From 4a231a34f27ebb6cde95457faef33c9c923b2669 Mon Sep 17 00:00:00 2001 From: Benjamin Eberlei Date: Fri, 31 Dec 2010 14:44:14 +0100 Subject: [PATCH] Clarify MappedSuperclass and Unidirectional associations (with info on one-to-many and many-to-many associations). --- en/reference/inheritance-mapping.rst | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/en/reference/inheritance-mapping.rst b/en/reference/inheritance-mapping.rst index 6128b7a4c..c4e76c531 100644 --- a/en/reference/inheritance-mapping.rst +++ b/en/reference/inheritance-mapping.rst @@ -18,7 +18,11 @@ appear in the middle of an otherwise mapped inheritance hierarchy A mapped superclass cannot be an entity, it is not query-able and persistent relationships defined by a mapped superclass must be - unidirectional. For further support of inheritance, the single or + unidirectional (with an owning side only). This means that One-To-Many + assocations are not possible on a mapped superclass at all. + Furthermore Many-To-Many associations are only possible if the + mapped superclass is only used in exactly one entity at the moment. + For further support of inheritance, the single or joined table inheritance features have to be used.