import { Pool } from 'mysql';
import { Table } from '../../mapping';
import { IOkResult } from '../../okResult';
import { Store } from '../../store';
import * as Types from '../../types';
import { IQuery } from '../iQuery';
export declare abstract class MysqlStore<TTable extends Table, TDto> extends Store {
    protected db: Pool;
    constructor(db: Pool);
    protected readonly newQuery: IQuery<TTable>;
    protected find(queryOrBuilder?: Types.QueryBuilder<TTable>, dtoMapper?: (rows: any[]) => TDto[]): Promise<TDto[]>;
    protected findOne(query: IQuery<TTable>): Promise<TDto>;
    protected findOne(query: Types.QueryBuilder<TTable>): Promise<TDto>;
    /**
     * Select a single field or expression and return its value
     *
     * @protected
     * @template TScalar
     * @param {string} expression A select expression. E.g. "COUNT(id)"
     * @param {TScalar} [defaultValue] The value to return if result is null or undefined
     * @returns {Promise<TScalar>}
     * @memberof MysqlStore
     */
    protected compute<TScalar>(expression: string, defaultValue?: TScalar): Promise<TScalar>;
    /**
     * Select a single field or expression and return its value
     *
     * @protected
     * @template TScalar
     * @param {Types.QueryOrBuilder<TTable>} queryOrBuilder A query or a query builder function. E.g. `t => t.id`
     * @param {TScalar} [defaultValue] The value to return if result is null or undefined
     * @returns {Promise<TScalar>}
     * @memberof MysqlStore
     */
    protected compute<TScalar>(queryOrBuilder: Types.QueryOrBuilder<TTable>, defaultValue?: TScalar): Promise<TScalar>;
    protected create(obj: TDto): Promise<TDto>;
    protected update(data: {
        [key in keyof TTable]?: any;
    }, criteriaOrBuilder: Types.CriteriaOrBuilder<TTable>, excludeFields?: (string & keyof TTable)[]): Promise<IOkResult>;
    protected delete(criteriaOrBuilder: Types.CriteriaOrBuilder<TTable>): Promise<IOkResult>;
    protected runCommand(command: string): Promise<any>;
    private isOkResult(res);
    private trx(commands);
    private runQuery(query);
    /**
     * Map many results returning an array
     *
     * @private
     * @param {any[]} rows
     * @returns {TDto[]}
     * @memberof MysqlStore
     */
    private mapResults(rows);
    /**
     * Map a single result
     *
     * @private
     * @param {any[]} rows
     * @returns {TDto[]}
     *
     * @memberOf MysqlStore
     */
    private mapResult(row);
    private unwrap<T>(objOrBuilder, ...args);
}