spring-data-redis MessageListener 源码
spring-data-redis MessageListener 代码
文件路径：/src/main/java/org/springframework/data/redis/connection/MessageListener.java
/*
* Copyright 2011-2022 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.data.redis.connection;
import org.springframework.lang.Nullable;
/**
* Listener of messages published in Redis. A MessageListener can implement {@link SubscriptionListener} to receive
* notifications for subscription states.
*
* @author Costin Leau
* @author Christoph Strobl
* @see SubscriptionListener
*/
@FunctionalInterface
public interface MessageListener {
/**
* Callback for processing received objects through Redis.
*
* @param message message must not be {@literal null}.
* @param pattern pattern matching the channel (if specified) - can be {@literal null}.
*/
void onMessage(Message message, @Nullable byte[] pattern);
}
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