im writing a new app. currently its a LAMP app, heavy on AJAX, but once this prototype is done and running i want to rewrite it as an enterprise level application. im looking at GAE as a back end (more because ive never done it before and it looks cool than anything else, free hosting doesn't hurt either) but im struggling with the data store stuff. the biggest problem i have so far is changing the data store once its deployed. here is what i understand so far, tell me where im wrong cuz im sure i am
1 - create your entity objects (this is java) 2 - when deployed, GAE will create the data store based on the entity objects in your WAR file. 3 - use them with googles app engine sql language. now, if i want to change the model update your entity objects with your new fields or whatever and deploy. now GAE should maintain the existing data and update the objects. or am i completely off base in thinking like a relational database system. is it more as a base relational system that stores blobs and i can store whatever i want in them? second, what if i have a drastic change to the data model that requires some translation sql to implement? is there some kind of screen where i can query and update the existing data model manually and translate the data into the new model or do i have to do it in the application code. -- You want it fast, cheap, or right. Pick two!! -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
