/*! Copyright (c) 2018 Siemens AG. Licensed under the MIT License. */
import { Observable } from "rxjs";
import { CoatyObject, CoreType, Uuid } from "..";
import { Controller } from "./controller";
/**
 * Discovers objects by given object Ids and maintains a local cache of
 * resolved objects. The controller will also update existing objects in its
 * cache whenever such objects are advertised by other parties.
 *
 * To realize an object cache controller for a specific core types or for specific objects,
 * define a custom controller class that extends this abstract class and
 * set the core type and/or the filter predicate of objects to be cached in the `OnInit` method.
 */
export declare abstract class ObjectCacheController<T extends CoatyObject> extends Controller {
    private _objectCache;
    private _pendingRequests;
    private _coreType;
    private _objectFilter;
    onInit(): void;
    onCommunicationManagerStarting(): void;
    /**
     * Gets an observable that emits the first object resolved for the given
     * object Id, then completes.
     *
     * @param objectId the object Id of the object to resolve
     * @param shouldResolvePending true if an already pending resolution should be
     * rediscovered; false otherwise (default)
     */
    resolveObject(objectId: Uuid, shouldResolvePending?: boolean): Observable<T>;
    /**
     * Sets a filter predicate on objects to be resolved.
     *
     * To filter out specific objects or object types you should set an object
     * filter once in the `OnInit` method of your custom controller.
     */
    set objectFilter(predicate: (obj: T) => boolean);
    /**
     * Gets the core type of objects to be cached.
     * The default value returned is `CoatyObject`.
     */
    protected get coreType(): CoreType;
    /**
     * Sets the core type of objects to be cached.
     *
     * To filter out specific object core types you should set
     * the core type once in the `OnInit`
     * method of your custom controller.
     */
    protected set coreType(value: CoreType);
    private _observeObjectAdvertisements;
}