org.hibernate.event.internal.EntityCopyAllowedLoggedObserver Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2014, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program 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.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.event.internal;
import java.util.IdentityHashMap;
import java.util.Map;
import java.util.Set;
import java.util.TreeMap;
import org.hibernate.event.spi.EventSource;
import org.hibernate.internal.CoreLogging;
import org.hibernate.internal.CoreMessageLogger;
import org.hibernate.internal.util.collections.IdentitySet;
import org.hibernate.pretty.MessageHelper;
/**
* An {@link org.hibernate.event.spi.EntityCopyObserver} implementation that allows multiple representations of
* the same persistent entity to be merged and provides logging of the entity copies that
* that are detected.
*
* @author Gail Badner
*/
public class EntityCopyAllowedLoggedObserver extends EntityCopyAllowedObserver {
private static final CoreMessageLogger LOG = CoreLogging.messageLogger( EntityCopyAllowedLoggedObserver.class );
public static final String SHORT_NAME = "log";
// Tracks the number of entity copies per entity name.
private Map countsByEntityName;
// managedToMergeEntitiesXref is only maintained for DEBUG logging so that a "nice" message
// about multiple representations can be logged at the completion of the top-level merge.
// If no entity copies have been detected, managedToMergeEntitiesXref will remain null;
private Map