--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/BackendFactory.py	Tue Aug 23 14:36:58 2011 +0200
@@ -0,0 +1,23 @@
+
+import argparse
+
+SQLALCHEMY_BACKEND = "sqlalchemy"
+COUCHDB_BACKEND = "couchdb"
+
+def _parseArguments():
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--backend", nargs="?", choices=[SQLALCHEMY_BACKEND, COUCHDB_BACKEND], 
+        required=True, help="Specify the backend to use: either sqlalchemy or couchdb")
+    return parser.parse_known_args()
+
+def createBackend():
+    args = _parseArguments()
+    backend = args[0].backend
+    if backend == SQLALCHEMY_BACKEND:
+        from backend.sqlalchemy.SqlAlchemyBackend import SqlAlchemyBackend
+        return SqlAlchemyBackend()
+    elif backend == COUCHDB_BACKEND:
+        from backend.couchdb.CouchDbBackend import CouchDbBackend
+        return CouchDbBackend()
+    else:
+        raise Exception("no backend configured")