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MyCode.Project.Infrastructure/Specifications/ExpressionSpecification.cs

@@ -0,0 +1,41 @@
+
+using System;
+using System.Linq.Expressions;
+
+namespace MyCode.Project.Infrastructure
+{
+    /// <summary>
+    /// Represents the specification which is represented by the corresponding
+    /// LINQ expression.
+    /// </summary>
+    /// <typeparam name="T">The type of the object to which the specification is applied.</typeparam>
+    internal sealed class ExpressionSpecification<T> : Specification<T>
+    {
+        #region Private Fields
+        private Expression<Func<T, bool>> expression;
+        #endregion
+
+        #region Ctor
+        /// <summary>
+        /// Initializes a new instance of <c>ExpressionSpecification&lt;T&gt;</c> class.
+        /// </summary>
+        /// <param name="expression">The LINQ expression which represents the current
+        /// specification.</param>
+        public ExpressionSpecification(Expression<Func<T, bool>> expression)
+        {
+            this.expression = expression;
+        }
+        #endregion
+
+        #region Public Methods
+        /// <summary>
+        /// Gets the LINQ expression which represents the current specification.
+        /// </summary>
+        /// <returns>The LINQ expression.</returns>
+        public override Expression<Func<T, bool>> GetExpression()
+        {
+            return this.expression;
+        }
+        #endregion
+    }
+}