import Adapter from "./Adapter";
import { Table } from "../model";
/**
 * An adapter for JabDB that uses a single file as the source,
 * and uses aync methods
 * @extends Adapter
 */
export declare class SingleFileAdapter extends Adapter {
    private source;
    private requireJSONFile;
    /**
     * Creates an instance of SingleFileAdapter.
     * @param {string} source The path of the source file
     * @param {boolean} requireJSONFile Whether to require the file to
     * be a .json file (``true`` by default)
     */
    constructor(source: string, requireJSONFile?: boolean);
    /** @inheritdoc */
    connect(): Promise<void>;
    /**
     * Checks that the source file exists, and is a .json file
     * @private
     * @returns {Promise<boolean>}
     * @memberof SingleFileAdapter
     */
    private checkSource;
    /**
     * Reads the source file and returns the data as a {@link Database} object
     */
    private readSource;
    /**
     * Writes data to the source file
     * @param database The data to write as a {@link Database} object
     */
    private writeSource;
    /**
     * Get a table from the database source
     * @param id The id of the table to get
     * @returns {Promise<Table>} The table as a {@link Table} object.
     */
    getTable(id: string): Promise<Table>;
    /**
     * Save a table to the database. If a table with the same id exists, it will be overridden.
     * @param table The table to save in the database.
     */
    saveTable(table: Table): Promise<void>;
    deleteTable(id: string): Promise<void>;
}