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HiveMQ MQTT Client is an MQTT 5.0 and MQTT 3.1.1 compatible and feature-rich high-performance Java client library with different API flavours and backpressure support
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/*
* Copyright 2018-present HiveMQ and the HiveMQ Community
*
* 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.
*/
package com.hivemq.client.rx.reactivestreams;
import org.jetbrains.annotations.NotNull;
import org.reactivestreams.Publisher;
import org.reactivestreams.Subscriber;
/**
* A {@link Publisher} which emits a flow of items of type {@link T} and a single item of type {@link S}.
*
* @param the type of the stream of items.
* @param the type of the single item.
* @author Silvio Giebl
* @see Publisher
*/
public interface PublisherWithSingle extends Publisher {
/**
* {@link Publisher#subscribe(Subscriber) Subscribes} to this {@link PublisherWithSingle}.
*
* In addition to signalling the stream of items via {@link WithSingleSubscriber#onNext(Object) onNext}, the single
* item is signalled via {@link WithSingleSubscriber#onSingle(Object) onSingle}.
*
* @param subscriber the {@link WithSingleSubscriber} that will consume signals from this {@link
* PublisherWithSingle}.
* @see Publisher#subscribe(Subscriber)
*/
void subscribeBoth(@NotNull WithSingleSubscriber subscriber);
}