1 files changed, 44 insertions, 0 deletions
diff --git a/lib/VNLib.Plugins.Extensions.Data/src/Abstractions/IConcurrentDbContext.cs b/lib/VNLib.Plugins.Extensions.Data/src/Abstractions/IConcurrentDbContext.cs
new file mode 100644
index 0000000..f3308c5
--- /dev/null
+++ b/lib/VNLib.Plugins.Extensions.Data/src/Abstractions/IConcurrentDbContext.cs
@@ -0,0 +1,44 @@
+/*
+* Copyright (c) 2023 Vaughn Nugent
+* 
+* Library: VNLib
+* Package: VNLib.Plugins.Extensions.Data
+* File: IConcurrentDbContext.cs 
+*
+* IConcurrentDbContext.cs is part of VNLib.Plugins.Extensions.Data which is part of the larger 
+* VNLib collection of libraries and utilities.
+*
+* VNLib.Plugins.Extensions.Data is free software: you can redistribute it and/or modify 
+* it under the terms of the GNU Affero General Public License as 
+* published by the Free Software Foundation, either version 3 of the
+* License, or (at your option) any later version.
+*
+* VNLib.Plugins.Extensions.Data is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU Affero General Public License for more details.
+*
+* You should have received a copy of the GNU Affero General Public License
+* along with this program.  If not, see https://www.gnu.org/licenses/.
+*/
+
+using System.Threading;
+using System.Threading.Tasks;
+using System.Transactions;
+
+namespace VNLib.Plugins.Extensions.Data.Abstractions
+{
+    /// <summary>
+    /// Represents a database context that can manage concurrency via transactions
+    /// </summary>
+    public interface IConcurrentDbContext : ITransactionalDbContext
+    {
+        /// <summary>
+        /// Opens a single transaction on the current context. If a transaction is already open, 
+        /// it is disposed and a new transaction is begun.
+        /// </summary>
+        /// <param name="isolationLevel">The isolation level of the transaction</param>
+        /// <param name="cancellationToken">A token to cancel the operations</param>
+        Task OpenTransactionAsync(IsolationLevel isolationLevel, CancellationToken cancellationToken = default);
+    }
+}
+\ No newline at end of file