Implementing Naming Convention

Implementing Naming Convention

Hibernate has been provided a NamingStrategy interface to apply the naming convention automatically for database table name and column name. 

Let say database table name should be started by "AB_". So you have to create a class that have to extend it  from ImprovedNamingStrategy class and override the following methods.

public class ABNamingStrategy extends ImprovedNamingStrategy {

private static final long serialVersionUID = 1L;

@Override

public String classToTableName(String className) {

return StringHelper.unqualify(className);

}

@Override

public String propertyToColumnName(String propertyName) {

return propertyName;

}

@Override

public String tableName(String tableName) {

return "AB_"+tableName.toUpperCase();

}

@Override

public String columnName(String columnName) {

return columnName;

}

@Override

public String propertyToTableName(String className, String propertyName) {

return "AB_" + classToTableName(className) + "_" +   

                           propertyToColumnName(propertyName);

}

}

classToTableName method will be call when class mapping do not have explicitly table name,  propertyToColumnName method will be call when property element do not have explicitly column name.

Now, you have to do some change in HibernateUtil class,

sessionFactory = new Configuration().setNamingStrategy(new  CENamingStrategy()).configure().buildSessionFactory();