import { Id, Paginated, Query } from '@feathersjs/feathers';
import { AdapterParams, AdapterServiceOptions, InternalServiceMethods, PaginationOptions } from './declarations';
export declare const VALIDATED: unique symbol;
/**
 * An abstract base class that a database adapter can extend from to implement the
 * `__find`, `__get`, `__update`, `__patch` and `__remove` methods.
 */
export declare abstract class AdapterBase<Result = any, Data = Result, PatchData = Partial<Data>, ServiceParams extends AdapterParams = AdapterParams, Options extends AdapterServiceOptions = AdapterServiceOptions, IdType = Id> implements InternalServiceMethods<Result, Data, PatchData, ServiceParams, IdType> {
    options: Options;
    constructor(options: Options);
    get id(): string;
    get events(): string[];
    /**
     * Check if this adapter allows multiple updates for a method.
     * @param method The method name to check.
     * @param params The service call params.
     * @returns Wether or not multiple updates are allowed.
     */
    allowsMulti(method: string, params?: ServiceParams): boolean | string[];
    /**
     * Returns the combined options for a service call. Options will be merged
     * with `this.options` and `params.adapter` for dynamic overrides.
     *
     * @param params The parameters for the service method call
     * @returns The actual options for this call
     */
    getOptions(params: ServiceParams): Options;
    /**
     * Returns a sanitized version of `params.query`, converting filter values
     * (like $limit and $skip) into the expected type. Will throw an error if
     * a `$` prefixed filter or operator value that is not allowed in `filters`
     * or `operators` is encountered.
     *
     * @param params The service call parameter.
     * @returns A new object containing the sanitized query.
     */
    sanitizeQuery(params?: ServiceParams): Promise<Query>;
    /**
     * Retrieve all resources from this service.
     * Does not sanitize the query and should only be used on the server.
     *
     * @param _params - Service call parameters {@link ServiceParams}
     */
    abstract _find(_params?: ServiceParams & {
        paginate?: PaginationOptions;
    }): Promise<Paginated<Result>>;
    abstract _find(_params?: ServiceParams & {
        paginate: false;
    }): Promise<Result[]>;
    abstract _find(params?: ServiceParams): Promise<Result[] | Paginated<Result>>;
    /**
     * Retrieve a single resource matching the given ID, skipping any service-level hooks.
     * Does not sanitize the query and should only be used on the server.
     *
     * @param id - ID of the resource to locate
     * @param params - Service call parameters {@link ServiceParams}
     * @see {@link HookLessServiceMethods}
     * @see {@link https://docs.feathersjs.com/api/services.html#get-id-params|Feathers API Documentation: .get(id, params)}
     */
    abstract _get(id: IdType, params?: ServiceParams): Promise<Result>;
    /**
     * Create a new resource for this service, skipping any service-level hooks.
     * Does not check if multiple updates are allowed and should only be used on the server.
     *
     * @param data - Data to insert into this service.
     * @param params - Service call parameters {@link ServiceParams}
     * @see {@link HookLessServiceMethods}
     * @see {@link https://docs.feathersjs.com/api/services.html#create-data-params|Feathers API Documentation: .create(data, params)}
     */
    abstract _create(data: Data, params?: ServiceParams): Promise<Result>;
    abstract _create(data: Data[], params?: ServiceParams): Promise<Result[]>;
    abstract _create(data: Data | Data[], params?: ServiceParams): Promise<Result | Result[]>;
    /**
     * Completely replace the resource identified by id, skipping any service-level hooks.
     * Does not sanitize the query and should only be used on the server.
     *
     * @param id - ID of the resource to be updated
     * @param data - Data to be put in place of the current resource.
     * @param params - Service call parameters {@link ServiceParams}
     * @see {@link HookLessServiceMethods}
     * @see {@link https://docs.feathersjs.com/api/services.html#update-id-data-params|Feathers API Documentation: .update(id, data, params)}
     */
    abstract _update(id: IdType, data: Data, params?: ServiceParams): Promise<Result>;
    /**
     * Merge any resources matching the given ID with the given data, skipping any service-level hooks.
     * Does not sanitize the query and should only be used on the server.
     *
     * @param id - ID of the resource to be patched
     * @param data - Data to merge with the current resource.
     * @param params - Service call parameters {@link ServiceParams}
     * @see {@link HookLessServiceMethods}
     * @see {@link https://docs.feathersjs.com/api/services.html#patch-id-data-params|Feathers API Documentation: .patch(id, data, params)}
     */
    abstract _patch(id: null, data: PatchData, params?: ServiceParams): Promise<Result[]>;
    abstract _patch(id: IdType, data: PatchData, params?: ServiceParams): Promise<Result>;
    abstract _patch(id: IdType | null, data: PatchData, params?: ServiceParams): Promise<Result | Result[]>;
    /**
     * Remove resources matching the given ID from the this service, skipping any service-level hooks.
     * Does not sanitize query and should only be used on the server.
     *
     * @param id - ID of the resource to be removed
     * @param params - Service call parameters {@link ServiceParams}
     * @see {@link HookLessServiceMethods}
     * @see {@link https://docs.feathersjs.com/api/services.html#remove-id-params|Feathers API Documentation: .remove(id, params)}
     */
    abstract _remove(id: null, params?: ServiceParams): Promise<Result[]>;
    abstract _remove(id: IdType, params?: ServiceParams): Promise<Result>;
    abstract _remove(id: IdType | null, params?: ServiceParams): Promise<Result | Result[]>;
}