}
            return finalizeOnNextGet || consumer == ValueSupplier.ValueConsumer.DisallowUnsafeRead;
        }

        @Override
        public ValueSupplier.ValueConsumer forUpstream(ValueSupplier.ValueConsumer consumer) {
            if (disallowUnsafeRead) {
                return ValueSupplier.ValueConsumer.DisallowUnsafeRead;
            } else {
                return consumer;
            }
        }

    }

    @Override
    public void implicitFinalizeValue() {
        state.disallowChangesAndFinalizeOnNextGet();
    }

    @Override
    public void disallowUnsafeRead() {
        state.disallowUnsafeRead();
    }

    protected abstract S finalValue(EvaluationContext.ScopeContext context, S value, ValueConsumer consumer);

    protected void setSupplier(S supplier) {

        // so we do not #disallowChanges().
        valueState.finalizeOnNextGet();
    }

    @Override
    public void disallowUnsafeRead() {
        valueState.disallowUnsafeRead();
    }

    @Override
    public int getFactoryId() {
        return ManagedFactories.ConfigurableFileCollectionManagedFactory.FACTORY_ID;
    }

    @Override