/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2012, 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.spi;
import java.io.Serializable;
import java.util.Collections;
import java.util.Map;
import org.hibernate.HibernateException;
import org.hibernate.LockMode;
import org.hibernate.LockOptions;
import org.hibernate.persister.entity.EntityPersister;
/**
* Defines an event class for the resolving of an entity id from the entity's natural-id
*
* @author Eric Dalquist
* @author Steve Ebersole
*/
public class ResolveNaturalIdEvent extends AbstractEvent {
public static final LockMode DEFAULT_LOCK_MODE = LockMode.NONE;
private final EntityPersister entityPersister;
private final Map<String, Object> naturalIdValues;
private final Object[] orderedNaturalIdValues;
private final LockOptions lockOptions;
private Serializable entityId;
public ResolveNaturalIdEvent(Map<String, Object> naturalIdValues, EntityPersister entityPersister, EventSource source) {
this( naturalIdValues, entityPersister, new LockOptions(), source );
}
public ResolveNaturalIdEvent(
Map<String, Object> naturalIdValues,
EntityPersister entityPersister,
LockOptions lockOptions,
EventSource source) {
super( source );
if ( entityPersister == null ) {
throw new IllegalArgumentException( "EntityPersister is required for loading" );
}
if ( ! entityPersister.hasNaturalIdentifier() ) {
throw new HibernateException( "Entity did not define a natural-id" );
}
if ( naturalIdValues == null || naturalIdValues.isEmpty() ) {
throw new IllegalArgumentException( "natural-id to load is required" );
}
if ( entityPersister.getNaturalIdentifierProperties().length != naturalIdValues.size() ) {
throw new HibernateException(
String.format(
"Entity [%s] defines its natural-id with %d properties but only %d were specified",
entityPersister.getEntityName(),
entityPersister.getNaturalIdentifierProperties().length,
naturalIdValues.size()
)
);
}
if ( lockOptions.getLockMode() == LockMode.WRITE ) {
throw new IllegalArgumentException( "Invalid lock mode for loading" );
}
else if ( lockOptions.getLockMode() == null ) {
lockOptions.setLockMode( DEFAULT_LOCK_MODE );
}
this.entityPersister = entityPersister;
this.naturalIdValues = naturalIdValues;
this.lockOptions = lockOptions;
int[] naturalIdPropertyPositions = entityPersister.getNaturalIdentifierProperties();
orderedNaturalIdValues = new Object[naturalIdPropertyPositions.length];
int i = 0;
for ( int position : naturalIdPropertyPositions ) {
final String propertyName = entityPersister.getPropertyNames()[position];
if ( ! naturalIdValues.containsKey( propertyName ) ) {
throw new HibernateException(
String.format( "No value specified for natural-id property %s#%s", getEntityName(), propertyName )
);
}
orderedNaturalIdValues[i++] = naturalIdValues.get( entityPersister.getPropertyNames()[position] );
}
}
public Map<String, Object> getNaturalIdValues() {
return Collections.unmodifiableMap( naturalIdValues );
}
public Object[] getOrderedNaturalIdValues() {
return orderedNaturalIdValues;
}
public EntityPersister getEntityPersister() {
return entityPersister;
}
public String getEntityName() {
return getEntityPersister().getEntityName();
}
public LockOptions getLockOptions() {
return lockOptions;
}
public Serializable getEntityId() {
return entityId;
}
public void setEntityId(Serializable entityId) {
this.entityId = entityId;
}
}