Introducing a new factory for creating access objects for the pim backends.

It is still very basic but simplifies the access of the pim database and covers
the creation process itself..
The new class OPimGlobal will contain constants and enums which should be
public available for users of the PIM-classes..

1 files changed, 100 insertions, 0 deletions

diff --git a/libopie2/opiepim/core/opimaccessfactory.h b/libopie2/opiepim/core/opimaccessfactory.h
new file mode 100644
index 0000000..ba99a15
--- a/dev/null
+++ b/libopie2/opiepim/core/opimaccessfactory.h
@@ -0,0 +1,100 @@
+/*
+                             This file is part of the Opie Project
+                             Copyright (C) Stefan Eilers <eilers.stefan@epost.de>
+              =.             Copyright (C) The Opie Team <opie-devel@handhelds.org>
+            .=l.
+           .>+-=
+ _;:,     .>    :=|.         This program is free software; you can
+.> <`_,   >  .   <=          redistribute it and/or  modify it under
+:`=1 )Y*s>-.--   :           the terms of the GNU Library General Public
+.="- .-=="i,     .._         License as published by the Free Software
+ - .   .-<_>     .<>         Foundation; either version 2 of the License,
+     ._= =}       :          or (at your option) any later version.
+    .%`+i>       _;_.
+    .i_,=:_.      -<s.       This program is distributed in the hope that
+     +  .  -:.       =       it will be useful,  but WITHOUT ANY WARRANTY;
+    : ..    .:,     . . .    without even the implied warranty of
+    =_        +     =;=|`    MERCHANTABILITY or FITNESS FOR A
+  _.=:.       :    :=>`:     PARTICULAR PURPOSE. See the GNU
+..}^=.=       =       ;      Library General Public License for more
+++=   -.     .`     .:       details.
+ :     =  ...= . :.=-
+ -.   .:....=;==+<;          You should have received a copy of the GNU
+  -_. . .   )=.  =           Library General Public License along with
+    --        :-=`           this library; see the file COPYING.LIB.
+                             If not, write to the Free Software Foundation,
+                             Inc., 59 Temple Place - Suite 330,
+                             Boston, MA 02111-1307, USA.
+*/
+
+#ifndef __OPIE_OPIMACCESSFACTORY_H_
+#define __OPIE_OPIMACCESSFACTORY_H_
+
+#include <opie2/opimglobal.h>
+#include <opie2/obackendfactory.h>
+#include <opie2/ocontactaccess.h>
+#include <opie2/otodoaccess.h>
+#include <opie2/odatebookaccess.h>
+
+using namespace Opie::Pim;
+
+namespace Opie {
+
+
+/**
+ * This class is our factory for creating PIM access objects. You should use these objects to load, store and search
+ * information in our PIM databases. Currently we support objects for accessing the datebook, the contact- and the
+ * todolist. 
+ * @see OPimGlobal for more information of used values.
+ *
+ * This class - as the whole PIM Api - is making use of templates
+ *
+ * Example for getting an access object for the XML database of todolist:
+ * <pre>
+ *   OPimTodoAccess* access = OPimAccessFactory<OPimTodoAccess>::create( OPimGlobal::TODOLIST, OPimGlobal::XML, "example" );
+ * </pre>
+ *
+ * @author Stefan Eilers
+ * @version 0.1
+ */
+ */
+
+template<class T>
+class OPimAccessFactory
+{
+ public: 
+
+	// Maybe we should introduce a global class for storing such global enums 
+	// (something like opimglobal.h) ? (eilers)
+
+	OPimAccessFactory() {};
+
+	/**
+	 * Returns the selected PIM access-object.
+	 * @param type Type of the selected database (addressbook, todolist or datebook)
+	 * @param dbStyle Which database style should be used (xml, sql, vcard)
+	 * @param appName "Name" of your application. This should be any constant string which is used
+	 *                by some backends for creating special files (i.e.journal files). Please keep the
+	 *                string unique for your application !
+	 * @see OPimGlobal
+	 */
+	static T* create( OPimGlobal::PimType type, OPimGlobal::DatabaseStyle dbStyle, const QString& appName ){
+
+		switch ( type ){
+		case OPimGlobal::TODOLIST:
+			return dynamic_cast<T*>( new OPimTodoAccess( OBackendFactory<OPimTodoAccessBackend>::create( type, dbStyle, appName ) ) );
+		case OPimGlobal::CONTACTLIST:
+			return dynamic_cast<T*>( new OPimContactAccess( QString::null, QString::null, OBackendFactory<OPimContactAccessBackend>::create( type, dbStyle, appName ) ) );
+		case OPimGlobal::DATEBOOK:
+			return dynamic_cast<T*>( new ODateBookAccess( OBackendFactory<ODateBookAccessBackend>::create( type, dbStyle, appName ) ) );
+		default:
+			return 0l;
+			
+		}
+	}
+};
+
+}
+
+
+#endif