placardserviceimpl.java

SSH 的分页...是新手的一个不错例子.

package com.placard.usermanage.service.impl;

import java.util.List;

import org.hibernate.HibernateException;

import com.placard.core.common.exception.BusinessException;
import com.placard.core.common.hibernate.BaseHibernateDAO;
import com.placard.core.common.hibernate.BaseHibernateService;
import com.placard.core.common.hibernate.HibernateCallBack;
import com.placard.core.common.hibernate.HibernateProxy;
import com.placard.usermanage.dao.PlacardDAO;
import com.placard.usermanage.dao.impl.PlacardDAOImpl;
import com.placard.usermanage.model.Placard;
import com.placard.usermanage.service.PlacardService;

public class PlacardServiceImpl extends BaseHibernateService implements
		PlacardService {
	private BaseHibernateDAO baseDAO = new BaseHibernateDAO();
	private PlacardDAO placardDAO = new PlacardDAOImpl();
	public void insertPlacard(final Placard placard) throws BusinessException {
		HibernateCallBack callBack = new HibernateCallBack(){
			public Object execute()throws HibernateException{
				return baseDAO.save(placard);
			}
		};
		new HibernateProxy().run(callBack);
	}
	
	public List<Placard> getPlacardByPage(final int startIndex , final int length, final Placard placardExample){
		HibernateCallBack callBack = new HibernateCallBack(){
			public Object execute()throws HibernateException{
				return placardDAO.getPlacardByPage(startIndex, length, placardExample);
			}
		};
		return (List<Placard>)new HibernateProxy().run(callBack);
	}
	
	public int getPlacardLength(final Placard placard){
		HibernateCallBack callBack = new HibernateCallBack(){
			public Object execute()throws HibernateException{
				return new Integer(placardDAO.getPlacardLength(placard));
			}
		};
		return (Integer)new HibernateProxy().run(callBack);
	}
	
}