org.openmrs.module.sync.test.ExampleTransactionalServiceImpl.java Source code

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Here is the source code for org.openmrs.module.sync.test.ExampleTransactionalServiceImpl.java

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/**
 * The contents of this file are subject to the OpenMRS Public License
 * Version 1.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://license.openmrs.org
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
 * License for the specific language governing rights and limitations
 * under the License.
 *
 * Copyright (C) OpenMRS, LLC.  All Rights Reserved.
 */
package org.openmrs.module.sync.test;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.SessionFactory;
import org.hibernate.classic.Session;
import org.openmrs.OpenmrsObject;
import org.openmrs.api.context.Context;
import org.openmrs.api.impl.BaseOpenmrsService;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

/**
 *  Example service to test out various transactional use cases of hibernate and spring
 */
public class ExampleTransactionalServiceImpl extends BaseOpenmrsService implements ExampleTransactionalService {

    protected Log log = LogFactory.getLog(getClass());

    private SessionFactory sessionFactory;

    public Session session() {
        return sessionFactory.getCurrentSession();
    }

    /**
     * Example read-only transaction
     */
    @Transactional(readOnly = true)
    public <T extends OpenmrsObject> T getObject(Class<T> type, Integer id) {
        return (T) session().get(type, id);
    }

    /**
     * Example save without transaction annotation
     */
    public void saveObjectNoTransaction(OpenmrsObject openmrsObject) {
        session().save(openmrsObject);
    }

    /**
     * Example single transaction
     */
    @Transactional
    public void saveObjectInTransaction(OpenmrsObject openmrsObject) {
        session().save(openmrsObject);
    }

    /**
     * Example single transaction that throws an Exception
     */
    @Transactional
    public void saveObjectInTransactionWithException(OpenmrsObject openmrsObject) {
        throw new IllegalArgumentException("Test Exception");
    }

    /**
     * Example single transaction
     */
    @Transactional(propagation = Propagation.REQUIRES_NEW)
    public void saveObjectInNewTransaction(OpenmrsObject openmrsObject) {
        session().save(openmrsObject);
    }

    /**
     * Example nested transaction
     */
    @Transactional
    public void saveAllObjectsInSingleTransaction(OpenmrsObject... objects) {
        for (OpenmrsObject o : objects) {
            Context.getService(ExampleTransactionalService.class).saveObjectInTransaction(o);
        }
    }

    /**
     * Example nested transaction
     */
    @Transactional
    public void saveAllObjectsInNewTransactions(OpenmrsObject... objects) {
        for (OpenmrsObject o : objects) {
            Context.getService(ExampleTransactionalService.class).saveObjectInNewTransaction(o);
        }
    }

    public void setSessionFactory(SessionFactory sessionFactory) {
        this.sessionFactory = sessionFactory;
    }
}