employeedao.java

perfectpets的组织为全国的宠物诊所提供了个体健康管理。为不同城市的不同诊所提供了该服务。Perfectpets注意到在该业务领域缺乏交流

package com.pet.daoImpl;

import java.io.Serializable;
import java.util.List;
import java.util.Map;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.criterion.DetachedCriteria;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import com.pet.dao.PetCliniqueDAO;
import com.pet.pojo.Employee;
import com.pet.toolkit.Pagination;

public class EmployeeDAO extends HibernateDaoSupport implements PetCliniqueDAO {

	private static final Log log = LogFactory.getLog(EmployeeDAO.class);
	
	@SuppressWarnings("unchecked")
	public void del(Map map) {
		// TODO Auto-generated method stub

	}

	public void delete(Object obj) {
		Employee persistentInstance=(Employee)obj;
		log.debug("deleting Employee instance");
		try {
			getHibernateTemplate().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public void edit(Object obj) {
		log.debug("merging Employee instance");
		Employee persistentInstance=(Employee)obj;
		try {
			getHibernateTemplate().update(persistentInstance);
			log.debug("merge successful");
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public long queryTotalResults(String conditions) {
		log.debug("QUERY Employee instance");
		try {
			Object obj=getHibernateTemplate().find(conditions).get(0);
			long lt=(Long)obj;
			log.debug("QUERY successful");
			return lt;
		}catch(java.lang.ClassCastException e){
			System.out.println("出现类型转换异常");
			int lt=(Integer)getHibernateTemplate().find(conditions).get(0);
			return lt;
		}catch (RuntimeException re) {
			log.error("QUERY failed", re);
			throw re;
		}
	}

	public void save(Object obj) {
		log.debug("saving Employee instance");
		try {
			Employee  emp=(Employee )obj;
			getHibernateTemplate().save(emp);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	@SuppressWarnings("unchecked")
	public Object searchObject(DetachedCriteria dc) {
		log.debug("根据条件查询诊所！");
		try {
			List<Employee> list = getHibernateTemplate().findByCriteria(dc);
			if (list.isEmpty()) {
				log.debug("查询成功！");
				return null;
			} else {
				log.debug("查询成功！");
				return list.get(0);
			}
		} catch (RuntimeException re) {
			log.error("search failed", re);
			throw re;
		}
	}

	public Object searchObject(Class<?> clazz, Serializable ser) {
		log.debug("根据员工ID来查询具体的诊所！");
		try{
			Employee emp = (Employee) getHibernateTemplate().get(clazz, ser);
			return emp;
		}catch (RuntimeException re){
			log.error("查询 Employee failed!");
			throw re;
		}
	}

	/*
	 * 分页查询，有附加条件
	 */
	@SuppressWarnings("unchecked")
	public List<Employee> searchObjects(DetachedCriteria dc, Pagination page) {
		log.debug("search List For Employee By Conditions!");
		try{
			List<Employee> employeeList=getHibernateTemplate().findByCriteria(dc, (page.getCurrentPage()-1)*page.getPageSize(),
														page.getPageSize());
			return employeeList;
		}catch (RuntimeException re){
			log.error("查询 Employee failed!");
			throw re;
		}
	}

	/*
	 * 无条件的分页查询
	 */
	@SuppressWarnings("unchecked")
	public List<Employee> searchObjectsUnlimited(DetachedCriteria dc,Pagination page) {
		log.debug("search List For Employee By No Conditions!");
		try{
			List<Employee> employeeList=getHibernateTemplate().findByCriteria(dc, (page.getCurrentPage()-1)*page.getPageSize(),
														page.getCurrentPage()*page.getPageSize()-1);
			return employeeList;
		}catch (RuntimeException re){
			log.error("查询 Employee failed!");
			throw re;
		}
	}

	public static CliniqueDAO getFromApplicationContext(ApplicationContext ctx) {
		return (CliniqueDAO) ctx.getBean("CliniqueDAO");
	}
	
	public static void main(String[] args) {
		
	}
}