Does anybody know how to access the settings made in admin mode for the property by code?

I would like to read them if defined in my factory

  [UIHint("PublicationType")]

        [BackingType(typeof (PropertyDropDownList))]

        [Display(Name = "Publikationstyp", Order = 1, AutoGenerateField = true, Description = "Välj publikationstyp")]

        public virtual string PublicationType { get; set; }

        [UIHint(UIHint.MediaFile)]

        [Display(Name = "Pdf")]

        public virtual ContentReference PdfFile { get; set; }

        [EditorDescriptorRegistration(TargetType = typeof (string), UIHint = "PublicationType")]

        publicclassPublicationTypeEditorDescriptor : EditorDescriptor

        {

            public override void ModifyMetadata(ExtendedMetadata metadata, IEnumerable<Attribute> attributes)

            {

                SelectionFactoryType = typeof (PublicationTypeFactory);

                ClientEditingClass ="epi-cms/contentediting/editors/SelectionEditor";

                base.ModifyMetadata(metadata, attributes);

            }

        }

        privateclassPublicationTypeFactory : ISelectionFactory

        {

            public IEnumerable<ISelectItem> GetSelections(ExtendedMetadata metadata)

            {

//GET CODE FROM ADMIN SETTINS

//ELSE SHOW DEFAULT

                var types = new List<SelectItem>();

                types.Add(new SelectItem() {Value = "Rapporter", Text = "Rapporter"});

                types.Add(new SelectItem() {Value = "Skrivelser", Text = "Skrivelser"});

                types.Add(new SelectItem() {Value = "Informationsmaterial", Text = "Informationsmaterial"});

                return types;

            }

        }

Anyone???