spring-data-redis ReactiveRedisCallback 源码
spring-data-redis ReactiveRedisCallback 代码
文件路径：/src/main/java/org/springframework/data/redis/core/ReactiveRedisCallback.java
/*
* Copyright 2017-2022 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.reactivestreams.Publisher;
import org.springframework.dao.DataAccessException;
import org.springframework.data.redis.connection.ReactiveRedisConnection;
/**
* Generic callback interface for code that operates on a low-level {@link ReactiveRedisConnection}. Allows to execute
* any number of operations on a single {@link ReactiveRedisConnection}, using any type and number of commands.
* <p>
* This is particularly useful for delegating to existing data access code that expects a
* {@link ReactiveRedisConnection} to work on. For newly written code, it is strongly recommended to use
* {@link ReactiveRedisOperations}'s more specific operations.
*
* @param <T>
* @author Mark Paluch
* @since 2.0
* @see ReactiveRedisOperations#execute(ReactiveRedisCallback)
*/
public interface ReactiveRedisCallback<T> {
/**
* Gets called by {@link ReactiveRedisTemplate#execute(ReactiveRedisCallback)} with an active Redis connection. Does
* not need to care about activating or closing the {@link ReactiveRedisConnection}.
* <p>
* Allows for returning a result object created within the callback, i.e. a domain object or a collection of domain
* objects.
*
* @param connection active Redis connection.
* @return a result object publisher
* @throws DataAccessException in case of custom exceptions
*/
Publisher<T> doInRedis(ReactiveRedisConnection connection) throws DataAccessException;
}
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