How to bind a Map to Fields in a FieldGroup?

Vaadin 6 / 7 / 8 Framework Data Binding
1

I have a bean that contains a Map. I use this to create a BeanItem and then a FieldGroup from that. How can I bind the entries of the Map to individual Fields so that on a commit in the FieldGroup the values from the fields are written back to the entries in the map?

2

Hi,

I think I had excactly what you need in my Vaadin 6 era
SmartFields
 add-on (that was never publishded to the Directory). I just last/this week recycled some of its collection related field ideas to add-on called Viritin, but I haven’t worked with the MapField yet.

I created an issue about this to the Viritin github project. Want to try to upgrade the field from SmartFields to Viritin?

cheers,
matti

3

Thank you for your help. Unfortunately it seems my use case is a bit different. I don’t want to show all the values in a Table but rather selected ones in TextFields. My solution now is a custom implementation of Property that is backed by the Map. On the BeanItem I add this custom Property for all the necessary values and afterwards bind those to the TextFields.

4

Ah, ok, so you are using kind of a “nested string property”, but instead of being inside another object it is an entry in map? If you came up with a reusable solution, please share it in the Directory.

cheers,
matti