@Embedded

Clawject provides @Embedded decorator that allows to register elements from a plain object as a beans.

Note that

@Embedded decorator can't be applied to class-constructor Bean foo = Bean(Foo).

Embedding object into context

All properties of an object that is declared in IFoo will be available as a dependency in a configuration, and the IFoo object itself will be available as a bean.

interface IFoo {
  fooProperty: string;
}
const foo: IFoo = { fooProperty: 'fooValue' };

@ClawjectApplication
class Application {
  @Bean
  @Embedded
  fooBean = foo;

  @PostConstruct
  postConstruct(
    fooObject: IFoo, // <- foo will be injected here
    fooBeanFooProperty: string // <- foo.fooProperty will be injected here
  ) {}
}

Naming

If you have more than one bean with the same type, and you want to inject bean specifically from an Embedded bean, you should specify the correct name for the dependency.

In the embedded beans name will be defined as a class property name + property name from an embedded object with a first letter capitalized.

Let's look at the example:

interface IEmbedded {
  stringBean: string;
}

@ClawjectApplication
class Application {
  @Bean
  @Embedded
  embeddedBean: IEmbedded = { stringBean: 'embeddedStringBean' };

  stringBean = 'stringBeanValue';

  @PostConstruct
  postConstruct(
    stringBean: string, // <- stringBean will be injected here
    embeddedBeanStringBean: string // <- embeddedBean.stringBean will be injected here
  ) {}
}