001/* 002 * Copyright 2002-2017 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.transaction.support; 018 019import org.springframework.transaction.TransactionStatus; 020 021/** 022 * Simple convenience class for TransactionCallback implementation. 023 * Allows for implementing a doInTransaction version without result, 024 * i.e. without the need for a return statement. 025 * 026 * @author Juergen Hoeller 027 * @since 28.03.2003 028 * @see TransactionTemplate 029 */ 030public abstract class TransactionCallbackWithoutResult implements TransactionCallback<Object> { 031 032 @Override 033 public final Object doInTransaction(TransactionStatus status) { 034 doInTransactionWithoutResult(status); 035 return null; 036 } 037 038 /** 039 * Gets called by {@code TransactionTemplate.execute} within a transactional 040 * context. Does not need to care about transactions itself, although it can retrieve 041 * and influence the status of the current transaction via the given status object, 042 * e.g. setting rollback-only. 043 * <p>A RuntimeException thrown by the callback is treated as application 044 * exception that enforces a rollback. An exception gets propagated to the 045 * caller of the template. 046 * <p>Note when using JTA: JTA transactions only work with transactional 047 * JNDI resources, so implementations need to use such resources if they 048 * want transaction support. 049 * @param status associated transaction status 050 * @see TransactionTemplate#execute 051 */ 052 protected abstract void doInTransactionWithoutResult(TransactionStatus status); 053 054}