import BaseStorage from './BaseStorage';
import Base from '../models/Base';
import { Where } from '../types/Websocket';
export interface MongoDBStorageConfig {
    roomCollection?: string;
    socketCollection?: string;
}
export default class MongoDBStorage implements BaseStorage {
    private db;
    private roomCollection;
    private socketCollection;
    private roomCollectionExists;
    private socketCollectionExists;
    constructor(options?: MongoDBStorageConfig);
    /**
     * get mongo collection by table name
     * @param table
     * @return
     */
    private getCollection;
    /**
     * save data to mongo
     * @param table table name
     * @param data
     */
    save(table: string, data: Base): Promise<void>;
    /**
     * get data from mongo
     * @param table
     * @param where
     * @return
     */
    find(table: string, where: Where): Promise<any>;
    /**
     * find data by id
     * @param table
     * @param id
     * @param namespace
     * @return
     */
    findById(table: string, id: string, namespace?: string): Promise<any>;
    update(table: string, where: Where, data: any): Promise<void>;
    remove(table: string, where: Where): Promise<void>;
}