diff options
Diffstat (limited to 'lib/protocols/Relation.mli')
| -rw-r--r-- | lib/protocols/Relation.mli | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/protocols/Relation.mli b/lib/protocols/Relation.mli index be11cc1..28dfdff 100644 --- a/lib/protocols/Relation.mli +++ b/lib/protocols/Relation.mli @@ -2,9 +2,19 @@ type t class type implementation = object method contains : Concepts.Tuple.t -> (bool, Concepts.Condition.condition) result + method modes : (Concepts.Mode.t, Concepts.Condition.condition) result end val make : #implementation -> Handle.protocol val from : Handle.t -> t Handle.interface option val require : Handle.t -> (t Handle.interface, Concepts.Condition.condition) result val contains : t Handle.interface -> Concepts.Tuple.t -> (bool, Concepts.Condition.condition) result +val modes : t Handle.interface -> (Concepts.Mode.t, Concepts.Condition.condition) result + +(** the heading a relation describes itself with. *) +val heading : Handle.t -> (Schematics.relation_description, Concepts.Condition.condition) result + +(** the heading and tuples of a relation, read whole. *) +val read : + Handle.t -> + (Schematics.relation_description * Concepts.Tuple.t list, Concepts.Condition.condition) result |