com.r3corda.core.contracts / UniqueIdentifier

UniqueIdentifier

data class UniqueIdentifier : Comparable<UniqueIdentifier>

This class provides a truly unique identifier of a trade, state, or other business object.

Parameters

externalId - If there is an existing weak identifier e.g. trade reference id. This should be set here the first time a UniqueIdentifier identifier is created as part of an issue, or ledger on-boarding activity. This ensure that the human readable identity is paired with the strong id.

id - Should never be set by user code and left as default initialised. So that the first time a state is issued this should be given a new UUID. Subsequent copies and evolutions of a state should just copy the externalId and Id fields unmodified.


Constructors

<init> UniqueIdentifier(externalId: String? = null, id: UUID = UUID.randomUUID())

This class provides a truly unique identifier of a trade, state, or other business object.

Properties

externalId val externalId: String?
id val id: UUID

Functions

compareTo fun compareTo(other: UniqueIdentifier): Int
toString fun toString(): String

Companion Object Functions

fromString fun fromString(name: String): UniqueIdentifier