org.hibernate.event.def.DefaultFlushEntityEventListener Maven / Gradle / Ivy

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//$Id: DefaultFlushEntityEventListener.java 10784 2006-11-11 05:13:01Z [email protected] $
package org.hibernate.event.def;

import java.io.Serializable;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.hibernate.AssertionFailure;
import org.hibernate.EntityMode;
import org.hibernate.HibernateException;
import org.hibernate.StaleObjectStateException;
import org.hibernate.action.EntityUpdateAction;
import org.hibernate.action.DelayedPostInsertIdentifier;
import org.hibernate.classic.Validatable;
import org.hibernate.engine.EntityEntry;
import org.hibernate.engine.EntityKey;
import org.hibernate.engine.Nullability;
import org.hibernate.engine.SessionImplementor;
import org.hibernate.engine.Status;
import org.hibernate.engine.Versioning;
import org.hibernate.event.EventSource;
import org.hibernate.event.FlushEntityEvent;
import org.hibernate.event.FlushEntityEventListener;
import org.hibernate.intercept.FieldInterceptionHelper;
import org.hibernate.persister.entity.EntityPersister;
import org.hibernate.pretty.MessageHelper;
import org.hibernate.type.Type;
import org.hibernate.util.ArrayHelper;

/**
 * An event that occurs for each entity instance at flush time
 *
 * @author Gavin King
 */
public class DefaultFlushEntityEventListener implements FlushEntityEventListener {

	private static final Logger log = LoggerFactory.getLogger(DefaultFlushEntityEventListener.class);

	/**
	 * make sure user didn't mangle the id
	 */
	public void checkId(Object object, EntityPersister persister, Serializable id, EntityMode entityMode)
	throws HibernateException {

		if ( id != null && id instanceof DelayedPostInsertIdentifier ) {
			// this is a situation where the entity id is assigned by a post-insert generator
			// and was saved outside the transaction forcing it to be delayed
			return;
		}

		if ( persister.canExtractIdOutOfEntity() ) {

			Serializable oid = persister.getIdentifier( object, entityMode );
			if (id==null) {
				throw new AssertionFailure("null id in " + persister.getEntityName() + " entry (don't flush the Session after an exception occurs)");
			}
			if ( !persister.getIdentifierType().isEqual(id, oid, entityMode) ) {
				throw new HibernateException(
						"identifier of an instance of " +
						persister.getEntityName() +
						" was altered from " + id +
						" to " + oid
					);
			}
		}

	}

	private void checkNaturalId(
			EntityPersister persister,
	        EntityEntry entry,
	        Object[] current,
	        Object[] loaded,
	        EntityMode entityMode,
	        SessionImplementor session) {
		if ( persister.hasNaturalIdentifier() && entry.getStatus() != Status.READ_ONLY ) {
 			Object[] snapshot = null;			
			Type[] types = persister.getPropertyTypes();
			int[] props = persister.getNaturalIdentifierProperties();
			boolean[] updateable = persister.getPropertyUpdateability();
			for ( int i=0; i