Event Driven Application

Presented by Prasetyo Wicaksono (@praswicaksono)

In this talk I want to present Event Driven Application by using mediator pattern. It would help decouple your code but beware there are some cons by using this pattern such as hard to track if your apps grown bigger.

Transcript

1. Event Driven Application
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2. BIO
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   Prasetyo Wicaksono
   
   Head of IT Dept. at PT Zion
   Internasional Niaga
   
   @malangphp organizer
   
   Twitter : @praswicaksono
   
   Github: https://github.com/Atriedes
   

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3. Event
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   
   event is an action or occurrence recognized by
   software that may be handled by the software.
   Computer events can be generated or triggered by
   the system or by the user. Event can be defined as
   "a significant change in state“ – wikipedia
   

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4. Mediator Pattern
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   ATC Tower
   

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5. Architecture
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   Client
   

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6. Architecture
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   Client Event
   

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7. Architecture
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   Client Event Mediator
   

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8. Architecture
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   Client Event Mediator
   Listener
   Listener
   Listener
   

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9. Mediator Interface
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10. Hook
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    
    In computer programming, the term hooking
    covers a range of techniques used to alter or
    augment the behavior of an operating system,
    of applications, or of other software
    components by intercepting function calls or
    messages or events passed between software
    components. Code that handles such
    intercepted function calls, events or messages
    is called a "hook". - wikipedia
    

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11. Example
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12. Prioritize Listener
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    Client Event Mediator
    1 – Make
    sure title is
    upper case
    2 -
    Uppercase
    Title
    3 - Sanitize
    Body
    

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13. I can’t handle this
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14. Notify Only ‘Hooks’
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    Don't change behavior
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    Only notify activity such as logging, sending
    email, updating cache
    

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15. Example
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16. Notify Only ‘Hook’ + Background
    Process
    =
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17. @phpconfasia
    “Most of all, experiment.
    Make mistakes. Talk about
    them.” Igor Wiedler
    

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18. Thanks
    @phpconfasia
    https://joind.in/15385
    @praswicaksono
    

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