Returns the represented value if it was already fetched into memory, error otherwise.
Returns the represented value if it was already fetched into memory, error otherwise.
When called on relationship value representations for values that have not yet been fetched into memory.
Describes whether or not the represented value was already fetched into memory.
Describes whether or not the represented value was already fetched into memory.
The owner entity's ID for persisted entities.
The owner entity's ID for persisted entities.
Some(ownerId) for persisted owner entities, or None for unpersisted owner entities.
The represented relationship.
The represented relationship.
Will fetch the represented value from persistant storage.
Will fetch the represented value from persistant storage.
The database definition to be used for executing the request.
The execution context for executing the database the request.
The maximum time execution may take before failing.
Will return the represented value from memory for fetched values or fetch it otherwise.
Will return the represented value from memory for fetched values or fetch it otherwise.
The database definition to be used for executing the request.
The execution context for executing the database the request.
The maximum time execution may take before failing.
Represents the value of a 'to one' relationship for a specific owner instance.