Question

I am new to GWT and I am creating a web interface to show tabular results from 3 different queries. Therefore I have 3 different object classes defined. Tutors, Students and ClassSchedules. I have used a tabPanel widget which has the Tutors tab as the default. What I want is the user to be able to click on either tab and view the data for each respective query.

So my question is, do I have to create different services for each tab or can I achieve this by defining one service that handles the 3 objects. Any help will be appreciated.

Answer 1

You can create:

1. Service methods each returning list of concrete class.
2. Service method returning composite object consisting of 3 lists inside.
3. Service method returning map of lists – then you can easily insert more lists in result in the future.

1 requires 3 requests to server. 2&3 requires one.