Association relationships

AssociationRelationship.directed is resolved to a boolean for association relationships:

interface ArchiRelationship {
  directed: boolean | null;
}

Defaults

• For an AssociationRelationship, the field is always resolved to a boolean — false is the native default when the attribute is absent (Archi’s own type default).
• For every other relationship type, directed is null.

Example

const undirected = model.relationships.filter(
  (r) => r.type === 'AssociationRelationship' && r.directed === false,
);

console.log('undirected associations:', undirected.length);