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108 lines
4.5 KiB
Markdown
108 lines
4.5 KiB
Markdown
Poodinis Dependency Injection Framework
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=======================================
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Version 8.0.1
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Copyright 2014-2017 Mike Bierlee
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Licensed under the terms of the MIT license - See [LICENSE.txt](LICENSE.txt)
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Master: [](https://travis-ci.org/mbierlee/poodinis) - Dev: [](https://travis-ci.org/mbierlee/poodinis)
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Poodinis is a dependency injection framework for the D programming language. It is inspired by the [Spring Framework] and [Hypodermic] IoC container for C++. Poodinis supports registering and resolving classes either by concrete type or interface. Automatic injection of dependencies is supported through the use of UDAs or constructors.
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Requires at least a D 2.068.2 compatible compiler
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Uses the Phobos standard library
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Can be built with DUB 1.1.1 or higher
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Features
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--------
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* Member injection: Injection of dependencies in class members of any visibility (public, private, etc.)
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* Constructor injection: Automatic injection of dependencies in class constructors on creation.
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* Value injection: Value-types such as primitives or structs can be injected using custom value injectors.
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* Type qualifiers: Inject concrete types into members defined only by abstract types.
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* Application contexts: Control the creation of dependencies manually through factory methods.
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* Multi-threadable: Dependency containers return the same dependencies across all threads.
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* Minimal set-up: Creation and injection of conventional classes requires almost no manual dependency configuration.
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* Well-tested: Developed test-driven, a great number of scenarios are tested as part of the test suite.
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See the [TUTORIAL.md](TUTORIAL.md) and [examples](example) for a complete walkthrough of all features.
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Getting started
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---------------
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### DUB Dependency
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See the Poodinis [DUB project page] for instructions on how to include Poodinis into your project.
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### Quickstart
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The following example shows the typical usage of Poodinis:
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```d
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import poodinis;
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class Driver {}
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interface Database {};
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class RelationalDatabase : Database {
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private Driver driver;
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this(Driver driver) { // Automatically injected on creation by container
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this.driver = driver;
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}
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}
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class DataWriter {
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@Autowire
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private Database database; // Automatically injected when class is resolved
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}
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void main() {
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auto dependencies = new shared DependencyContainer();
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dependencies.register!Driver;
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dependencies.register!DataWriter;
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dependencies.register!(Database, RelationalDatabase);
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auto writer = dependencies.resolve!DataWriter;
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}
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```
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Dependency set-up can further be reduced by enabling "Register on resolve". For more details and examples, see the [examples](example) directory.
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Documentation
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-------------
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You can find the public API documentation [here](https://mbierlee.github.io/poodinis/).
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Alternatively you can generate documentation from the source code using DUB:
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```
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dub build --build=ddox
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```
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The documentation can then be found in docs/
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History
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-------
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For a full overview of changes, see [CHANGES.md](CHANGES.md)
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Value Injectors
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---------------
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Poodinis doesn't come with implementations of value injectors. Value injectors are available in separate projects:
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* [Proper-d value injector](https://github.com/mbierlee/poodinis-proper-d-injector)
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Have you made any or do you know of any? Please add them to this section via a pull request or open an issue.
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Projects Using Poodinis
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-----------------------
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* [Eloquent](https://github.com/SingingBush/eloquent): A lightweight web application written in D
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* [ioc](https://github.com/FilipMalczak/ioc): Slow approach to Inversion of Control in D2 language
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Future Work
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-----------
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* Component scan (auto-registration)
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* Phobos collections autowiring
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* Named qualifiers
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Contributing
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------------
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Any and all pull requests are welcome! If you (only) want discuss changes before making them, feel free to open an Issue on github.
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Please develop your changes on (a branch based on) the develop branch. Continuous integration is preferred so feature branches are not neccessary.
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[Spring Framework]: http://projects.spring.io/spring-framework/
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[Hypodermic]: https://github.com/ybainier/hypodermic/
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[DUB]: http://code.dlang.org/
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[DUB project page]: http://code.dlang.org/packages/poodinis
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[Github issue tracker]: https://github.com/mbierlee/poodinis/issues
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