import { ObjectLiteral } from "../../common/ObjectLiteral";
import { ColumnMetadata } from "../../metadata/ColumnMetadata";
import { WebsqlQueryRunner } from "./WebsqlQueryRunner";
import { Connection } from "../../connection/Connection";
import { WebSqlConnectionOptions } from "./WebSqlConnectionOptions";
import { AbstractSqliteDriver } from "../sqlite-abstract/AbstractSqliteDriver";
/**
 * Organizes communication with WebSQL in the browser.
 */
export declare class WebsqlDriver extends AbstractSqliteDriver {
    /**
     * Connection options.
     */
    options: WebSqlConnectionOptions;
    constructor(connection: Connection);
    /**
     * Performs connection to the database.
     */
    connect(): Promise<void>;
    /**
     * Closes connection with the database.
     */
    disconnect(): Promise<void>;
    /**
     * Creates a query runner used to execute database queries.
     */
    createQueryRunner(mode?: "master" | "slave"): WebsqlQueryRunner;
    /**
     * Prepares given value to a value to be persisted, based on its column type and metadata.
     */
    preparePersistentValue(value: any, columnMetadata: ColumnMetadata): any;
    /**
     * Prepares given value to a value to be persisted, based on its column type or metadata.
     */
    prepareHydratedValue(value: any, columnMetadata: ColumnMetadata): any;
    /**
     * Replaces parameters in the given sql with special escaping character
     * and an array of parameter names to be passed to a query.
     */
    escapeQueryWithParameters(sql: string, parameters: ObjectLiteral): [string, any[]];
    /**
     * Escapes a column name.
     */
    escape(columnName: string): string;
}