modicio/modic.io.model/ParentRelation

ParentRelation

@Entity

class ParentRelation(var dataID: Long? = null, val uri: String = "", var node: Node? = null)

The ParentRelation models inheritance between two Nodes. This relation is a unidirectional edge and is owned by the child Node, i.e., the specialization.

The parent link is an open property, i.e., it is only evaluated at runtime if resolution is possible. Resolution must be possible during instantiation.
Parents must be from the same Fragment.

Constructors

ParentRelation

constructor()

constructor(dataID: Long? = null, uri: String = "", node: Node? = null)

Properties

dataID

var dataID: Long?

Technical database (JPA) identifier used for relation joins. The dataID is system specific and not exported to XML. It must not be used to identify elements in distributed use-cases. It should not be used to identify elements from outside the service. All model elements provide other suitable identifiers to be used.

node

var node: Node?

Autowired link that is not part of the JPA schema (transient). This is not the parent Node! But the owner of this element.

uri

val uri: String

The URI defines the target parent Node to inherit from by its URI. This reference is resolved during edit, load and store. Otherwise, the model becomes (temporarily) invalid. A modicio URI is defined as a "xs:anyURI" base with the schema extension "modicio:.*"

Functions

initializeZeroIDs

fun initializeZeroIDs()