From 44c98b497ff1cb8cddba10b56435f136a583cce2 Mon Sep 17 00:00:00 2001
From: eilers <eilers>
Date: Fri, 27 Sep 2002 17:11:44 +0000
Subject: Added API for accessing the Contact-Database ! It is compiling, but

please do not expect that anything is working !
I will debug that stuff in the next time ..
Please read README_COMPILE for compiling !
---
(limited to 'libopie2/opiepim/backend/ocontactaccessbackend.h')

diff --git a/libopie2/opiepim/backend/ocontactaccessbackend.h b/libopie2/opiepim/backend/ocontactaccessbackend.h
new file mode 100644
index 0000000..9469bbc
--- a/dev/null
+++ b/libopie2/opiepim/backend/ocontactaccessbackend.h
@@ -0,0 +1,70 @@
+/**
+ * The class responsible for managing a backend.
+ * The implementation of this abstract class contains
+ * the complete database handling.
+ *
+ * Copyright (c) 2002 by Stefan Eilers (Eilers.Stefan@epost.de)
+ * Copyright (c) 2002 by Holger Freyther (zecke@handhelds.org)
+ *
+ * =====================================================================
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU Library General Public
+ *      License as published by the Free Software Foundation;
+ *      either version 2 of the License, or (at your option) any later
+ *      version.
+ * =====================================================================
+ * ToDo: Define enum for query settings
+ * =====================================================================
+ * Version: $Id$
+ * =====================================================================
+ * History:
+ * $Log$
+ * Revision 1.1  2002/09/27 17:11:44  eilers
+ * Added API for accessing the Contact-Database ! It is compiling, but
+ * please do not expect that anything is working !
+ * I will debug that stuff in the next time ..
+ * Please read README_COMPILE for compiling !
+ *
+ * =====================================================================
+ *
+ */
+
+#ifndef _OCONTACTACCESSBACKEND_H_
+#define _OCONTACTACCESSBACKEND_H_
+
+#include "opimaccessbackend.h"
+
+class OContactAccessBackend: public OPimAccessBackend<OContact> {
+ public:
+	OContactAccessBackend() {}
+	virtual ~OContactAccessBackend() {}
+
+
+	/** Return if database was changed externally.
+	 * This may just make sense on file based databases like a XML-File.
+	 * It is used to prevent to overwrite the current database content
+	 * if the file was already changed by something else !
+	 * If this happens, we have to reload before save our data.
+	 * If we use real databases, this should be handled by the database
+	 * management system themselve, therefore this function should always return false in
+	 * this case. It is not our problem to handle this conflict ...
+	 * @return <i>true</i> if the database was changed and if save without reload will
+	 * be dangerous. <i>false</i> if the database was not changed or it is save to write
+	 * in this situation.
+	 */
+	virtual bool wasChangedExternally() = 0;
+
+	/** Return all possible settings.
+	 *  @return All settings provided by the current backend
+	 * (i.e.: query_WildCards & query_IgnoreCase)
+	 */
+	virtual const uint querySettings() = 0;
+
+	/** Check whether settings are correct.
+	 * @return <i>true</i> if the given settings are correct and possible.
+	 */
+	virtual bool hasQuerySettings (uint querySettings) const = 0;
+
+
+};
+#endif
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