Merge "types: Set 'cache_ok' (redux)"

1 files changed, 7 insertions, 1 deletions

diff --git a/oslo_db/sqlalchemy/types.py b/oslo_db/sqlalchemy/types.py
index a86f5ac..fe40bbd 100644
--- a/oslo_db/sqlalchemy/types.py
+++ b/oslo_db/sqlalchemy/types.py
@@ -69,6 +69,8 @@ class JsonEncodedDict(JsonEncodedType):
     """
 
     type = dict
+    cache_ok = True
+    """This type is safe to cache."""
 
 
 class JsonEncodedList(JsonEncodedType):
@@ -81,6 +83,8 @@ class JsonEncodedList(JsonEncodedType):
     """
 
     type = list
+    cache_ok = True
+    """This type is safe to cache."""
 
 
 class SoftDeleteInteger(TypeDecorator):
@@ -120,9 +124,11 @@ class String(_String):
 
     mysql_ndb_type is used to override the String with another data type.
     mysql_ndb_size is used to adjust the length of the String.
-
     """
 
+    cache_ok = True
+    """This type is safe to cache."""
+
     def __init__(
             self, length, mysql_ndb_length=None, mysql_ndb_type=None, **kw):
         """Initialize options."""