API Reference > ecschema-Metadata > Metadata > RelationshipConstraint > abstractConstraint abstractConstraint Accessor abstractConstraint: undefined | LazyLoadedRelationshipConstraintClass Returns - undefined | LazyLoadedRelationshipConstraintClass Setter abstractConstraint(abstractConstraint: undefined | LazyLoadedRelationshipConstraintClass): void Parameter Type Description abstractConstraint undefined | LazyLoadedRelationshipConstraintClass Returns - void Defined in core/ecschema-metadata/src/Metadata/RelationshipClass.ts Line 167 Last Updated: 11 June, 2024