JPAContainer isDirty flag

Vaadin 6 / 7 / 8 Framework Data Binding
1

hi all,

is there a way to query a JPAContainer EntityItem that the contained entity is modified since last time refreshed?

i have a form over the entityitem and want to check it was modified by the user or not, so i can popup a confirm dialog.

i tried isDirty and isModified but both return false in all cases.
I also tried setWriteThrough(false), but it says “EntityProvider is not batchable”.

What is the workaround for this?

thanks
misu

2

is there wreally no solution to know that an object attached to a form has been changed by the user or not?

3

You can get rid of the “EntityProvider is not batchable” error by using JPAContainerFactory.makeBatchable(). Then try both the forms and the containers isModified() methods , I can’t remember which of those that worked…

4

JPAContainerFactory.makeBatchable() and form.isModified() together did the trick.

Thx!