spring-data-redis RedisKeyspaceEvent 源码
spring-data-redis RedisKeyspaceEvent 代码
文件路径：/src/main/java/org/springframework/data/redis/core/RedisKeyspaceEvent.java
/*
* Copyright 2015-2022 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.core;
import org.springframework.context.ApplicationEvent;
import org.springframework.lang.Nullable;
/**
* Redis specific {@link ApplicationEvent} published when a key expires in Redis.
*
* @author Christoph Strobl
* @since 1.7
*/
public class RedisKeyspaceEvent extends ApplicationEvent {
private final @Nullable String channel;
/**
* Creates new {@link RedisKeyspaceEvent}.
*
* @param key The key that expired. Must not be {@literal null}.
*/
public RedisKeyspaceEvent(byte[] key) {
this(null, key);
}
/**
* Creates new {@link RedisKeyspaceEvent}.
*
* @param channel The source channel aka subscription topic. Can be {@literal null}.
* @param key The key that expired. Must not be {@literal null}.
* @since 1.8
*/
public RedisKeyspaceEvent(@Nullable String channel, byte[] key) {
super(key);
this.channel = channel;
}
public byte[] getSource() {
return (byte[]) super.getSource();
}
/**
* @return can be {@literal null}.
* @since 1.8
*/
@Nullable
public String getChannel() {
return this.channel;
}
}
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