GraphClosed(false);

        public final boolean mutable;

        State(boolean mutable) {
            this.mutable = mutable;
        }

        public State previous() {
            return ModelNode.State.values()[ordinal() - 1];
        }

        public boolean isAtLeast(State state) {
            return this.ordinal() >= state.ordinal();
        }
    }

    ModelPath getPath();

// state of a system.
type CarpStatus struct {
	// Current condition of the carp.
	// More info: http://kubernetes.io/docs/user-guide/carp-states#carp-phase
	// +optional
	Phase CarpPhase `json:"phase,omitempty" protobuf:"bytes,1,opt,name=phase,casttype=CarpPhase"`
	// Current service state of carp.
	// More info: http://kubernetes.io/docs/user-guide/carp-states#carp-conditions
	// +optional

// state of a system.
message CarpStatus {
  // Current condition of the carp.
  // More info: http://kubernetes.io/docs/user-guide/carp-states#carp-phase
  // +optional
  optional string phase = 1;

  // Current service state of carp.
  // More info: http://kubernetes.io/docs/user-guide/carp-states#carp-conditions
  // +optional

	r.lock.RLock()
	defer r.lock.RUnlock()
	return r.generation, r.state == Ready
}

// set the state to Pending (false) or Ready (true), it does not have effect if the state is Stopped.
func (r *ready) set(ok bool) {
	r.lock.Lock()
	defer r.lock.Unlock()
	if r.state == Stopped {
		return
	}
	if ok && r.state == Pending {
		r.state = Ready
		r.generation++
		select {
		case <-r.waitCh:
		default:

}

func (s *schemaImpl) Status() (config.Status, error) {
	statTyp := s.statusType
	if statTyp == nil {
		return nil, errors.New("unknown status type")
	}
	instance := reflect.New(statTyp).Interface()
	p, ok := instance.(config.Status)
	if !ok {
		return nil, fmt.Errorf("status: statusType not an instance of config.Status. type: %v, value: %v", statTyp, instance)
	}
	return p, nil
}

            for (ChainState state : toProcess) {
                // The set of transforms which could potentially produce a variant compatible with `requested`.
                ImmutableFilteredList<TransformRegistration> candidates =
                    state.transforms.matching(transform -> matcher.isMatching(transform.getTo(), state.requested));

// state of a system.
message CarpStatus {
  // Current condition of the carp.
  // More info: http://kubernetes.io/docs/user-guide/carp-states#carp-phase
  // +optional
  optional string phase = 1;

  // Current service state of carp.
  // More info: http://kubernetes.io/docs/user-guide/carp-states#carp-conditions
  // +optional

// state of a system.
type PodStatus struct {
	// Current condition of the pod.
	// More info: http://kubernetes.io/docs/user-guide/pod-states#pod-phase
	// +optional
	Phase PodPhase `json:"phase,omitempty" protobuf:"bytes,1,opt,name=phase,casttype=PodPhase"`
	// Current service state of pod.
	// More info: http://kubernetes.io/docs/user-guide/pod-states#pod-conditions
	// +optional

The term _feature_ typically means an API or DSL method or property in this context, but it is not restricted to this definition.
Command line arguments and modes of execution (e.g. the Build Daemon) are two examples of other features.

[[sec:states]]
== Feature States

Features can be in one of four states:

1. <<#sec:internal,Internal>>

     * @param <S> type of the binary to return
     * @return a binary from the collection in a finalized state
     */
    <S> BinaryProvider<S> get(Class<S> type, Spec<? super S> spec);

    /**
     * Returns a {@link BinaryProvider} that contains the single binary with the given name. The binary will be in the finalized state. The provider can be used to apply configuration to the element before it is finalized.
     *