--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javacommons/javastorage/src/javadataaccess.h	Mon May 03 12:27:20 2010 +0300
@@ -0,0 +1,96 @@
+/*
+* Copyright (c) 2008-2009 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:  JavaDataAccess
+*
+*/
+
+
+#ifndef JAVADATAACCESS_H
+#define JAVADATAACCESS_H
+
+#include <stdio.h>
+#include <string>
+
+#include "javaosheaders.h"
+#include "javastorageexception.h"
+
+namespace java
+{
+namespace comms
+{
+class CommsMessage;
+}    // end namespace comms
+namespace storage
+{
+
+/**
+ * JavaDataAccess is JavaStorage internal API to hide different communications
+ * between storage server processes.
+ */
+class JavaDataAccess
+{
+public:
+
+    virtual ~JavaDataAccess() {}
+
+    /**
+     * Create API instance.
+     *
+     * @return Instance to JavaDataAccess API. Ownership is transfered to
+     *         caller.
+     * @throws JavaStorageException if communication channel creation fails.
+     */
+    OS_IMPORT static JavaDataAccess* createInstance()
+    throw(JavaStorageException);
+
+    /**
+     * Open storage connection. If storage does not exist create it.
+     *
+     * @param aStorageName Name of the storage
+     * @throws JavaStorageException if communication fails.
+     */
+    virtual void open(const std::string& aHeaders,
+                      const std::string& aStorageName,
+                      comms::CommsMessage& aReceivedMessage)
+    throw(JavaStorageException) = 0;
+
+    /**
+     * Close storage connection and free its resources.
+     *
+     * @param aHeaders message headers.
+     * @param aReceivedMessage received message.
+     * @throws JavaStorageException if communication fails.
+     */
+    virtual void close(const std::string& aHeaders,
+                       comms::CommsMessage& aReceivedMessage)
+    throw(JavaStorageException) = 0;
+
+    /**
+     * Execute SQL statement to storage.
+     *
+     * @param aHeaders message headers.
+     * @param aSqlStatement SQL statement.
+     * @throws JavaStorageException if communication fails.
+     */
+    virtual void execute(const std::string& aHeaders,
+                         const std::wstring& aSqlStatement,
+                         comms::CommsMessage& aReceivedMessage)
+    throw(JavaStorageException) = 0;
+};
+
+} // end namespace storage
+} // end namespace java
+
+#endif // JAVADATAACCESS_H
+