I am trying to create a table similar to the below figure in Vaadin 7.
Figure: https://i.stack.imgur.com/dvkO1.png
I was thinking of these 3 possibilities. Still I don't have a clarity on what I should go ahead with implementation.
1) Using Column Generator. I referred https://vaadin.com/book/vaadin7/-/page/components.table.html
2) Having a table inside a table item. But I am finding difficulty in creating that also. I am unhappy about the look and feel.
3) Searching for if there is anyway we can merge the cells to form a block.
Any help in this regard, is appreciated.