39 lines
1.5 KiB
Markdown
39 lines
1.5 KiB
Markdown
---
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layout: pattern
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title: Pipeline
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folder: pipeline
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permalink: /patterns/pipeline/
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categories: Behavioral
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tags:
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- Decoupling
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---
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## Intent
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Allows processing of data in a series of stages by giving in an initial input and passing the processed output to be used by the next stages.
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## Class diagram
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## Applicability
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Use the Pipeline pattern when you want to
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* Execute individual stages that yields a final value
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* Add readability to complex sequence of operations by providing a fluent builder as an interface
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* Improve testability of code since stages will most likely be doing a single thing, complying to the [Single Responsibility Principle (SRP)](https://java-design-patterns.com/principles/#single-responsibility-principle)
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## Typical Use Case
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* Implement stages and execute them in an ordered manner
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## Real world examples
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* [java.util.Stream](https://docs.oracle.com/javase/8/docs/api/java/util/stream/package-summary.html)
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* [Maven Build Lifecycle](http://maven.apache.org/guides/introduction/introduction-to-the-lifecycle.html)
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* [Functional Java](https://github.com/functionaljava/functionaljava)
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## Credits
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* [The Pipeline Pattern — for fun and profit](https://medium.com/@aaronweatherall/the-pipeline-pattern-for-fun-and-profit-9b5f43a98130)
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* [The Pipeline design pattern (in Java)](https://medium.com/@deepakbapat/the-pipeline-design-pattern-in-java-831d9ce2fe21)
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* [Pipelines | Microsoft Docs](https://docs.microsoft.com/en-us/previous-versions/msp-n-p/ff963548(v=pandp.10))
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