From c333ee37ad4b042175d8dbff0c26c75d216e4ab3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andrea=20Knez=20Kara=C4=8Di=C4=87?=
 <zelenokosazelena@gmail.com>
Date: Sun, 4 Dec 2016 19:58:06 +0100
Subject: [PATCH] Extracting IDatabaseMetadata drom DatabaseMetadata

---
 src/NHibernate/Cfg/Configuration.cs              |  4 ++--
 src/NHibernate/NHibernate.csproj                 |  3 ++-
 src/NHibernate/Tool/hbm2ddl/DatabaseMetadata.cs  |  3 +--
 src/NHibernate/Tool/hbm2ddl/IDatabaseMetadata.cs | 11 +++++++++++
 4 files changed, 16 insertions(+), 5 deletions(-)
 create mode 100644 src/NHibernate/Tool/hbm2ddl/IDatabaseMetadata.cs

diff --git a/src/NHibernate/Cfg/Configuration.cs b/src/NHibernate/Cfg/Configuration.cs
index 81f63f4fdf1..d042599f730 100644
--- a/src/NHibernate/Cfg/Configuration.cs
+++ b/src/NHibernate/Cfg/Configuration.cs
@@ -2319,7 +2319,7 @@ private static T[] AppendListeners<T>(T[] existing, T[] listenersToAdd)
 		/// Generate DDL for altering tables
 		///</summary>
 		/// <seealso cref="NHibernate.Tool.hbm2ddl.SchemaUpdate"/>
-		public string[] GenerateSchemaUpdateScript(Dialect.Dialect dialect, DatabaseMetadata databaseMetadata)
+		public string[] GenerateSchemaUpdateScript(Dialect.Dialect dialect, IDatabaseMetadata databaseMetadata)
 		{
 			SecondPassCompile();
 
@@ -2399,7 +2399,7 @@ public string[] GenerateSchemaUpdateScript(Dialect.Dialect dialect, DatabaseMeta
 			return script.ToArray();
 		}
 
-		public void ValidateSchema(Dialect.Dialect dialect, DatabaseMetadata databaseMetadata)
+		public void ValidateSchema(Dialect.Dialect dialect, IDatabaseMetadata databaseMetadata)
 		{
 			SecondPassCompile();
 
diff --git a/src/NHibernate/NHibernate.csproj b/src/NHibernate/NHibernate.csproj
index 4c07150826f..164f11370e9 100644
--- a/src/NHibernate/NHibernate.csproj
+++ b/src/NHibernate/NHibernate.csproj
@@ -143,6 +143,7 @@
     <Compile Include="Connection\DriverConnectionProvider.cs" />
     <Compile Include="Connection\IConnectionProvider.cs" />
     <Compile Include="Connection\UserSuppliedConnectionProvider.cs" />
+    <Compile Include="Tool\hbm2ddl\IDatabaseMetadata.cs" />
     <Compile Include="Util\DelegateHelper.cs" />
     <Compile Include="Dialect\BitwiseFunctionOperation.cs" />
     <Compile Include="Dialect\DB2Dialect.cs" />
@@ -1823,4 +1824,4 @@
     </GetReferenceAssemblyPaths>
     <Exec Command="$(SolutionDir)..\Tools\ilrepack\ilrepack.exe /verbose /t:library /targetplatform:v4,&quot;$(_ReferenceAssembliesPath).&quot; /keyfile:$(AssemblyOriginatorKeyFile) /internalize:internalize.exclude /out:$(OutputPath)\NHibernate.dll $(IntermediateOutputPath)\NHibernate.dll $(OutputPath)\Remotion.Linq.dll $(OutputPath)\Antlr3.Runtime.dll" />
   </Target>
-</Project>
+</Project>
\ No newline at end of file
diff --git a/src/NHibernate/Tool/hbm2ddl/DatabaseMetadata.cs b/src/NHibernate/Tool/hbm2ddl/DatabaseMetadata.cs
index e7f6cebb88c..e70653a53f0 100644
--- a/src/NHibernate/Tool/hbm2ddl/DatabaseMetadata.cs
+++ b/src/NHibernate/Tool/hbm2ddl/DatabaseMetadata.cs
@@ -1,5 +1,4 @@
 using System;
-using System.Collections;
 using System.Collections.Generic;
 using System.Data;
 using System.Data.Common;
@@ -11,7 +10,7 @@
 
 namespace NHibernate.Tool.hbm2ddl
 {
-	public class DatabaseMetadata
+	public class DatabaseMetadata : IDatabaseMetadata
 	{
 		private static readonly IInternalLogger log = LoggerProvider.LoggerFor(typeof (DatabaseMetadata));
 
diff --git a/src/NHibernate/Tool/hbm2ddl/IDatabaseMetadata.cs b/src/NHibernate/Tool/hbm2ddl/IDatabaseMetadata.cs
new file mode 100644
index 00000000000..1f17b2bbbaf
--- /dev/null
+++ b/src/NHibernate/Tool/hbm2ddl/IDatabaseMetadata.cs
@@ -0,0 +1,11 @@
+using NHibernate.Dialect.Schema;
+
+namespace NHibernate.Tool.hbm2ddl
+{
+    public interface IDatabaseMetadata
+    {
+        ITableMetadata GetTableMetadata(string name, string schema, string catalog, bool isQuoted);
+        bool IsSequence(object key);
+        bool IsTable(object key);
+    }
+}