001/*-
002 * #%L
003 * HAPI FHIR JPA Server
004 * %%
005 * Copyright (C) 2014 - 2024 Smile CDR, Inc.
006 * %%
007 * Licensed under the Apache License, Version 2.0 (the "License");
008 * you may not use this file except in compliance with the License.
009 * You may obtain a copy of the License at
010 *
011 *      http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 * #L%
019 */
020package ca.uhn.fhir.jpa.util;
021
022import ca.uhn.fhir.jpa.dao.tx.HapiTransactionService;
023import org.springframework.orm.jpa.JpaDialect;
024import org.springframework.orm.jpa.JpaTransactionManager;
025import org.springframework.orm.jpa.vendor.HibernateJpaDialect;
026
027public class JpaHapiTransactionService extends HapiTransactionService {
028
029        private volatile Boolean myCustomIsolationSupported;
030
031        public JpaHapiTransactionService() {}
032
033        @Override
034        public boolean isCustomIsolationSupported() {
035                if (myCustomIsolationSupported == null) {
036                        if (myTransactionManager instanceof JpaTransactionManager) {
037                                JpaDialect jpaDialect = ((JpaTransactionManager) myTransactionManager).getJpaDialect();
038                                myCustomIsolationSupported = (jpaDialect instanceof HibernateJpaDialect);
039                        } else {
040                                myCustomIsolationSupported = false;
041                        }
042                }
043                return myCustomIsolationSupported;
044        }
045}