convertutil.java

本文论述了一个前台笔记本销售系统的开发过程

package com.set.utils;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import org.apache.commons.beanutils.BeanUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.set.appframe.data.GenericValueObject;

/**
 * Utility class to convert one object to another.
 */
public final class ConvertUtil {
	// ~ Static fields/initializers
	// =============================================

	private static Log log = LogFactory.getLog(ConvertUtil.class);

	/**
	 * convert map list to dynabean list
	 * 
	 * @param dbResultMapList
	 * @return
	 */
	public static List convertToDynaBeanList(List dbResultMapList) {
		if (null == dbResultMapList) {
			return null;
		}
		List newList = new ArrayList();

		Iterator it = dbResultMapList.iterator();
		while (it.hasNext()) {
			Map map = (Map) it.next();
			newList.add(convertToDynaBean(map));
		}
		return newList;
	}

	public static GenericValueObject convertToDynaBean(Map map) {
		if (null == map)
			return null;
		GenericValueObject bean = new GenericValueObject(map);

		return bean;
	}

	public static GenericValueObject convertToVO(Object po) {
		if (null == po) {
			return null;
		}
		GenericValueObject vo = new GenericValueObject();
		try {
			BeanUtils.copyProperties(vo, po);
		} catch (Exception e) {
			log.error(e);
		}
		return vo;
	}
}