Worker A
    Thread: Worker B
    

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12. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software, Inc. and licensed under a
    
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    Going Reactive with Spring Data
    12
    Spring Framework

    5
    Project Reactor

    3
    Spring Data

    Kay
    

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13. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software, Inc. and licensed under a
    
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    Reactor & Reactive Streams
    13
    Publisher (0…n)
    Flux (0…n) Mono (0…1)
    Reactive Streams
    

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14. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software, Inc. and licensed under a
    
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    Spring Data & Reactor
    14
    Mono insert(S entity);
    Mono insert(Mono entity);
    Flux insert(Iterable entities);
    Flux insert(Publisher entities);
    Mono exists(Mono id);
    Flux findAll();
    Mono count();
    Mono delete(ID id);
    !!...
    

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15. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software, Inc. and licensed under a
    
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    Spring Data Reactive
    15
    interface Repo extends ReactiveCrudRepository {
    !
    !
    !
    !
    !
    }
    Flux findByLastname(String lastname);
    Flux findByLastname(Mono lastname);
    Flux customQuery(String lastname);
    @Query("{lastname : ?0}");
    

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16. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software, Inc. and licensed under a
    
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    Wake Up!
    It’s Demo Time
    

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17. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software, Inc. and licensed under a
    
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    Hang on just a little
    commercial break…
    

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18. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software, Inc. and licensed under a
    
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    18
    Learn More. Stay Connected.
    Twitter: twitter.com/springcentral
    YouTube: spring.io/video
    LinkedIn: spring.io/linkedin
    Google Plus: spring.io/gplus
    

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