org.springframework.data.redis.core.ReactiveRedisSessionCallback Maven / Gradle / Ivy
/*
* Copyright 2021-2022 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 wants to use the same {@link ReactiveRedisConnection} avoiding connection
* allocation overhead upon each Template API method call. Allows to execute any number of operations on a single
* {@link ReactiveRedisConnection}, using any type and number of commands.
*
* This is particularly useful for issuing multiple calls on the same connection.
*
* @param
* @author Mark Paluch
* @since 2.6
* @see ReactiveRedisOperations#executeInSession(ReactiveRedisSessionCallback)
*/
public interface ReactiveRedisSessionCallback {
/**
* Gets called by {@link ReactiveRedisOperations#executeInSession(ReactiveRedisSessionCallback)} with an active Redis
* connection. Does not need to care about activating or closing the {@link ReactiveRedisConnection}.
*
* Allows for returning a result object created within the callback, i.e. a domain object or a collection of domain
* objects.
*
* @param operations template associated with a connection.
* @return a result object {@link Publisher}.
* @throws DataAccessException in case of custom exceptions.
*/
Publisher doWithOperations(ReactiveRedisOperations operations) throws DataAccessException;
}