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// Copyright (c) 2020-2021 VMware, Inc. or its affiliates. All rights reserved.
//
// This software, the RabbitMQ Stream Java client library, is dual-licensed under the
// Mozilla Public License 2.0 ("MPL"), and the Apache License version 2 ("ASL").
// For the MPL, please see LICENSE-MPL-RabbitMQ. For the ASL,
// please see LICENSE-APACHE2.
//
// This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND,
// either express or implied. See the LICENSE file for specific language governing
// rights and limitations of this software.
//
// If you have any questions regarding licensing, please contact us at
// [email protected].
package com.rabbitmq.stream;
/**
* API to send message to a RabbitMQ Stream.
*
* Instances are created and configured with a {@link ProducerBuilder}.
*
*
Implementations are expected to be thread-safe, RabbitMQ Streams' are.
*
* @see ProducerBuilder
* @see Environment#producerBuilder()
*/
public interface Producer extends AutoCloseable {
/**
* Return a {@link MessageBuilder} to create a {@link Message}.
*
*
A {@link MessageBuilder} instance is meant to create only {@link Message} instance.
*
* @return a single-usage {@link MessageBuilder}
* @see MessageBuilder
*/
MessageBuilder messageBuilder();
/**
* Get the last publishing ID for a named producer.
*
*
The value can be mapped to a business index to restart publishing where a previous
* incarnation of the producer left off.
*
* @return the last publishing ID for this named producer
*/
long getLastPublishingId();
/**
* Publish a message.
*
* @param message the message
* @param confirmationHandler the callback when the message is confirmed or failed
*/
void send(Message message, ConfirmationHandler confirmationHandler);
/** Close the producer. */
@Override
void close();
}