import { AdapterBase, AdapterParams, AdapterQuery, AdapterServiceOptions, PaginationOptions } from "@feathersjs/adapter-commons";
import { Id, NullableId, Paginated } from "@feathersjs/feathers";
import NeDB from "@seald-io/nedb";
export interface NeDBAdapterOptions extends AdapterServiceOptions {
    Model: NeDB;
}
export interface NeDBAdapterParams<Q = AdapterQuery> extends AdapterParams<Q, Partial<NeDBAdapterOptions>> {
    nedb?: {
        upsert: boolean;
    };
}
export declare class NeDbAdapter<Result extends Record<string, any>, Data extends Record<string, any> = Partial<Result>, ServiceParams extends NeDBAdapterParams<any> = NeDBAdapterParams, PatchData = Partial<Data>> extends AdapterBase<Result, Data, PatchData, ServiceParams, NeDBAdapterOptions> {
    constructor(options: NeDBAdapterOptions);
    getSelect(select: string[]): any;
    filterQuery(id: NullableId, params: ServiceParams): {
        filters: {
            $select: string[];
            $sort: {
                [key: string]: 1 | -1;
            };
            $limit: number;
            $skip: number;
        };
        query: {
            [key: string]: any;
        };
    };
    _findOrGet(id: NullableId, params: ServiceParams): Promise<Result | Paginated<Result> | Result[]>;
    normalizeId<D>(id: NullableId, data: D): D;
    _find(params?: ServiceParams & {
        paginate?: PaginationOptions;
    }): Promise<Paginated<Result>>;
    _find(params?: ServiceParams & {
        paginate: false;
    }): Promise<Result[]>;
    _find(params?: ServiceParams): Promise<Paginated<Result> | Result[]>;
    _get(id: NullableId, params?: ServiceParams): Promise<Result>;
    _create(data: Data, params?: ServiceParams): Promise<Result>;
    _create(data: Data[], params?: ServiceParams): Promise<Result[]>;
    _create(data: Data | Data[], _params?: ServiceParams): Promise<Result | Result[]>;
    _update(id: Id, data: Data, params?: ServiceParams): Promise<Result>;
    _patch(id: null, data: PatchData | Partial<Result>, params?: ServiceParams): Promise<Result[]>;
    _patch(id: Id, data: PatchData | Partial<Result>, params?: ServiceParams): Promise<Result>;
    _patch(id: NullableId, data: PatchData | Partial<Result>, _params?: ServiceParams): Promise<Result | Result[]>;
    _remove(id: null, params?: ServiceParams): Promise<Result[]>;
    _remove(id: Id, params?: ServiceParams): Promise<Result>;
    _remove(id: NullableId, _params?: ServiceParams): Promise<Result | Result[]>;
}