2 files changed, 6 insertions, 3 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/connection_specification.rb b/activerecord/lib/active_record/connection_adapters/abstract/connection_specification.rb
index ccb79f547a..6675041895 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/connection_specification.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/connection_specification.rb
@@ -122,7 +122,8 @@ module ActiveRecord
       def retrieve_connection
         connection_handler.retrieve_connection(self)
       end
-
+      
+      # Returns true if +ActiveRecord+ is connected.
       def connected?
         connection_handler.connected?(self)
       end
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb
index 58992f91da..ab3c6d843c 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb
@@ -31,11 +31,13 @@ module ActiveRecord
 
         @primary = nil
       end
-
+      
+      # Returns +true+ if the column is either of type string or text.
       def text?
         type == :string || type == :text
       end
-
+      
+      # Returns +true+ if the column is either of type integer, float or decimal.
       def number?
         type == :integer || type == :float || type == :decimal
       end