From 5e93dddaff4e1707bd224b279147b902e32d245e Mon Sep 17 00:00:00 2001
From: Doug Blank <doug.blank@gmail.com>
Date: Thu, 31 May 2012 13:57:05 +0000
Subject: [PATCH] Added an interface for databases to implement additional
 features/values

svn: r19721
---
 src/gen/db/base.py | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/gen/db/base.py b/src/gen/db/base.py
index cd8ad494c..30a1e93b4 100644
--- a/src/gen/db/base.py
+++ b/src/gen/db/base.py
@@ -58,6 +58,20 @@ class DbReadBase(object):
         derived from this class should be created.
         """
         self.basedb = self
+        self.__feature = {} # {"feature": VALUE, ...}
+
+    def get_feature(self, feature):
+        """
+        Databases can implement certain features or not. The default is
+        None, unless otherwise explicitly stated.
+        """
+        return self.__feature.get(feature, None) # can also be explitily None
+
+    def set_feature(self, feature, value):
+        """
+        Databases can implement certain features. 
+        """
+        self.__feature[feature] = value
 
     def all_handles(self, table):
         """