All Downloads are FREE. Search and download functionalities are using the official Maven repository.

org.opencms.db.jpa.CmsDbContext Maven / Gradle / Ivy

Go to download

OpenCms is an enterprise-ready, easy to use website content management system based on Java and XML technology. Offering a complete set of features, OpenCms helps content managers worldwide to create and maintain beautiful websites fast and efficiently.

There is a newer version: 18.0
Show newest version
/*
 * This library is part of OpenCms -
 * the Open Source Content Management System
 *
 * Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com)
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * For further information about Alkacon Software, please see the
 * company website: http://www.alkacon.com
 *
 * For further information about OpenCms, please see the
 * project website: http://www.opencms.org
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package org.opencms.db.jpa;

import org.opencms.file.CmsRequestContext;
import org.opencms.file.CmsVfsException;
import org.opencms.i18n.CmsMessageContainer;
import org.opencms.main.CmsException;
import org.opencms.report.I_CmsReport;

import javax.persistence.EntityManager;

/**
 * Wraps context information to access the OpenCms database.

* * @since 8.0.0 */ public final class CmsDbContext extends org.opencms.db.CmsDbContext { /** The EntityManager instance for this context. */ protected EntityManager m_entityManager; /** Tells when the current transaction should be commit or rollback. */ protected boolean m_shouldCommit; /** * Creates a new, empty database context.

*/ public CmsDbContext() { this(null); } /** * Creates a new database context initialized with the given user request context.

* * @param context the current users request context */ public CmsDbContext(CmsRequestContext context) { super(context); m_entityManager = CmsSqlManager.getEntityManager(); m_shouldCommit = true; m_entityManager.getTransaction().begin(); } /** * Clears this database context.

*/ @Override public void clear() { if (m_shouldCommit) { commitAndClose(); } else { rollbackAndClose(); } CmsSqlManager.returnEntityManager(m_entityManager); m_requestContext = null; m_flexRequestContextInfo = null; } /** * Returns the entity manager of this db context.

* * @return the entity manager of this db context */ public EntityManager getEntityManager() { return m_entityManager; } /** * Reports an error to the given report (if available) and to the OpenCms log file.

* * @param report the report to write the error to * @param message the message to write to the report / log * @param throwable the exception to write to the report / log * * @throws CmsException if the throwable parameter is not null and a CmsException * @throws CmsVfsException if the throwable parameter is not null and no CmsException */ @Override public void report(I_CmsReport report, CmsMessageContainer message, Throwable throwable) throws CmsVfsException, CmsException { m_shouldCommit = false; if (report != null) { if (message != null) { report.println(message, I_CmsReport.FORMAT_ERROR); } if (throwable != null) { report.println(throwable); } } throwException(message, throwable); } /** * Rollback current transaction and starts new.

*/ @Override public void rollback() { if ((m_entityManager.getTransaction() != null) && m_entityManager.getTransaction().isActive()) { m_entityManager.getTransaction().rollback(); m_entityManager.getTransaction().begin(); m_shouldCommit = true; } } /** * Commits current database transaction.

*/ private void commitAndClose() { if ((m_entityManager.getTransaction() != null) && m_entityManager.getTransaction().isActive()) { m_entityManager.getTransaction().commit(); } } /** * Rolls back current database transaction.

*/ private void rollbackAndClose() { if ((m_entityManager.getTransaction() != null) && m_entityManager.getTransaction().isActive()) { m_entityManager.getTransaction().rollback(); } } }





© 2015 - 2024 Weber Informatics LLC | Privacy Policy