1Using#region Using
  2
  3using System;
  4using System.Collections.Generic;
  5using System.Collections.Specialized;
  6using System.Configuration.Provider;
  7using LiveBlog.Core;
  8
  9#endregion
 10
 11namespace LiveBlog.Core.Providers
 12...{
 13    /**//// <summary>
 14    /// A base class for all custom providers to inherit from.
 15    /// </summary>
 16    public abstract class BlogProvider : ProviderBase
 17    ...{
 18        // Post
 19        /**//// <summary>
 20        /// Retrieves a Post from the provider based on the specified id.
 21        /// </summary>
 22        public abstract Post SelectPost(Guid id);
 23        /**//// <summary>
 24        /// Inserts a new Post into the data store specified by the provider.
 25        /// </summary>
 26        public abstract void InsertPost(Post post);
 27        /**//// <summary>
 28        /// Updates an existing Post in the data store specified by the provider.
 29        /// </summary>
 30        public abstract void UpdatePost(Post post);
 31        /**//// <summary>
 32        /// Deletes a Post from the data store specified by the provider.
 33        /// </summary>
 34        public abstract void DeletePost(Post post);
 35        /**//// <summary>
 36        /// Retrieves all Posts from the provider and returns them in a List.
 37        /// </summary>
 38        public abstract List<Post> FillPosts();
 39
 40        // Page
 41        /**//// <summary>
 42        /// Retrieves a Page from the provider based on the specified id.
 43        /// </summary>
 44        public abstract Page SelectPage(Guid id);
 45        /**//// <summary>
 46        /// Inserts a new Page into the data store specified by the provider.
 47        /// </summary>
 48        public abstract void InsertPage(Page page);
 49        /**//// <summary>
 50        /// Updates an existing Page in the data store specified by the provider.
 51        /// </summary>
 52        public abstract void UpdatePage(Page page);
 53        /**//// <summary>
 54        /// Deletes a Page from the data store specified by the provider.
 55        /// </summary>
 56        public abstract void DeletePage(Page page);
 57        /**//// <summary>
 58        /// Retrieves all Pages from the provider and returns them in a List.
 59        /// </summary>
 60        public abstract List<Page> FillPages();
 61
 62       /**//// <summary>
 63        /// Retrieves a Category from the provider based on the specified id.
 64        /// </summary>
 65        public abstract Category SelectCategory(Guid id);
 66        /**//// <summary>
 67        /// Inserts a new Category into the data store specified by the provider.
 68        /// </summary>
 69        public abstract void InsertCategory(Category category);
 70        /**//// <summary>
 71        /// Updates an existing Category in the data store specified by the provider.
 72        /// </summary>
 73        public abstract void UpdateCategory(Category category);
 74        /**//// <summary>
 75        /// Deletes a Category from the data store specified by the provider.
 76        /// </summary>
 77        public abstract void DeleteCategory(Category category);
 78        /**//// <summary>
 79        /// Retrieves all Categories from the provider and returns them in a List.
 80        /// </summary>
 81        public abstract List<Category> FillCategories();
 82
 83        // Settings
 84        /**//// <summary>
 85        /// Loads the settings from the provider.
 86        /// </summary>
 87        public abstract StringDictionary LoadSettings();
 88        /**//// <summary>
 89        /// Saves the settings to the provider.
 90        /// </summary>
 91        public abstract void SaveSettings(StringDictionary settings);
 92
 93        //Ping services
 94        /**//// <summary>
 95        /// Loads the ping services.
 96        /// </summary>
 97        /// <returns></returns>
 98        public abstract StringCollection LoadPingServices();
 99        /**//// <summary>
100        /// Saves the ping services.
101        /// </summary>
102        /// <param name="services">The services.</param>
103        public abstract void SavePingServices(StringCollection services);
104
105    }
106
107    /**//// <summary>
108    /// A collection of all registered providers.
109    /// </summary>
110    public class BlogProviderCollection : ProviderCollection
111    ...{
112        /**//// <summary>
113        /// Gets a provider by its name.
114        /// </summary>
115        public new BlogProvider this[string name]
116        ...{
117            get ...{ return (BlogProvider)base[name]; }
118        }
119
120        /**//// <summary>
121        /// Add a provider to the collection.
122        /// </summary>
123        public override void Add(ProviderBase provider)
124        ...{
125            if (provider == null)
126                throw new ArgumentNullException("provider");
127
128            if (!(provider is BlogProvider))
129                throw new ArgumentException
130                    ("Invalid provider type", "provider");
131
132            base.Add(provider);
133        }
134    }
135
136}
137