C # syntax sugar cache operation class ASP.

Because considering me below I will write session cookies and other operation classes, with the cache has a common. So they all inherit the unity of the Ihttpstorageobject abstract class to keep the function style, but in order to make the call convenient, the abstract also uses a singleton to simplify the call.

The way to use it is simple:

Fame a data set            var liststring = new list<string> () {"A", "B", "C"};            Cache key            String key = "Cmkey";            Get instance            var CacheManager = Cachemanager<list<string>>. GetInstance ();            Insert Cache            Cachemanager.add (key,liststring, cachemanager.minutes * 30);//Expires 30 minutes             //add has other overloads above is the most basic            //Get            list<string> Cachelist=cachemanager[key];            Other methods            Cachemanager.containskey (key);            Cachemanager.remove (key);//delete            Cachemanager.removeall (c=>c.contains ("Sales_"));//delete key contains Sales_ cache            Cachemanager.getallkey ();//Get all keys

Code:

Using system;using system.collections.generic;using system.linq;using system.text;using System.Web;using System.web.caching;using system.collections;using system.linq.expressions;namespace SyntacticSugar{//<summary >//* * Description: Cache operation CLASS//* * Founding Date: 2015-6-9//* * Modified:-//* * Sunkaixuan//* * Instructions://</summary&    Gt <typeparam name= "K" > Keys </typeparam>//<typeparam name= "V" > Value </typeparam> public class Cac Hemanager<v>: ihttpstorageobject<v> {#region global variable private static IHTTPSTORAGEOBJECT&LT;V&GT ;        _instance = null;        private static readonly Object _instancelock = new Object (); #endregion #region Constructor Private CacheManager () {} #endregion #region Properties//<summa              Ry>///Based on key//</summary>//<value></value>           public override V This[string key] { get {return (V) Httpruntime.cache[createkey (key)];} } #endregion #region Public functions///<summary>//Key exists///</summ ary>//<param name= "key" >key</param>///<returns>//Presence <c>t        Rue</c> does not exist <c>false</c>. </returns> public override bool ContainsKey (string key) {return Httprunti Me.        Cache[createkey (key)]! = NULL; }///<summary>//Get Cache value///</summary>//<param Name= "key" >key</param>///<returns></returns> public override V Get (        String key) {return (V) HttpRuntime.Cache.Get (CreateKey (key)); }///<summary>//To get an instance (Singleton mode)///</summary>//<re   Turns></returns>              public static ihttpstorageobject<v> getinstance () {if (_instance = = null) Lock (_instancelock) if (_instance = = null) _instance = new CACHEMANAGER&L T            V> ();        return _instance; }//<summary>//Insert cache///</summary>//<param NA Me= "Key" > key</param>//<param name= "value" >value</param>//<p Aram Name= "Cachedurationinseconds" > Expiry time Unit seconds </param> public override void Add (string key, V value,        int cachedurationinseconds) {ADD (key, value, Cachedurationinseconds, Cacheitempriority.default);                 }///<summary>//Insert cache. </summary>//<param name= "key" >key</param>//<param name= "Val UE ">value</param>                <param name= "Cachedurationinseconds" > Expiry time Unit seconds </param>//<param name= "p Riority "> Cache entry Properties </param> public void Add (string key, V value, int cachedurationinseconds, CacheItem            Priority priority) {string keystring = CreateKey (key); HttpRuntime.Cache.Insert (keystring, value, NULL, DateTime.Now.AddSeconds (cachedurationinseconds),        Cache.noslidingexpiration, priority, NULL);                 }///<summary>//Insert cache. </summary>//<param name= "key" >key</param>//<param name= "Val                 UE ">value</param>//<param name=" cachedurationinseconds "> Expiry time Unit seconds </param> <param name= "Priority" > Cache entry Properties </param> public void Add (string key, V value, int cache  Durationinseconds, CacheDependency dependency, cacheitempriority priority) {          String keystring = CreateKey (key); HttpRuntime.Cache.Insert (keystring, value, dependency, DateTime.Now.AddSeconds (Cachedurationinseconds),        Cache.noslidingexpiration, priority, NULL); }//<summary>//Delete cache///</summary>//<param N Ame= "key" >key</param> public override void Remove (string key) {HTTPRUNTIME.CAC He.        Remove (CreateKey (key));        }///<summary>//Clear all caches///</summary> public override void RemoveAll ()            {System.Web.Caching.Cache Cache = Httpruntime.cache; IDictionaryEnumerator cacheenum = cache.            GetEnumerator ();            ArrayList al = new ArrayList (); while (Cacheenum.movenext ()) {al.            ADD (Cacheenum.key); } foreach (String key in AL) {cache.            Remove (key);   }        }     <summary>///Clear all cache containing keywords///</summary>//<param name= "RemoveKey" > Keywords & lt;/param> public override void RemoveAll (func<string, bool> removeexpression) {System.            Web.Caching.Cache _cache = Httpruntime.cache;            var allkeylist = Getallkey (); var delkeylist = Allkeylist.where (removeexpression).            ToList ();            foreach (var key in delkeylist) {Remove (key); }}///<summary>//Get all cache keys///</summary>//<returns></retu  Rns> public override ienumerable<string> Getallkey () {IDictionaryEnumerator cacheenum =            HttpRuntime.Cache.GetEnumerator ();            while (Cacheenum.movenext ()) {yield return CacheEnum.Key.ToString ();   }} #endregion #region Private Function///<summary>//Create key        </summary>//<param name= "key" >Key</param>//<returns ></returns> private String CreateKey (string key) {return key.        ToString (); } #endregion}}

　　

Using System;namespace syntacticsugar{public    abstract class ihttpstorageobject<v>    {public        int Minutes =;        public int Hour = *;        public int day = * *;        public abstract void Add (string key, V value, int cachedurationinseconds);        public abstract bool ContainsKey (string key);        Public abstract V Get (string key);        Public abstract global::system.collections.generic.ienumerable<string> Getallkey ();        public abstract void Remove (string key);        public abstract void RemoveAll ();        public abstract void RemoveAll (func<string, bool> removeexpression);        Public abstract V this[string key] {get;}}    }

　　

C # syntax sugar cache operation class ASP.