public Map<String, String> getAttributes()
Additional attributes to render within the <option>. May return null.

 public String getLabel()
The localized, user-presentable label for the option.

 public Object getValue()
The server-side value represented by this option. This is used to determine which option will be selected. It is
also used, via ValueEncoder#toClient(Object) , to generate the client-side value attribute.

 public boolean isDisabled()
If true, then a disabled attribute will be rendered with the <option>.