API Reference > imodeljs-backend > Relationships > PhysicalElementAssemblesElements PhysicalElementAssemblesElements Class Relates a parent PhysicalElement to PhysicalElement children that it assembles. Extends ElementOwnsChildElements Methods Name Description constructor(parentId: string, relClassName: string = PhysicalElementAssemblesElements.classFullName): PhysicalElementAssemblesElements Inherited methods Name Inherited from Description toJSON(): RelatedElementProps ElementOwnsChildElements fromJSON(json?: RelatedElementProps): undefined | RelatedElement Static ElementOwnsChildElements idFromJson(json: any): string Static ElementOwnsChildElements Accept the value of a navigation property that might be in the shortened format of just an id or might be in the full RelatedElement format. Properties Name Type Description classFullName Static string Inherited properties Name Type Inherited from Description id Readonly string ElementOwnsChildElements The Id of the element to which this element is related. none StaticReadonly RelatedElement ElementOwnsChildElements Used to null out an existing navigation relationship. relClassName Readonly undefined | string ElementOwnsChildElements The full className of the relationship class. Defined in core/backend/src/NavigationRelationship.ts Line 78 Last Updated: 12 June, 2024