Dependency Lookup

In addition to Dependency Injection, Vona also provides Dependency Lookup. In Vona, it is recommended to use dependency lookup, because dependency lookup can make the code more concise and intuitive

Dependency Lookup in current module

Suppose we want to lookup the ServiceMenu provided by this module home-base in the ControllerMenu of the current module, the code is as follows:

class ControllerMenu {
  async test() {
    return await this.scope.service.menu.retrieveMenus('');
  }
}

• Get the scope object of this current module through this.scope to lookup the service provided by this module

Dependency Lookup Cross-module

Suppose we want to lookup the ServiceMenu provided by the module home-base in the ControllerHome of the module home-index, the code is as follows:

class ControllerHome {
  async test() {
    return await this.$scope.homeBase.service.menu.retrieveMenus('');
  }
}

• Get the scope object of the module home-base through this.$scope.homeBase to lookup the service provided by module home-base

Lookup global service beans

Suppose we want to lookup the global service bean BeanJwt provided by module a-jwt in ControllerHome of module home-index, the code is as follows:

class ControllerHome {
  async test() {
    return await this.bean.jwt.create({});
  }
}

• Get the app bean container through this.bean to lookup the global service bean