form:Checkbox issues

[dawez]

Hi all,

I have been trying to make the form:checkbox working and I am halfway to success . I am using spring MVC 2.5 and I managed to display correctly the checkboxes in the JSP but it seems that they are NOT causing any effects on my collection back in the controller.

I have this collection of objects in the class RoomGroup

private Set<RoomFacilityItem> facilities = new HashSet<RoomFacilityItem>();

and the class RoomFacilityItem overrides the toString()

@Override
   public String toString() {
      return String.valueOf(ID);
   }

in the JSP page I have:

<form:checkbox id="roomGroup_${roomGroup.key}_check_${roomFacilities[k].ID}"
            path="roomGroups[${roomGroup.key}].facilities"
            value="${roomFacilities[k].ID}" />

And all is appearing fine in the JSP. If there are some facilities assigned to a roomGroup, the checkboxes are correctly appearing selected in the HTML page.

When I submit the page, it seems that I do not have any effect in the RoomGroup.facilities. Whatever was there before is still there. I cannot add/remove anything using the checkboxes on the page.

Since the RoomFacilityItem objects needs to be retrieved from the DB [I have already a service for this] it seems that I am missing a piece in the puzzle. I can understand that the ID are retrieved from the list by accessing the getID() method. But the opposite part is blurry to me.

[dawez]

updated: fixed by using an binder.registerCustomEditor and a PropertyEditorSupport.