--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/persistentstorage/sql/SRC/Server/SqlSrvObjContainer.h	Fri Jan 22 11:06:30 2010 +0200
@@ -0,0 +1,83 @@
+// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+#ifndef __SQLSRVOBJCONTAINER_H__
+#define __SQLSRVOBJCONTAINER_H__
+
+#include <e32std.h>
+#include "SqlPanic.h"
+
+/**
+Indexed storage for server sdide objects.
+
+RDbObjContainer container is used for storing IPC stream handles (HIpcStream) and 
+statement handles (CSqlSrvStatement).
+
+Behaviour when the container is destroyed:
+ - all objects inside the container are destroyed too;
+ 
+Behaviour when the an object is removed from the container:
+ - the container will destroy the object;
+
+Behaviour when the an object is added to the container:
+ - the container stores the object <by_ref>, not <by_val>;
+
+Behaviour when a look up is performed in the container for an object:
+ - a pointer to the object is returned or NULL if there is no object;
+
+@see CSqlSrvStatement
+@see HIpcStream
+@see RDbObjContainer::Close()
+@see RDbObjContainer::AllocL()
+@see RDbObjContainer::Add()
+@see RDbObjContainer::Remove()
+@see RDbObjContainer::Find()
+@see RDbObjContainer::Count()
+
+@internalComponent
+*/
+template <class T> class RDbObjContainer
+	{
+public:
+	RDbObjContainer();
+	void Close();
+	void AllocL();
+	TInt Add(T* aObj);
+	void Remove(TInt aHandle);
+	T* Find(TInt aHandle) const;
+	TInt Count() const;
+
+private:	
+	TInt MakeHandle(TInt aIndex) const;
+	TInt MakeIndex(TInt aHandle) const;
+	
+private:	
+	struct TEntry
+		{
+		T*		iObj;
+		TInt	iNext;
+		};
+	enum {KGranularity = 16};
+	//KMaxSize value depends on how many bits are used for handles - see
+	//KStmtHandleMask and KStreamHandleMask in SqlUtil.h file.
+	enum {KMaxSize = 0x7FF};
+	TEntry*	iEntries;
+	TInt	iSize;
+	TInt 	iFree;
+	};
+
+#include "SqlSrvObjContainer.inl"
+
+#endif//__SQLSRVOBJCONTAINER_H__