/**
 * Copyright 2017-2020 Plexus Interop Deutsche Bank AG
 * SPDX-License-Identifier: Apache-2.0
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { Observer } from './Observer';
import { Logger } from '../logger';
/**
 * Saves interraction with Observer, until real Observer arrives
 */
export declare class BufferedObserver<T> implements Observer<T> {
    readonly limit: number;
    private readonly log;
    private baseObserver;
    private buffer;
    private receivedError;
    private completed;
    constructor(limit?: number, log?: Logger);
    setObserver(observer: Observer<T>): void;
    next(value: T): void;
    error(err: any): void;
    complete(): void;
    clear(): void;
}