@yobuligo/service-provider.typescript/dist/IServiceMeta.d.ts

A dependency injection implementation for TypeScript by using a service provider / service locator.

import { ServiceDefinition } from "./ServiceDefinition";
import { ServiceInstanceType } from "./ServiceProviderTypes";
/**
 * An implementation of this interface contains all information about a service.
 */
export interface IServiceMeta<T extends ServiceDefinition<any>, TServiceType extends keyof T> {
    /**
     * This property contains the {@link ServiceDefinition} type which refers to the connected service type. Each service definition must extend {@link ServiceDefinition}.
     */
    readonly serviceDefinition: new () => T;
    /**
     * This property contains the class of the service type. It is optional and only used if the service should be created on demand by registering the service.
     */
    readonly concreteServiceType?: new () => T[TServiceType];
    /**
     * This property contains the instantiation type of the service. If the service is initialized only once {@link ServiceInstanceType.SINGLE_INSTANTIABLE} and the single created service instance is returned with each request.
     * Or multiple {@link ServiceInstanceType.MULTI_INSTANTIABLE} which means that with each request of the same service a new instance is created.
     */
    readonly serviceInstanceType: ServiceInstanceType;
    /**
     * This property contains the created service instance for {@link ServiceInstanceType.SINGLE_INSTANTIABLE}.
     */
    serviceInstance?: T[TServiceType];
}