import { ReplaySubject, Observable } from 'rxjs';
import { Delta, Predicate } from './models';
import { StoreConfig } from './models/StoreConfig';
export declare const ESTORE_CONFIG_DEFAULT: StoreConfig;
export declare abstract class AbstractStore<E> {
    /**
     * The configuration for the store.
     */
    config: StoreConfig;
    constructor(config?: StoreConfig);
    /**
     * Notifies observers of the store query.
     */
    protected notifyQuery: ReplaySubject<string>;
    /**
     * The current query state.
     */
    protected _query: string;
    /**
     * Sets the current query state and notifies observers.
     */
    set query(query: string);
    /**
     * @return A snapshot of the query state.
     */
    get query(): string;
    /**
     * Observe the query.
     * @example
       <pre>
      let query$ = source.observeQuery();
      </pre>
    */
    observeQuery(): Observable<string>;
    /**
     * The current id key for the EStore instance.
     * @return this.config.idKey;
     */
    get ID_KEY(): string;
    /**
     * The current guid key for the EStore instance.
     * @return this.config.guidKey;
     */
    get GUID_KEY(): string;
    /**
     * Primary index for the stores elements.
     */
    entries: Map<string, E>;
    /**
     * The element entries that are keyed by
     * an id generated on the server.
     */
    idEntries: Map<string, E>;
    /**
     * Create notifications that broacast
     * the entire set of entries.
     */
    protected notify: ReplaySubject<E[]>;
    /**
     * Create notifications that broacast
     * store or slice delta state changes.
     */
    protected notifyDelta: ReplaySubject<Delta<E>>;
    /**
     * Call all the notifiers at once.
     *
     * @param v
     * @param delta
     */
    protected notifyAll(v: E[], delta: Delta<E>): void;
    /**
     * Observe store state changes.
     *
     * @param sort Optional sorting function yielding a sorted observable.
     * @example
     * ```
     * let todos$ = source.observe();
     * //or with a sort by title function
     * let todos$ = source.observe((a, b)=>(a.title > b.title ? -1 : 1));
     * ```
     */
    observe(sort?: (a: any, b: any) => number): Observable<E[]>;
    /**
     * An Observable<E[]> reference
     * to the entities in the store or
     * Slice instance.
     */
    obs: Observable<E[]>;
    /**
     * Observe delta updates.
     *
     * @example
     * ```
     * let todos$ = source.observeDelta();
     * ```
     */
    observeDelta(): Observable<Delta<E>>;
    /**
     * Check whether the store is empty.
     *
     * @return A hot {@link Observable} that indicates whether the store is empty.
     *
     * @example
     * ```
     * const empty$:Observable<boolean> = source.isEmpty();
     * ```
     */
    isEmpty(): Observable<boolean>;
    /**
     * Check whether the store is empty.
     *
     * @return A snapshot that indicates whether the store is empty.
     *
     * @example
     * ```
     * const empty:boolean = source.isEmptySnapshot();
     * ```
     */
    isEmptySnapshot(): boolean;
    /**
     * Returns the number of entries contained.
     * @param p The predicate to apply in order to filter the count
     *
     * @example
     * ```
     * const completePredicate: Predicate<Todo> = function pred(t: Todo) {
     *   return t.complete;
     * };
     *
     * const incompletePredicate: Predicate<Todo> = function pred(t: Todo) {
     *   return !t.complete;
     * };
     *
     * store.count().subscribe((c) => {
     *   console.log(`The observed count of Todo entities is ${c}`);
     * });
     * store.count(incompletePredicate).subscribe((c) => {
     *   console.log(`The observed count of incomplete Todo enttiies is ${c}`);
     * });
     * store.count(completePredicate).subscribe((c) => {
     *   console.log(`The observed count of complete Todo enttiies is ${c}`);
     * });
     * ```
     */
    count(p?: Predicate<E>): Observable<number>;
    /**
     * Returns a snapshot of the number of entries contained in the store.
