fork from 1.3

FreeSR.Database/ISRDatabase.cs

@@ -0,0 +1,18 @@
+namespace FreeSR.Database
+{
+    using System;
+    using System.Collections.Generic;
+    using System.Linq.Expressions;
+
+    public interface ISRDatabase<T> where T : class
+    {
+        Task Insert(T document);
+        Task InsertMany(IEnumerable<T> documents);
+        Task<List<T>> Find(Expression<Func<T, bool>> filter);
+        Task<T> FindOne(Expression<Func<T, bool>> filter);
+        Task Update(Expression<Func<T, bool>> filter, T updatedDocument);
+        Task Delete(Expression<Func<T, bool>> filter);
+        Task<long> Count();
+        Task<T> FindMax(Expression<Func<T, object>> fieldSelector);
+    }
+}