Javaweb Learning Record (12)--the interface definition of database operation of shopping mall

One, the basic interface, all the interfaces in the project inherit it

Package Blank.dao;

Import java.util.List;

Public interface Basedao<t,pk> {
Boolean insertobject (T entity);
Boolean updateobject (T entity);
Boolean DeleteObject (T entity);
Boolean Deleteobjectbyid (PK ID);
T FindByID (PK ID);
List<t> getobjects ();
List<t> getobjects (Long Startsize,long pageSize);
}
II. Interfaces for category operations

Package Blank.dao;

Import Blank.domain.Category;

Public interface CategoryDao extends Basedao<category, integer>{

}

Third, the interface of commodity operation

Package Blank.dao;

Import java.util.List;

Import Blank.domain.Category;
Import Blank.domain.Goods;

Public interface Goodsdao extends Basedao<goods, integer>{
List<goods> getobjectsbycid (Integer CID);
List<goods> getobjectsbycategory (Final category category);
}
Iv. interface of Product picture operation

Package Blank.dao;

Import java.util.List;

Import Blank.domain.Goods;
Import Blank.domain.GoodsImage;

Public interface Goodsimagedao extends Basedao<goodsimage, integer>{
List<goodsimage> Getgoodsimagebygid (Integer gid);
List<goodsimage> Getgoodsimagebygoods (final Goods entity);
}
Five, user interface
Import Blank.domain.User;

Public interface Userdao extends Basedao<user, integer>{
Verify that the user exists by user name and password
User Checklogin (String name,string Pass);
}
Six, order Operation interface

Public interface Ordersdao extends Basedao<orders, integer> {

}

Seven, order entry operation interface

Public interface Ordersitemdao extends Basedao<ordersitem, integer>{

}

Javaweb Learning Record (12)--the interface definition of database operation of shopping mall