productdao.java

Struts数据库项目中的一个实例

package com.relationinfo.dao;

import java.util.List;

import com.relationinfo.model.Product;

public interface ProductDAO extends DAO {

    /**
     * Retrieves all of the products
     */
    public List getProducts(Product product);

    /**
     * Gets product's information based on primary key. An
     * ObjectRetrievalFailureException Runtime Exception is thrown if 
     * nothing is found.
     * 
     * @param productid the product's productid
     * @return product populated product object
     */
    public Product getProduct(final String productid);

    /**
     * Saves a product's information
     * @param product the object to be saved
     */	
    public void saveProduct(Product product);

	/**
     * Removes a product from the database by productid
     * @param productid the product's productid
     */
    public void removeProduct(final String productid);
}