CategoryHome


1   package edu.rice.rubis.beans;
2   
3   import javax.ejb.CreateException  ;
4   import javax.ejb.EJBHome  ;
5   import javax.ejb.FinderException  ;
6   import javax.ejb.RemoveException  ;
7   import java.rmi.RemoteException  ;
8   import java.util.Collection  ;
9   
10  /** This is the Home interface of the Category Bean */
11  
12  public interface CategoryHome extends EJBHome   {
13  
14    /**
15     * This method is used to create a new Category Bean. Note that the category
16     * id is automatically generated by the database (AUTO_INCREMENT) on the
17     * primary key.
18     *
19     * @param name Category name
20     *
21     * @return pk primary key set to null
22     */
23    public Category create(String   name) throws CreateException  , RemoteException  , RemoveException  ;
24  
25  
26    /**
27     * This method is used to retrieve a Category Bean from its primary key,
28     * that is to say its id.
29     *
30     * @param id Category id (primary key)
31     *
32     * @return the Category if found else null
33     */
34    public Category findByPrimaryKey(CategoryPK id) throws FinderException  , RemoteException  ;
35  
36  
37    /**
38     * This method is used to retrieve a Category Bean from its name.
39     *
40     * @param categoryName Category name
41     *
42     * @return the Category if found else null
43     */
44    public Category findByName(String   categoryName) throws FinderException  , RemoteException  ;
45  
46  
47    /**
48     * This method is used to retrieve all categories from the database!
49     *
50     * @return List of all categories (eventually empty)
51     */
52    public Collection   findAllCategories() throws RemoteException  , FinderException  ;
53  }
54

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