     * @param p The predicate to apply in order to filter the count
     *
     * @example
     * ```
     * const completePredicate: Predicate<Todo> = function pred(t: Todo) {
     *   return t.complete;
     * };
     *
     * const incompletePredicate: Predicate<Todo> = function pred(t: Todo) {
     *   return !t.complete;
     * };
     *
     * const snapshotCount = store.countSnapshot(completePredicate);
     * console.log(`The count is ${snapshotCount}`);
     *
     * const completeSnapshotCount = store.countSnapshot(completePredicate);
     * console.log(
     *   `The complete Todo Entity Snapshot count is ${completeSnapshotCount}`
     * );
     *
     * const incompleteSnapshotCount = store.countSnapshot(incompletePredicate);
     * console.log(
     *   `The incomplete Todo Entity Snapshot count is ${incompleteSnapshotCount}`
     * );
     * ```
     */
    countSnapshot(p?: Predicate<E>): number;
    /**
     * Snapshot of all entries.
     *
     * @return Snapshot array of all the elements the entities the store contains.
     *
     * @example Observe a snapshot of all the entities in the store.
     *
     * ```
     * let selectedTodos:Todo[] = source.allSnapshot();
     * ```
     */
    allSnapshot(): E[];
    /**
     * Returns true if the entries contain the identified instance.
     *
     * @param target Either an instance of type `E` or a `guid` identifying the instance.
     * @param byId Whether the lookup should be performed with the `id` key rather than the `guid`.
     * @returns true if the instance identified by the guid exists, false otherwise.
     *
     * @example
     * ```
     * let contains:boolean = source.contains(guid);
     * ```
     */
    contains(target: E | string): boolean;
    /**
     * Returns true if the entries contain the identified instance.
     *
     * @param target Either an instance of type `E` or a `id` identifying the instance.
     * @returns true if the instance identified by the `id` exists, false otherwise.
     *
     * @example
     * ```
     * let contains:boolean = source.contains(guid);
     * ```
     */
    containsById(target: E | string): boolean;
    /**
     * Find and return the entity identified by the GUID parameter
     * if it exists and return it.
     *
     * @param guid
     * @return The entity instance if it exists, null otherwise
     *
     * @example
     * ```
     * const globalID: string = '1';
     * let findThisTodo = new Todo(false, 'Find this Todo', globalID);
     * store.post(findThisTodo);
     * const todo = store.findOne(globalID);
     * ```
     */
    findOne(guid: string): E | undefined;
    /**
     * Find and return the entity identified by the ID parameter
     * if it exists and return it.
     *
     * @param id
     * @return The entity instance if it exists, null otherwise
     *
     * @example
     * ```
     * const todoLater: Todo = new Todo(false, 'Do me later.');
     * todoLater.id = 'findMe';
     * store.post(todoLater);
     * const postedTodo = store.findOneByID('findMe');
     * ```
     */
    findOneByID(id: string): E | undefined;
    /**
     * Snapshot of the entries that match the predicate.
     *
     * @param p The predicate used to query for the selection.
     * @return A snapshot array containing the entities that match the predicate.
     *
     * @example Select all the Todo instances where the title length is greater than 100.
     * ```
     * let todos:Todo[]=store.select(todo=>todo.title.length>100);
     * ```
     */
    select(p: Predicate<E>): E[];
    /**
     * Compare entities by GUID
     *
     * @param e1 The first entity
     * @param e2 The second entity
     * @return true if the two entities have equal GUID ids
     *
     * @example Compare todo1 with todo2 by gid.
     * ```
     * if (equalsByGUID(todo1, todo2)){...};
     * ```
     */
    equalsByGUID(e1: any, e2: any): boolean;
    /**
     * Compare entities by ID
     *
     * @param e1 The first entity
     * @param e2 The second entity
     * @return true if the two entities have equal ID ids
     *
     * @example Compare todo1 with todo2 by id.
     *
     * ```
     * if (equalsByID(todo1, todo2)){...};
     * ```
     */
    equalsByID(e1: any, e2: any): boolean;
    /**
     * Call destroy when disposing of the store, as it
     * completes all {@link ReplaySubject} instances.
     *
     * @example
     * ```
     * store.destroy();
     * ```
     */
    destroy(): void;
}