/*
 * Copyright (c) Huawei Technologies Co., Ltd. 2021-2021. All rights reserved.
 */
import { CloudDBZoneQueryPolicy } from "./enums";
import { CloudDBZoneConfig, CloudDBZoneSnapshot, CloudDBZoneSubscribeSnapshot, QueryObject, Transaction, TransactionResult } from "./interfaces";
export default class AGCCloudDBZone {
    private readonly _id;
    constructor(id: string);
    /**
     * Obtains the id of current Cloud DB zone instance.
     */
    get id(): string;
    /**
     * Obtains the current configuration information of Cloud DB zone.
     * @returns A CloudDBZoneConfig object.
     */
    getCloudDBZoneConfig(): Promise<CloudDBZoneConfig>;
    /**
     * Writes a group of objects to the current Cloud DB zone in batches.
     * @param className Name of the object type.
     * @param cloudDBZoneObjectArray Object datas to be written.
     * @returns Number of objects that are successfully written.
     */
    executeUpsert(className: string, cloudDBZoneObjectArray: any[]): Promise<number>;
    /**
     * Deletes a group of Cloud DB zone objects whose primary key values are the same as those of the input object list in batches.
     * @param className Name of the object type.
     * @param cloudDBZoneObjectArray Object datas to be deleted.
     * @returns Number of objects that are successfully deleted.
     */
    executeDelete(className: string, cloudDBZoneObjectArray: any[]): Promise<number>;
    /**
     * Queries objects that meet specified conditions in Cloud DB zone and encapsulates the query result set into a CloudDBZoneSnapshot.
     * @param queryObject A QueryObject object, which indicates the query condition.
     * @param queryPolicy Query policy, which specifies the data source to be queried.
     * @returns CloudDBZoneSnapshot object that encapsulates the query result set.
     */
    executeQuery(queryObject: QueryObject, queryPolicy: CloudDBZoneQueryPolicy): Promise<CloudDBZoneSnapshot>;
    /**
     * Queries objects that meet specified conditions in Cloud DB zone and returns the average value of specified fields.
     * @param queryObject A QueryObject object, which indicates the query condition.
     * @param fieldName Specifies the name of the fields whose average value needs to be calculated in the query object.
     * @param queryPolicy Query policy, which specifies the data source to be queried.
     * @returns The avarage value.
     */
    executeAverageQuery(queryObject: QueryObject, fieldName: string, queryPolicy: CloudDBZoneQueryPolicy): Promise<string>;
    /**
     * Queries objects that meet specific conditions and returns the sum of data record values of specified fields in the Cloud DB zone.
     * @param queryObject A QueryObject object, which indicates the query condition.
     * @param fieldName Specifies the name of the fields whose sum value needs to be calculated in the query object.
     * @param queryPolicy Query policy, which specifies the data source to be queried.
     * @returns The sum result.
     */
    executeSumQuery(queryObject: QueryObject, fieldName: string, queryPolicy: CloudDBZoneQueryPolicy): Promise<string>;
    /**
     * Queries the objects that meet specific conditions and returns the maximum value of the data records in the specified fields in the Cloud DB zone.
     * @param queryObject A QueryObject object, which indicates the query condition.
     * @param fieldName Specifies the name of the fields whose max value needs to be calculated in the query object.
     * @param queryPolicy Query policy, which specifies the data source to be queried.
     * @returns The maximum value.
     */
    executeMaximumQuery(queryObject: QueryObject, fieldName: string, queryPolicy: CloudDBZoneQueryPolicy): Promise<string>;
    /**
     * Queries the objects that meet specific conditions in the Cloud DB zone and returns the minimum value of the data records in the designated fields.
     * @param queryObject A QueryObject object, which indicates the query condition.
     * @param fieldName Specifies the name of the fields whose min value needs to be calculated in the query object.
     * @param queryPolicy Query policy, which specifies the data source to be queried.
     * @returns The minimum value.
     */
    executeMinimalQuery(queryObject: QueryObject, fieldName: string, queryPolicy: CloudDBZoneQueryPolicy): Promise<string>;
    /**
     * Queries the objects that meet specific conditions in the Cloud DB zone and returns the number of data records of the specified fields.
     * @param queryObject A QueryObject object, which indicates the query condition.
     * @param fieldName Specifies the name of the fields whose count value needs to be calculated in the query object.
     * @param queryPolicy Query policy, which specifies the data source to be queried.
     * @returns The number of data result.
     */
    executeCountQuery(queryObject: QueryObject, fieldName: string, queryPolicy: CloudDBZoneQueryPolicy): Promise<string>;
    /**
     * Queries all object data that meets specified conditions in Cloud DB but has not been synchronized to the cloud, and encapsulates the query result set into a CloudDBZoneSnapshot.
     * @param queryObject A QueryObject object, which indicates the query condition.
     * @returns CloudDBZoneSnapshot object that encapsulates the query result set.
     */
    executeQueryUnsynced(queryObject: QueryObject): Promise<CloudDBZoneSnapshot>;
    /**
     * Executes a specified transaction operation.
     * @param transactions You can encapsulate a group of operations in the array,
     * and then use this interface to implement the functions of adding, deleting, modifying,
     * and querying operations in a transaction.
     * @returns An object, which encapsulates the execution status, result,
     * and exception information of runTransaction().
     * For example, you can call the isSuccessful property based on this
     * object to check whether the query operation is successful.
     */
    runTransaction(transactions: Transaction[]): Promise<TransactionResult>;
    /**
     * Registers a listener for a specified object on the device or cloud.
     * When the data of the object that is listened on is changed, the registered onSnapshotUpdate event is triggered.
     * @param queryObject A QueryObject object, which indicates the query condition.
     * @param queryPolicy Query policy, which specifies the data source to be queried.
     * @param callback Callback function to be called when listener is triggered.
     * @returns A ListenerHandler object that remains valid until the remove() method
     * of the ListenerHandler class is explicitly called by the developer.
     */
    subscribeSnapshot(queryObject: QueryObject, queryPolicy: CloudDBZoneQueryPolicy, callback: (cloudDBZoneSnapshot: CloudDBZoneSubscribeSnapshot) => void): Promise<ListenerHandler>;
}
declare class ListenerHandler {
    private readonly zoneId;
    private readonly listenerId;
    constructor(zoneId: string, listenerId: string);
    /**
     * Deregisters the snapshot listener.
     */
    remove(): Promise<void>;
}
export {};