package com.zuidaima.appoint.dao;

import java.util.List;

import org.apache.ibatis.annotations.Param;

import com.zuidaima.appoint.entiy.Book;

public interface BookDao {
	/*
	 * 根据id查询书
	 * 
	 */
	Book queryById(long id);
	List<Book> querySome(String name);
	List<Book> queryAll(@Param("offset") int offset,@Param("limit") int limit);
	
	/*减少管存数量
	 * 用返回值可判断当前库存是否还有书
	 */
	 int reduceNumber(long bookId);
}