/// <reference types="node" />
import { IPersistenceLoadOptions, IPersistenceLoadResult, IPersistenceQueryOptions, IPersistenceQueryResult, IPersistenceStoreBatchOptions } from '@darlean/base';
import { IDeSer, IMultiFilter, ITime } from '@darlean/utils';
import { Filterer } from './filtering';
import { SqliteDatabase, StatementPool } from './sqlite-sync';
declare const FIELD_PK = "pk";
declare const FIELD_SK = "sk";
declare const FIELD_VALUE = "value";
export declare class FsPersistenceWorker {
    private connection?;
    private keyWhere;
    private lastSeqNr;
    private filterer;
    private deser;
    constructor(time: ITime, filterer: Filterer, deser: IDeSer);
    load(options: IPersistenceLoadOptions): IPersistenceLoadResult<Blob>;
    query(options: IPersistenceQueryOptions): IPersistenceQueryResult<Blob>;
    storeBatch(options: IPersistenceStoreBatchOptions<Blob>): Promise<void>;
    protected project(config: IMultiFilter, data: Buffer | undefined, deserFields: string[]): Buffer | undefined;
    protected filter(data: {
        [FIELD_PK]?: string;
        [FIELD_SK]?: string;
        [FIELD_VALUE]?: Buffer;
    }, filter: unknown, base: string | undefined, pkOffset: number | undefined, skOffset: number | undefined): boolean;
    openDatabase(basePath: string, mode: 'writable' | 'readonly'): void;
    protected makeLoadPool(db: SqliteDatabase): StatementPool;
    protected makeQueryPoolAsc(db: SqliteDatabase, fields?: string[]): StatementPool;
    protected makeQueryPoolDesc(db: SqliteDatabase, fields?: string[]): StatementPool;
    protected makeStorePool(db: SqliteDatabase): StatementPool;
    protected makeDeletePool(db: SqliteDatabase): StatementPool;
    protected makeKeyWhere(): string;
    protected makeKeyValues(partitionKey: string[], sortKey: string[] | undefined): string[];
    closeDatabase(): Promise<void>;
}
declare const workerdef: {
    open: (basePath: string, mode: 'readonly' | 'writable') => void;
    close: () => Promise<void>;
    load: (options: IPersistenceLoadOptions) => IPersistenceLoadResult<Blob>;
    query: (options: IPersistenceQueryOptions) => IPersistenceQueryResult<Blob>;
    storeBatch: (options: IPersistenceStoreBatchOptions<Blob>) => Promise<void>;
};
export type WorkerDef = typeof workerdef;
export {};