Added a hashed key property to the cache query result interfaces

Author: johelvisguzman

src/DotNetToolkit.Repository/Extensions/CachingProviderExtensions.cs

@@ -63,7 +63,7 @@ public static ICacheQueryResult<TResult> GetOrSet<TEntity, TResult>(
                 cacheUsed = true;
             }
 
-            return new CacheQueryResult<TResult>(value)
+            return new CacheQueryResult<TResult>(hashedKey, value)
             {
                 CacheUsed = cacheUsed
             };
@@ -106,7 +106,7 @@ public static ICachePagedQueryResult<TResult> GetOrSet<TEntity, TResult>(
                 cacheUsed = true;
             }
 
-            return new CachePagedQueryResult<TResult>(value)
+            return new CachePagedQueryResult<TResult>(hashedKey, value)
             {
                 CacheUsed = cacheUsed
             };
@@ -149,7 +149,7 @@ public static async Task<ICacheQueryResult<TResult>> GetOrSetAsync<TEntity, TRes
                 cacheUsed = true;
             }
 
-            return new CacheQueryResult<TResult>(value)
+            return new CacheQueryResult<TResult>(hashedKey, value)
             {
                 CacheUsed = cacheUsed
             };
@@ -192,7 +192,7 @@ public static async Task<ICachePagedQueryResult<TResult>> GetOrSetAsync<TEntity,
                 cacheUsed = true;
             }
 
-            return new CachePagedQueryResult<TResult>(value)
+            return new CachePagedQueryResult<TResult>(hashedKey, value)
             {
                 CacheUsed = cacheUsed
             };

src/DotNetToolkit.Repository/Queries/ICacheQueryResult.cs

@@ -6,6 +6,11 @@
     /// <typeparam name="TResult">The type of the result.</typeparam>
     public interface ICacheQueryResult<out TResult>
     {
+        /// <summary>
+        /// Gets the hashed key associated to this cached result.
+        /// </summary>
+        string HashedKey { get; }
+
         /// <summary>
         /// Gets the result.
         /// </summary>

src/DotNetToolkit.Repository/Queries/Internal/CachePagedQueryResult.cs

@@ -11,7 +11,8 @@ internal class CachePagedQueryResult<TResult> : CacheQueryResult<IPagedQueryResu
         /// <summary>
         /// Initializes a new instance of the <see cref="CachePagedQueryResult{TResult}"/> class.
         /// </summary>
+        /// <param name="hashedKey">The hashed key.</param>
         /// <param name="result">The result.</param>
-        public CachePagedQueryResult([CanBeNull] IPagedQueryResult<TResult> result) : base(result) { }
+        public CachePagedQueryResult([NotNull] string hashedKey, [CanBeNull] IPagedQueryResult<TResult> result) : base(hashedKey, result) { }
     }
 }

src/DotNetToolkit.Repository/Queries/Internal/CacheQueryResult.cs

@@ -1,13 +1,19 @@
 namespace DotNetToolkit.Repository.Queries.Internal
 {
     using JetBrains.Annotations;
+    using Utility;
 
     /// <summary>
     /// An implementation of <see cref="ICacheQueryResult{TResult}" />.
     /// </summary>
     /// <typeparam name="TResult">The type of the result.</typeparam>
     internal class CacheQueryResult<TResult> : ICacheQueryResult<TResult>
     {
+        /// <summary>
+        /// Gets the hashed key associated to this cached result.
+        /// </summary>
+        public string HashedKey { get; }
+
         /// <summary>
         /// Gets the result.
         /// </summary>
@@ -21,9 +27,11 @@ internal class CacheQueryResult<TResult> : ICacheQueryResult<TResult>
         /// <summary>
         /// Initializes a new instance of the <see cref="CacheQueryResult{TResult}"/> class.
         /// </summary>
+        /// <param name="hashedKey">The hashed key.</param>
         /// <param name="result">The result.</param>
-        public CacheQueryResult([CanBeNull] TResult result)
+        public CacheQueryResult([NotNull] string hashedKey, [CanBeNull] TResult result)
         {
+            HashedKey = Guard.NotEmpty(hashedKey, nameof(hashedKey));
             Result = result;
         }
     }