Created
May 4, 2016 11:23
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inversifyjs-demo
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import 'reflect-metadata'; | |
import {injectable, Kernel} from 'inversify'; | |
// 注入したい振る舞いの定義 | |
@injectable() | |
abstract class AwesomeService { | |
abstract greeting(): string; | |
} | |
// 振る舞いに対応した実装 | |
@injectable() | |
class ConcreteAwesomeService extends AwesomeService { | |
greeting() { | |
return "It's a concrete awesome service!"; | |
} | |
} | |
// 注入される側のclass | |
@injectable() | |
class Main { | |
constructor(private service: AwesomeService) {} | |
run() { | |
console.log(this.service.greeting()); | |
} | |
} | |
// DIコンテナの準備 | |
const kernel = new Kernel(); | |
kernel.bind<AwesomeService>(AwesomeService).to(ConcreteAwesomeService); | |
kernel.bind<Main>(Main).to(Main); | |
// コンテナからインスタンスを取得 | |
const main: Main = kernel.get<Main>(Main); | |
main.run(); |
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