import org.eclipse.sapphire.modeling.IModelElement;
import org.eclipse.sapphire.modeling.ListProperty;
import org.eclipse.sapphire.modeling.ModelElementList;
import org.eclipse.sapphire.modeling.ModelElementType;
import org.eclipse.sapphire.modeling.annotations.CountConstraint;
import org.eclipse.sapphire.modeling.annotations.GenerateImpl;
import org.eclipse.sapphire.modeling.annotations.Label;
import org.eclipse.sapphire.modeling.annotations.Type;
import org.eclipse.sapphire.modeling.xml.annotations.XmlBinding;
import org.eclipse.sapphire.modeling.xml.annotations.XmlListBinding;
import org.eclipse.sapphire.modeling.xml.annotations.XmlNamespace;
import org.eclipse.sapphire.modeling.xml.annotations.XmlSchema;

@GenerateImpl
@XmlNamespace(uri = "http://www.example.org/TestSystem")
@XmlSchema(namespace = "http://www.example.org/TestSystem", location = "http://www.example.org/TestSystem/1.0")
@XmlBinding(path = "root")
public interface Root extends IModelElement {

    ModelElementType TYPE = new ModelElementType(Root.class);

    // *** Description ***
    // @formatter:off
    @CountConstraint(min = 1)
    @Type(base = DescriptionBase.class, possible = { DescriptionA.class, DescriptionB.class, DescriptionC.class, DescriptionD.class })
    @XmlListBinding
    (
        path = "descriptions", 
        mappings = 
        {
                @XmlListBinding.Mapping(element = "a", type = DescriptionA.class),
                @XmlListBinding.Mapping(element = "b", type = DescriptionB.class), 
                @XmlListBinding.Mapping(element = "c", type = DescriptionC.class),
                @XmlListBinding.Mapping(element = "d", type = DescriptionD.class)
        }
    )
    
    ListProperty PROP_DESCRIPTION_BASE = new ListProperty(TYPE, "DescriptionBase");
    
    ModelElementList<DescriptionBase> getDescriptionBase();
    // @formatter:on

    // *** Item ***
    @Type(base = Item.class)
    @Label(standard = "items")
    @CountConstraint(min = 1)
    @XmlListBinding(mappings = @XmlListBinding.Mapping(element = "item", type = Item.class))
    ListProperty PROP_ITEMS = new ListProperty(TYPE, "Items");

    ModelElementList<Item> getItems();
}

// *** Item ***
@Type(base = Item.class)
@Label(standard = "items")
//@CountConstraint(min = 1)
@Validation(rule = "${Items.Size > 0}", message = "Min. one elemente!", severity = Severity.ERROR)
@XmlListBinding(mappings = @XmlListBinding.Mapping(element = "item", type = Item.class))
ListProperty PROP_ITEMS = new ListProperty(TYPE, "Items");

ModelElementList<Item> getItems();