128 lines
3.3 KiB
HTML
128 lines
3.3 KiB
HTML
<!--
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The MIT License
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Copyright © 2014-2019 Ilkka Seppälä
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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-->
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<!DOCTYPE html>
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<html>
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<head>
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<title>Title</title>
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<meta charset="utf-8">
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<style>
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@import url(https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz);
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@import url(https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic);
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@import url(https://fonts.googleapis.com/css?family=Ubuntu+Mono:400,700,400italic);
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body { font-family: 'Droid Serif'; }
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h1, h2, h3 {
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font-family: 'Yanone Kaffeesatz';
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font-weight: normal;
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}
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.remark-code, .remark-inline-code { font-family: 'Ubuntu Mono'; }
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</style>
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</head>
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<body>
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<textarea id="source">
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class: center, middle
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# Hexagonal Architecture
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---
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# Also known as
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* Ports and Adapters
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* Clean Architecture
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* Onion Architecture
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---
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# Layered architecture problems
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* No clear application core
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* Business logic leaks to the presentation layer
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<br />
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<br />
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.center[]
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---
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# Intent
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* Application can be driven by users, programs, automated test or batch scripts
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* Application can be developed and tested in isolation from its eventual run-time devices and databases
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---
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# Applicability
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Use Hexagonal Architecture pattern
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* When the application needs to be independent of any frameworks
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* When it is important that the application highly maintainable and fully testable
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---
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# Concepts
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* Ports are interfaces
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* The ports that drive the application are called primary ports
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* The ports that are driven by the application are called secondary ports
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---
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# Concepts
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* Adapters are interface implementations
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* Typically different adapters for testing and production are provided
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---
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# Diagram
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.center[]
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---
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# Real world examples
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* [Apache Isis](https://isis.apache.org/) builds generic UI and REST API directly from the underlying domain objects
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---
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# Tutorials
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* Blog http://java-design-patterns.com/blog/build-maintainable-systems-with-hexagonal-architecture/
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* Source code http://java-design-patterns.com/patterns/hexagonal/
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</textarea>
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<script src="https://gnab.github.io/remark/downloads/remark-latest.min.js">
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</script>
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<script>
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var slideshow = remark.create();
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</script>
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</body>
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</html>
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