EDIT

/**

* Copyright (C) 2018 EDIT

* European Distributed Institute of Taxonomy

* http://www.e-taxonomy.eu

*

* The contents of this file are subject to the Mozilla Public License Version 1.1

* See LICENSE.TXT at the top of this package for the full license terms.

*/

package eu.etaxonomy.cdm.config;

import org.hibernate.SessionFactory;

import org.hibernate.event.service.spi.EventListenerRegistry;

import org.hibernate.event.spi.EventType;

import org.hibernate.internal.SessionFactoryImpl;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

import eu.etaxonomy.cdm.persistence.hibernate.TaxonGraphHibernateListener;

/**

 * Spring configuration to provide the {@link TaxonGraphHibernateListener} bean.

 * This configuration can be activated by adding {@code @CdmHibernateListener}

 * to a java spring configuration see

 * <code>eu.etaxonomy.cdm.addon.config.CdmVaadinConfiguration</code> in <a href=

 * "https://github.com/cybertaxonomy/cdm-vaadin">https://github.com/cybertaxonomy/cdm-vaadin</a>

 * for an example.

 *

 * @see {@link CdmHibernateListener}

 * @see <a href=

 *      "https://dev.e-taxonomy.eu/redmine/issues/7648">https://dev.e-taxonomy.eu/redmine/issues/7648</a>

 *

 * @author a.kohlbecker

 * @since Oct 10, 2018

 *

 */

@Configuration

public class CdmHibernateListenerConfiguration {

    @Autowired

    SessionFactory sessionFactory;

    @Bean

    public TaxonGraphHibernateListener taxonGraphHibernateListener(){

        TaxonGraphHibernateListener taxonGraphHibernateListener = new TaxonGraphHibernateListener();

        EventListenerRegistry listenerRegistry = ((SessionFactoryImpl) sessionFactory).getServiceRegistry().getService(

                EventListenerRegistry.class);

        listenerRegistry.appendListeners(EventType.POST_UPDATE, taxonGraphHibernateListener);

        listenerRegistry.appendListeners(EventType.POST_INSERT, taxonGraphHibernateListener);

        listenerRegistry.appendListeners(EventType.PRE_DELETE, taxonGraphHibernateListener);

        return taxonGraphHibernateListener;

    }

}