* property type does NOT corres. to a rudimentary property value.
*/
@SuppressWarnings("unchecked")
private IModelProperty createValueProperty(final Class<?> ptype, final String pname, final Object obj,
final PropertyMetadata pdata) {
IModelProperty prop = null;
if(String.class == ptype) {
prop = new StringPropertyValue(pname, pdata, (String) obj);
}