sourceafMorphia::MorphiaErr.fan

** As thrown by Morphia.
const class MorphiaErr : Err {
    new make(Str msg := "", Err? cause := null) : super(msg, cause) { }
}

** Thrown by 'Datastore.update()' when it tried to update an entity when newer data exists.
const class OptimisticLockErr : MorphiaErr {

    ** The entity type being updated.
    const Type type

    ** The out-of-date version number.
    const Int  version

    new make(Str msg, Type type, Int version) : super(msg, null) {
        this.type    = type
        this.version = version
    }
}