org.hibernate.cfg.ImprovedNamingStrategy Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010, 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.cfg;
import java.io.Serializable;
import org.hibernate.AssertionFailure;
import org.hibernate.internal.util.StringHelper;
/**
* An improved naming strategy that prefers embedded
* underscores to mixed case names
* @see DefaultNamingStrategy the default strategy
* @author Gavin King
*/
public class ImprovedNamingStrategy implements NamingStrategy, Serializable {
/**
* A convenient singleton instance
*/
public static final NamingStrategy INSTANCE = new ImprovedNamingStrategy();
/**
* Return the unqualified class name, mixed case converted to
* underscores
*/
public String classToTableName(String className) {
return addUnderscores( StringHelper.unqualify(className) );
}
/**
* Return the full property path with underscore seperators, mixed
* case converted to underscores
*/
public String propertyToColumnName(String propertyName) {
return addUnderscores( StringHelper.unqualify(propertyName) );
}
/**
* Convert mixed case to underscores
*/
public String tableName(String tableName) {
return addUnderscores(tableName);
}
/**
* Convert mixed case to underscores
*/
public String columnName(String columnName) {
return addUnderscores(columnName);
}
protected static String addUnderscores(String name) {
StringBuilder buf = new StringBuilder( name.replace('.', '_') );
for (int i=1; i