productdao.java

来自「ssh 实例spring对hibernate的封装」· Java 代码 · 共 79 行

package com.ssh.hibernate.dao;

import java.util.List;

import com.ssh.hibernate.pojo.Product;

/**
 * Interface, Product Access Object
 * provides methods to access the table PRODUCT with actions of save, delete, update,
 * list,find by id,and find by product name
 * @author T.Xin.Jun
 */
public interface ProductDao {
	/**
	 * Method save
	 * provides action to save a record to database
	 * @param product
	 * @return boolean
	 */
	public boolean save(Product product);
	
	/**
	 * Method delete
	 * provides action to delete a record from database 
	 * @param product
	 * @return boolean
	 */
	public boolean delete(Product product);
	
	/**
	 * Method update
	 * provides action to update a record to database
	 * @param product
	 * @return boolean
	 */
	public boolean update(Product product);
	
	/**
	 * Method load
	 * providers action to load a record by product id from database
	 * @param id
	 * @return Product
	 */
	public Product load(Long id);
	
	/**
	 * Method findByName
	 * providers action to list the records by the product name from database
	 * @param name
	 * @return List
	 */
	public List<Product> findByName(String name, int start, int count);
	
	/**
	 * Method findBySort
	 * providers action to list the records by the sort name from database
	 * @param name
	 * @return List
	 */
	public List<Product> findBySort(String sortName, int start, int count);
	
	/**
	 * Method List
	 * provides action to list all the records from database
	 * @param id
	 * @return List
	 */
	public List<Product> list(int start, int count);
	
	/**
	 * Method getTotalCount
	 * get total counts with query type and query keyword
	 * @param type
	 * @param keyword
	 * @return
	 */
	public int getTotalCount(String type, String keyword);
}