import { ClientStorage, StorageItem } from "../types/storage";
interface ObjectStoreCreationOptions {
    autoIncrement?: boolean;
    keyPath?: string;
}
type ObjectItemKey = string | number;
export default class IndexedDB implements ClientStorage {
    private _db?;
    private _localStorageVersionKey;
    private _name;
    private _objectStore?;
    private _objectStoreOptions?;
    private _objectStoreName;
    private _transactionMode;
    private _version;
    constructor(objectStoreName: string, objectStoreCreationOptions?: ObjectStoreCreationOptions, transactionMode?: IDBTransactionMode);
    clear(): void;
    private createObjectStore;
    deleteObjectStore(): void;
    getItem(key: ObjectItemKey): Promise<StorageItem | undefined>;
    getObjectStoreItem(indexName: string, indexValue: string | number): Promise<Object | undefined>;
    private getStoredVersionNumber;
    private handleDeleteRequest;
    private onError;
    private open;
    private openRequestEventsHandler;
    removeItem(key: ObjectItemKey): void;
    removeItems(excludedItems?: any[]): void;
    private requestEventsHandler;
    private saveVersion;
    setItem(item: Object, index?: string[]): void;
    updateItem(item: Object): void;
}
export {};