Have a look at Google Gears it should be able to solve all your issues. 2009/5/25, vijay <mymail.vi...@gmail.com>: > HI All,I am working on a application using GWT and AppEngine (Java with > datastore) , got stuck in design phase. > > The application need to take input from barcode reader and will fill up > some text boxes with information corresponding to the barcode. You can > assume it to be a bookstore selling application which can fill up the book > details like book name and price from the barcode when preparing the bill. > Now my worries are: > > 1. As the information can change on server by admin the individual seller > should be in sync with server. but it would be very time taking if for every > barcode readed I send a request to server so I think we should store the > information on client side and keep it in sync with the server as the > changes are not expected to be very often. > > 2. If I keep all information on client side it is not possible to keep all > barcodes information in memory as they can be in huge numbers may be > millions, is there a effective way to keep all information on client side or > any other way instead of storing it on client side. > > 3. Also i don't want my user to loose any information if there is any > disruption in internet connectivity.so can i use something like a offline > mode which will store all information locally if internet is not connected > and as soon as connection is there it gets sync with server similar to java > web start. > > I am beginner, it would be great if you guys can tell me about any others > issues I should be aware of while developing such application with GWT and > AppEngine. > > > Thanks, > Vijay > > > >
--~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to Google-Web-Toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~----------~----~----~----~------~----~------~--~---
