Dear Stevko, First of all, thank you for your answer. Could you help me a little bit with fundamentals of this? I am using eclipse to create my google app engine structure. I know html, javascript, ajax. I have also learned google datastore and I m not that bad in java... I have read JSON But I'm missing some connection between them. I found about json rpc - java but I don't know how to use it in google app engine...
Kind regards, Dinos On Oct 7, 2:11 am, andy stevko <andy.ste...@gmail.com> wrote: > Hi x_maras, > > re: using email as a primary > keyhttp://code.google.com/appengine/docs/java/users/overview.html > The User object exposes a unique user ID that is guaranteed to be stable for > the lifetime of the user's account, even if the email address is changed. > You can use this value in a datastore entity key or property value. > > re: Datastore, Java, JSP, JSON, AJAX, Web Page > Writing a RESTful service that can respond to AJAX requests with JSON > payloads is very much a mainstream way to do things on app-engine. > Be careful to keep the processing response times really short. The max > response time is 30 seconds, the sweet spot is to average about 1 second > response time. > > Happy Coding, > --Stevko > > > > On Wed, Oct 6, 2010 at 4:34 PM, x_maras <dinost...@gmail.com> wrote: > > Hi, > > > I am new to GAE and I want to make a web application page on it. > > I was used to work with PHP for web applications but lately I am > > struggling to get in the thinking of a GAE web application. > > > After reading tutorials and trying to do different things I came up > > with a thinking how I want my project to be and how to make the > > communication through the different layers. I will explain you my > > thinking and I would like to tell me if am I in the right way and if I > > am not I would like someone to put back into it. > > > e.g. > > > I thought to have a user @persistent class for storing the information > > of a user, such as name, email(as a primary key), registration date > > etc... (I will use the User class for logging in, but I want to keep > > some data also for every user) > > > Then I need to create a java (dao) class that reads and inserts data > > to the datastore "tables-objects". I thought to create a different one > > for each @persistent class > > > Then Java files that execute the functions from the DAO classes and > > give information to the jsp files which through JSON give information > > to the Ajax functions in the HTML page (which I was thinking also to > > be the welcome-file in my web.xml) > > > So here comes the questions. Is something like this right? Is it going > > to work? And if not what do you propose me to do. > > > Any links or examples are very very welcome. > > > -- > > You received this message because you are subscribed to the Google Groups > > "Google App Engine for Java" group. > > To post to this group, send email to > > google-appengine-j...@googlegroups.com. > > To unsubscribe from this group, send email to > > google-appengine-java+unsubscr...@googlegroups.com<google-appengine-java%2B > > unsubscr...@googlegroups.com> > > . > > For more options, visit this group at > >http://groups.google.com/group/google-appengine-java?hl=en. -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
