public void setResult(ComponentGraphResolveState state) {
        assertResolved();
        this.state = state;
    }

    @Override
    public ComponentIdentifier getId() {
        assertResolved();
        return state.getId();
    }

    @Override
    public ModuleVersionIdentifier getModuleVersionId() throws ModuleVersionResolveException {
        assertResolved();
        return state.getMetadata().getModuleVersionId();
    }

    }

    @Override
    public ComponentIdentifier getId() {
        assertResolved();
        return id;
    }

    @Override
    public ModuleVersionIdentifier getModuleVersionId() {
        assertResolved();
        return moduleVersionId;
    }

    @Override
    public ComponentGraphResolveState getState() {
        assertResolved();
        return state;
    }

    @Nullable
    @Override

        reset(State.Resolved);
        this.failure = null;
        this.metaData = metaData;
        authoritative = true;
    }

    @Override
    public void setMetadata(T metaData) {
        assertResolved();
        this.metaData = metaData;
    }

    @Override
    public void missing() {
        reset(State.Missing);
        this.metaData = null;
        this.failure = null;
        authoritative = true;