由将SQL查询结果转化为pojo的想到的

今天在网上上看见一篇“将SQL查询结果转化为pojo对象的”博客，博主自定义做了一个类如下：
import java.lang.reflect.Field;  
import java.util.List;  
 
import org.hibernate.HibernateException;  
import org.hibernate.property.ChainedPropertyAccessor;  
import org.hibernate.property.PropertyAccessor;  
import org.hibernate.property.PropertyAccessorFactory;  
import org.hibernate.property.Setter;  
import org.hibernate.transform.ResultTransformer;  
 
/**
 * 完成native sql查询数据（数组）到pojo对象的转化
 * @author warison
 *
 * Oct 26, 2009
 */
public class PojoTransformer implements ResultTransformer {  
     private static final long serialVersionUID = 1L;  
     private Class<? extends BaseModel> resultClass;  
     private Setter[] setters;  
     private PropertyAccessor propertyAccessor;  
       
     public  PojoTransformer(Class<? extends BaseModel> resultClass) {  
         if(resultClass==null)
          throw new IllegalArgumentException("resultClass cannot be null");  
         this.resultClass = resultClass;  
         propertyAccessor = new ChainedPropertyAccessor(new PropertyAccessor[] { PropertyAccessorFactory.getPropertyAccessor(resultClass,null), PropertyAccessorFactory.getPropertyAccessor("field")});        
     }  
  
     //结果转换时，HIBERNATE调用此方法  
   &n