import { QueryData, QueryDataSchema } from './query';
export interface IBaseDBItem {
    id: string;
    createdAt?: number;
    updatedAt?: number;
    [key: string]: any;
}
export declare const baseDBMethods: string[];
export declare abstract class BaseDBAdapter<IInitializeParams> {
    params: IInitializeParams;
    abstract initialize(params: IInitializeParams): Promise<void>;
    abstract close(): Promise<void>;
    abstract create(table: string, items: IBaseDBItem[]): Promise<void>;
    abstract update(table: string, items: IBaseDBItem[]): Promise<void>;
    abstract index(table: string, indexName: string, keys?: string[]): void;
    abstract count(data: QueryData<QueryDataSchema>): Promise<number>;
    abstract get(data: QueryData<QueryDataSchema>): Promise<IBaseDBItem>;
    abstract delete(data: QueryData<QueryDataSchema>): Promise<void>;
    abstract find(data: QueryData<QueryDataSchema>): Promise<IBaseDBItem[]>;
    abstract subscribe(data: QueryData<QueryDataSchema>, callback: (oldValue: IBaseDBItem, newValue: IBaseDBItem) => any, onError: (reason: any) => any): (() => any) | Promise<() => any>;
}