spring TransactionCallback 源码
spring TransactionCallback 代码
文件路径：/spring-tx/src/main/java/org/springframework/transaction/reactive/TransactionCallback.java
/*
* Copyright 2002-2021 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.transaction.reactive;
import org.reactivestreams.Publisher;
import org.springframework.transaction.ReactiveTransaction;
/**
* Callback interface for reactive transactional code. Used with {@link TransactionalOperator}'s
* {@code execute} method, often as anonymous class within a method implementation.
*
* <p>Typically used to assemble various calls to transaction-unaware data access
* services into a higher-level service method with transaction demarcation. As an
* alternative, consider the use of declarative transaction demarcation (e.g. through
* Spring's {@link org.springframework.transaction.annotation.Transactional} annotation).
*
* @author Mark Paluch
* @author Juergen Hoeller
* @since 5.2
* @param <T> the result type
* @see TransactionalOperator
*/
@FunctionalInterface
public interface TransactionCallback<T> {
/**
* Gets called by {@link TransactionalOperator} within a transactional context.
* Does not need to care about transactions itself, although it can retrieve and
* influence the status of the current transaction via the given status object,
* e.g. setting rollback-only.
* @param status associated transaction status
* @return a result publisher
* @see TransactionalOperator#transactional
*/
Publisher<T> doInTransaction(ReactiveTransaction status);
}
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