@hexadrop/query/dist/in-memory.query-handlers.d.ts

Hexagonal architecture utils library

import { QueryBusCallback, QueryHandler } from './bus.js';
import Query, { QueryClass } from './query.js';
import QueryHandlers from './query-handlers.js';
import '@hexadrop/either';
import '@hexadrop/error';
import '@hexadrop/types/class';
import '@hexadrop/types/primitives';

/**
 * InMemoryQueryHandlers is a class that extends QueryHandlers.
 * It is used to handle queries in memory.
 *
 * @property {Map<string, QueryBusCallback>} queryHandlersMap - A map that stores the query handlers.
 */
declare class InMemoryQueryHandlers extends QueryHandlers {
    private readonly queryHandlersMap;
    /**
     * Constructs a new instance of the InMemoryQueryHandlers class.
     */
    constructor();
    /**
     * @static
     * @method merge
     * @description Merges multiple InMemoryQueryHandlers instances into one.
     * @param {...InMemoryCommandHandlers[]} handlers - The instances to merge.
     * @returns {InMemoryCommandHandlers} The merged InMemoryQueryHandlers instance.
     */
    static merge(...handlers: InMemoryQueryHandlers[]): InMemoryQueryHandlers;
    /**
     * This method is used to register a query handler.
     * It stores the handler in the queryHandlersMap with the query's QUERY_NAME as the key.
     *
     * @param {QueryClass<ResponseType, QueryType>} query - The QueryClass to be registered.
     * @param {QueryBusCallback<ResponseType, QueryType> | QueryHandler<ResponseType, QueryType>} handlerOrCallback - The handler or callback to be registered.
     * @template ResponseType - The type of the response that the query handler should return.
     * @template QueryType - The type of the Query that extends Query<ResponseType>.
     */
    register<ResponseType, QueryType extends Query<ResponseType>>(query: QueryClass<ResponseType, QueryType>, handlerOrCallback: QueryBusCallback<ResponseType, QueryType> | QueryHandler<ResponseType, QueryType>): void;
    /**
     * This method is used to search for a query handler.
     * It retrieves the handler from the queryHandlersMap using the query's QUERY_NAME or queryName as the key.
     * If no handler is found, it throws a QueryNotRegisteredError.
     *
     * @param {QueryType | QueryClass<ResponseType, QueryType>} query - The Query or QueryClass to be searched for.
     * @returns {QueryBusCallback<ResponseType, QueryType>} - The found query handler.
     * @throws {InvalidQueryError} - If the query does not have a QUERY_NAME or queryName.
     * @throws {QueryNotRegisteredError} - If no handler is found for the query.
     * @template ResponseType - The type of the response that the query handler should return.
     * @template QueryType - The type of the Query that extends Query<ResponseType>.
     */
    search<ResponseType, QueryType extends Query<ResponseType>>(query: QueryClass<ResponseType, QueryType> | QueryType): QueryBusCallback<ResponseType, QueryType>;
    /**
     * This method is used to unregister a query handler.
     * It removes the handler from the queryHandlersMap using the query's QUERY_NAME as the key.
     *
     * @param {QueryClass<unknown, Query<unknown>>} query - The QueryClass to be unregistered.
     */
    unregister(query: QueryClass<unknown, Query<unknown>>): void;
}

export { InMemoryQueryHandlers as default };