spring TransactionCallbackWithoutResult 源码
spring TransactionCallbackWithoutResult 代码
文件路径：/spring-tx/src/main/java/org/springframework/transaction/support/TransactionCallbackWithoutResult.java
/*
* Copyright 2002-2017 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.support;
import org.springframework.lang.Nullable;
import org.springframework.transaction.TransactionStatus;
/**
* Simple convenience class for TransactionCallback implementation.
* Allows for implementing a doInTransaction version without result,
* i.e. without the need for a return statement.
*
* @author Juergen Hoeller
* @since 28.03.2003
* @see TransactionTemplate
*/
public abstract class TransactionCallbackWithoutResult implements TransactionCallback<Object> {
@Override
@Nullable
public final Object doInTransaction(TransactionStatus status) {
doInTransactionWithoutResult(status);
return null;
}
/**
* Gets called by {@code TransactionTemplate.execute} 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.
* <p>A RuntimeException thrown by the callback is treated as application
* exception that enforces a rollback. An exception gets propagated to the
* caller of the template.
* <p>Note when using JTA: JTA transactions only work with transactional
* JNDI resources, so implementations need to use such resources if they
* want transaction support.
* @param status associated transaction status
* @see TransactionTemplate#execute
*/
protected abstract void doInTransactionWithoutResult(TransactionStatus status);
}
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