spring-kafka RetryTopicHeaders 源码
spring-kafka RetryTopicHeaders 代码
文件路径:/spring-kafka/src/main/java/org/springframework/kafka/retrytopic/RetryTopicHeaders.java
/*
* Copyright 2018-2021 the original author or authors.
*
* 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
*
* https://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 org.springframework.kafka.retrytopic;
/**
*
* Contains the headers that will be used in the forwarded messages.
*
* @author Tomaz Fernandes
* @since 2.7
*
*/
public abstract class RetryTopicHeaders {
/**
* The default header for the backoff duetimestamp.
*/
public static final String DEFAULT_HEADER_BACKOFF_TIMESTAMP = "retry_topic-backoff-timestamp";
/**
* The default header for the attempts.
*/
public static final String DEFAULT_HEADER_ATTEMPTS = "retry_topic-attempts";
/**
* The default header for the original message's timestamp.
*/
public static final String DEFAULT_HEADER_ORIGINAL_TIMESTAMP = "retry_topic-original-timestamp";
}
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