package com.zhou.dao;

import java.util.List;

import com.zhou.po.Userinfo;

public interface IUserinfoDAO {

	// property constants
	public static final String USERNAME = "username";

	public static final String USERPWD = "userpwd";

	public abstract void save(Userinfo transientInstance);

	public abstract void delete(Userinfo persistentInstance);

	public abstract Userinfo findById(java.lang.Long id);

	public abstract List findByExample(Userinfo instance);

	public abstract List findByProperty(String propertyName, Object value);

	public abstract List findByUsername(Object username);

	public abstract List findByUserpwd(Object userpwd);

	public abstract Userinfo merge(Userinfo detachedInstance);

	public abstract void attachDirty(Userinfo instance);

	public abstract void attachClean(Userinfo instance);
	
	public abstract List findByAll();
	
	public List login(Object username,Object userpwd);

}