Add support for DbBatch

Author: gliljas

Diff for: src/NHibernate.Test/Ado/BatcherFixture.cs

@@ -4,9 +4,18 @@
 
 namespace NHibernate.Test.Ado
 {
-	[TestFixture]
+#if NET6_0_OR_GREATER
+	[TestFixture(true)]
+#endif
+	[TestFixture(false)]
 	public class BatcherFixture: TestCase
 	{
+		private readonly bool _useDbBatch;
+
+		public BatcherFixture(bool useDbBatch)
+		{
+			_useDbBatch = useDbBatch;
+		}
 		protected override string MappingsAssembly
 		{
 			get { return "NHibernate.Test"; }
@@ -22,10 +31,22 @@ protected override void Configure(Configuration configuration)
 			configuration.SetProperty(Environment.FormatSql, "true");
 			configuration.SetProperty(Environment.GenerateStatistics, "true");
 			configuration.SetProperty(Environment.BatchSize, "10");
+			#if NET6_0_OR_GREATER
+			if (_useDbBatch)
+			{
+				configuration.SetProperty(Environment.BatchStrategy, typeof(DbBatchBatcherFactory).AssemblyQualifiedName);
+			}
+			#endif
 		}
 
 		protected override bool AppliesTo(Engine.ISessionFactoryImplementor factory)
 		{
+#if NET6_0_OR_GREATER
+			if (_useDbBatch)
+			{
+				return factory.Settings.BatcherFactory is DbBatchBatcherFactory && factory.Settings.ConnectionProvider.Driver is Driver.DriverBase driverBase && driverBase.CanCreateBatch;
+			}
+#endif
 			return !(factory.Settings.BatcherFactory is NonBatchingBatcherFactory);
 		}
 
@@ -129,13 +150,18 @@ public void SqlClientOneRoundTripForUpdateAndInsert()
 			Cleanup();
 		}
 
-		[Test, NetFxOnly]
+		[Test]
 		[Description("SqlClient: The batcher log output should be formatted")]
 		public void BatchedoutputShouldBeFormatted()
 		{
 #if NETFX
 			if (Sfi.Settings.BatcherFactory is SqlClientBatchingBatcherFactory == false)
 				Assert.Ignore("This test is for SqlClientBatchingBatcher only");
+#elif NET6_0_OR_GREATER
+			if (Sfi.Settings.BatcherFactory is DbBatchBatcherFactory == false)
+				Assert.Ignore("This test is for DbBatchBatcherFactory only");
+#else
+			Assert.Ignore("This test is for NETFX and NET6_0_OR_GREATER only");
 #endif
 
 			using (var sqlLog = new SqlLogSpy())

Diff for: src/NHibernate.Test/Async/Ado/BatcherFixture.cs

@@ -16,9 +16,18 @@ namespace NHibernate.Test.Ado
 {
 	using System.Threading.Tasks;
 	using System.Threading;
-	[TestFixture]
+#if NET6_0_OR_GREATER
+	[TestFixture(true)]
+#endif
+	[TestFixture(false)]
 	public class BatcherFixtureAsync: TestCase
 	{
+		private readonly bool _useDbBatch;
+
+		public BatcherFixtureAsync(bool useDbBatch)
+		{
+			_useDbBatch = useDbBatch;
+		}
 		protected override string MappingsAssembly
 		{
 			get { return "NHibernate.Test"; }
@@ -34,10 +43,22 @@ protected override void Configure(Configuration configuration)
 			configuration.SetProperty(Environment.FormatSql, "true");
 			configuration.SetProperty(Environment.GenerateStatistics, "true");
 			configuration.SetProperty(Environment.BatchSize, "10");
+			#if NET6_0_OR_GREATER
+			if (_useDbBatch)
+			{
+				configuration.SetProperty(Environment.BatchStrategy, typeof(DbBatchBatcherFactory).AssemblyQualifiedName);
+			}
+			#endif
 		}
 
 		protected override bool AppliesTo(Engine.ISessionFactoryImplementor factory)
 		{
+#if NET6_0_OR_GREATER
+			if (_useDbBatch)
+			{
+				return factory.Settings.BatcherFactory is DbBatchBatcherFactory && factory.Settings.ConnectionProvider.Driver is Driver.DriverBase driverBase && driverBase.CanCreateBatch;
+			}
+#endif
 			return !(factory.Settings.BatcherFactory is NonBatchingBatcherFactory);
 		}
 
@@ -101,13 +122,18 @@ public async Task OneRoundTripUpdateAsync()
 			await (CleanupAsync());
 		}
 
-		[Test, NetFxOnly]
+		[Test]
 		[Description("SqlClient: The batcher log output should be formatted")]
 		public async Task BatchedoutputShouldBeFormattedAsync()
 		{
 #if NETFX
 			if (Sfi.Settings.BatcherFactory is SqlClientBatchingBatcherFactory == false)
 				Assert.Ignore("This test is for SqlClientBatchingBatcher only");
+#elif NET6_0_OR_GREATER
+			if (Sfi.Settings.BatcherFactory is DbBatchBatcherFactory == false)
+				Assert.Ignore("This test is for DbBatchBatcherFactory only");
+#else
+			Assert.Ignore("This test is for NETFX and NET6_0_OR_GREATER only");
 #endif
 
 			using (var sqlLog = new SqlLogSpy())

Diff for: src/NHibernate.Test/NHibernate.Test.csproj

@@ -64,7 +64,7 @@
   <ItemGroup>
     <PackageReference Include="log4net" Version="2.0.15" />
     <PackageReference Include="Microsoft.AspNetCore.OData" Version="7.7.0" />
-    <PackageReference Include="Microsoft.Data.SqlClient" Version="3.1.5" />
+    <PackageReference Include="Microsoft.Data.SqlClient" Version="5.2.0" />
     <PackageReference Include="NHibernate.Caches.CoreDistributedCache.Memory" Version="5.9.0" />
     <PackageReference Include="NHibernate.Caches.Util.JsonSerializer" Version="5.9.0" />
     <PackageReference Include="System.Data.SQLite.Core" Version="1.0.117" />

Diff for: src/NHibernate/AdoNet/ConnectionManager.cs

@@ -514,6 +514,30 @@ public void EnlistInTransaction(DbCommand command)
 			}
 		}
 
+#if NET6_0_OR_GREATER
+		/// <summary>
+		/// Enlist a batch in the current transaction, if any.
+		/// </summary>
+		/// <param name="batch">The batch to enlist.</param>
+		public void EnlistInTransaction(DbBatch batch)
+		{
+			if (batch == null)
+				throw new ArgumentNullException(nameof(batch));
+
+			if (_transaction is ITransactionWithBatchSupport transactionWithBatch)
+			{
+				transactionWithBatch.Enlist(batch);
+				return;
+			}
+
+			if (batch.Transaction != null)
+			{
+				_log.Warn("set a nonnull DbCommand.Transaction to null because the Session had no Transaction");
+				batch.Transaction = null;
+			}
+		}
+#endif
+
 		/// <summary>
 		/// Enlist the connection into provided transaction if the connection should be enlisted.
 		/// Do nothing in case an explicit transaction is ongoing.