import { IExecutorEngine } from "./engines/base";
import { RequestTableDataStatement } from "./statement";
import { WorkflowGraph } from "../types";
import { Output, ExecutionError } from "../models/workflowNode";
export declare namespace WorkflowExecutor {
    interface IHandlers {
        onNodeExecutionError(nodeId: string, reason: ExecutionError): void;
        onNodeExecutionSuccess(nodeId: string, payload: Output): void;
        onNodeExecutionStart(nodeId: string): void;
        onRequestTableDataSucces(nodeId: string, name: string, data: any[][]): void;
    }
    interface IOptions {
        engine: IExecutorEngine;
        handlers: IHandlers;
        graphGetter: () => WorkflowGraph;
    }
}
export declare class WorkflowExecutor {
    private readonly _engine;
    private readonly _statementFactory;
    private readonly _handlers;
    private readonly _graphGetter;
    private readonly _statementIdGenerator;
    private _initialized;
    constructor(options: WorkflowExecutor.IOptions);
    requestTableData(id: string, name: string, ix: [number, number], iy: [number, number]): Promise<RequestTableDataStatement.Output>;
    private _executeNode;
    private _wrapError;
    execute(): void;
}