singleobjectdaoimpl.java

基于SSH (struts+spring+hibernate)框架设计的 CRM客户关系管理系统

package com.csu.crm.common.dao.impl;

import java.util.ArrayList;
import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import com.csu.crm.common.dao.SingleObjectDAO;
import com.csu.crm.common.vo.CrmArea;
import com.csu.crm.common.vo.CrmBank;
import com.csu.crm.common.vo.CrmCuLev;
import com.csu.crm.common.vo.CrmCuState;
import com.csu.crm.common.vo.CrmEntCredit;
import com.csu.crm.common.vo.CrmEntIndustry;
import com.csu.crm.common.vo.CrmEntProperty;

public class SingleObjectDAOImpl extends HibernateDaoSupport implements SingleObjectDAO{
	private static final Log log = LogFactory.getLog(SingleObjectDAOImpl.class);	
	
	
	protected void initDao() {
		// do nothing
	}

	public Object getObject(String targetObj,String propertyName,String property) {
		log.debug("finding the Object");
		List list = new ArrayList();		
		try {
			String hql="select distinct tmp from " + targetObj + " as tmp where tmp." + propertyName + "=?";
			log.warn("[SingleObjectDAO]--" + hql);
			Object paramas[]={property};			
			list=this.getHibernateTemplate().find(hql, paramas);
			if(list.isEmpty()) return null;
		} catch (RuntimeException re) {
			log.error("find single failed", re);
			throw re;
		}
		return list.iterator().next();
	}	
	
	public boolean isExisted(String targetObj,String propertyName,String property) {
		log.debug("check the Object is exist or not");
		List list = new ArrayList();		
		try {
			String hql="select distinct tmp from " + targetObj + " as tmp where tmp." + propertyName + "=?";
			Object paramas[]={property};			
			list=this.getHibernateTemplate().find(hql, paramas);
			if(list.isEmpty()) return false;
		} catch (RuntimeException re) {
			log.error("find single failed", re);
			throw re;
		}
		return true;
	}
}