diff options
Diffstat (limited to 'include/operations.hrl')
| -rw-r--r-- | include/operations.hrl | 23 |
1 files changed, 4 insertions, 19 deletions
diff --git a/include/operations.hrl b/include/operations.hrl index f6fa4c0..52f2f4c 100644 --- a/include/operations.hrl +++ b/include/operations.hrl @@ -7,7 +7,7 @@ name, % Relation name (atom) tree, % Merkle tree (mutable only), undefined for immutable/generator-based schema, % #{attribute_name => relation_name} - constraints, % #relation_constraints{} - all constraint types (1OP, 2OP, 3OP) + constraints, % #relation_constraints{} - logical formulas over membership tests cardinality, % {finite, N} | aleph_zero | continuum generator, % Generator function (immutable only), undefined for tree-based membership_criteria, % #{attribute_name => constraint:relational_constraint()} - domain membership test @@ -27,25 +27,10 @@ cardinality % {finite, N} | aleph_zero | continuum }). -%% Attribute constraint (1OP - 1st Order Property) -%% Constrains values of a specific attribute in a relation --record(attribute_constraint, { - name :: atom(), % Stable identifier for lifecycle ops - attribute :: atom(), % Attribute name (e.g., salary) - domain :: atom() | #relation{}, % Domain or relation this attribute draws from - constraints :: [term()] % Additional relational constraints beyond domain membership -}). - --record(tuple_constraint, { - name :: atom(), % Stable identifier for lifecycle ops - constraints :: [term()] -}). - -%% Relation constraints - holds all types of constraints for a relation +%% Relation constraints - unified logical formulas. +%% Every formula is evaluated as a membership test expression over tuple bindings. -record(relation_constraints, { - attribute_constraints :: #{atom() => [#attribute_constraint{}]}, % 1OPs - per-attribute named constraints - tuple_constraints :: [#tuple_constraint{}], % 2OPs - inter-attribute constraints - multi_tuple_constraints :: [term()] % 3OPs - multi-tuple constraints (future) + constraints :: [{atom(), term()}] }). %%% Cardinality Types |