org.hibernate.envers.internal.tools.MappingTools Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2013, 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.envers.internal.tools;
import org.hibernate.mapping.Collection;
import org.hibernate.mapping.ManyToOne;
import org.hibernate.mapping.OneToMany;
import org.hibernate.mapping.ToOne;
import org.hibernate.mapping.Value;
/**
* @author Adam Warski (adam at warski dot org)
*/
public abstract class MappingTools {
/**
* @param componentName Name of the component, that is, name of the property in the entity that references the component.
*
* @return A prefix for properties in the given component.
*/
public static String createComponentPrefix(String componentName) {
return componentName + "_";
}
/**
* @param referencePropertyName The name of the property that holds the relation to the entity.
*
* @return A prefix which should be used to prefix an id mapper for the related entity.
*/
public static String createToOneRelationPrefix(String referencePropertyName) {
return referencePropertyName + "_";
}
public static String getReferencedEntityName(Value value) {
if ( value instanceof ToOne ) {
return ((ToOne) value).getReferencedEntityName();
}
else if ( value instanceof OneToMany ) {
return ((OneToMany) value).getReferencedEntityName();
}
else if ( value instanceof Collection ) {
return getReferencedEntityName( ((Collection) value).getElement() );
}
return null;
}
/**
* @param value Persistent property.
* @return {@code false} if lack of associated entity shall raise an exception, {@code true} otherwise.
*/
public static boolean ignoreNotFound(Value value) {
if ( value instanceof ManyToOne ) {
return ( (ManyToOne) value ).isIgnoreNotFound();
}
else if ( value instanceof OneToMany ) {
return ( (OneToMany) value ).isIgnoreNotFound();
}
return false;
}
}