import type { Data } from "../../util/data.js";
import type { Identifier, Item, Items, ItemsSequence, OptionalItem, OptionalItemSequence } from "../../util/item.js";
import type { Query } from "../../util/query.js";
import type { Sourceable } from "../../util/source.js";
import type { Updates } from "../../util/update.js";
import type { Collection } from "../collection/Collection.js";
import { DBProvider } from "./DBProvider.js";
import { MemoryDBProvider } from "./MemoryDBProvider.js";
/** Keep a copy of asynchronous remote data in a local synchronous cache. */
export declare class CacheDBProvider<I extends Identifier, T extends Data> extends DBProvider<I, T> implements Sourceable<DBProvider<I, T>> {
    readonly source: DBProvider<I, T>;
    readonly memory: MemoryDBProvider<I, T>;
    constructor(source: DBProvider<I, T>, cache?: MemoryDBProvider<I, T>);
    getItem<II extends I, TT extends T>(collection: Collection<string, II, TT>, id: II): Promise<OptionalItem<II, TT>>;
    getItemSequence<II extends I, TT extends T>(collection: Collection<string, II, TT>, id: II): OptionalItemSequence<II, TT>;
    addItem<II extends I, TT extends T>(collection: Collection<string, II, TT>, data: TT): Promise<II>;
    setItem<II extends I, TT extends T>(collection: Collection<string, II, TT>, id: II, data: TT): Promise<void>;
    updateItem<II extends I, TT extends T>(collection: Collection<string, II, TT>, id: II, updates: Updates<Item<II, TT>>): Promise<void>;
    deleteItem<II extends I, TT extends T>(collection: Collection<string, II, TT>, id: II): Promise<void>;
    countQuery<II extends I, TT extends T>(collection: Collection<string, II, TT>, query?: Query<Item<II, TT>>): Promise<number>;
    getQuery<II extends I, TT extends T>(collection: Collection<string, II, TT>, query?: Query<Item<II, TT>>): Promise<Items<II, TT>>;
    getQuerySequence<II extends I, TT extends T>(collection: Collection<string, II, TT>, query?: Query<Item<II, TT>>): ItemsSequence<II, TT>;
    setQuery<II extends I, TT extends T>(collection: Collection<string, II, TT>, query: Query<Item<II, TT>>, data: TT): Promise<void>;
    updateQuery<II extends I, TT extends T>(collection: Collection<string, II, TT>, query: Query<Item<II, TT>>, updates: Updates<TT>): Promise<void>;
    deleteQuery<II extends I, TT extends T>(collection: Collection<string, II, TT>, query: Query<Item<II, TT>>): Promise<void>;
    [Symbol.asyncDispose](): Promise<void>;
}