Does Google app engine supports JDBC?

Question

I have heard the Google App Engine[java] do not support JDBC and Hibernate. Is it true?
If yes then how do we access the database in Google App Engine.

Also, is there any [basic] sample application which can help me understand how to perform CRUD operations in GAE.

Answer 1

JDBC and Hibernate are not supported: http://groups.google.com/group/google-appengine-java/web/will-it-play-in-app-engine

I'm currently learning app engine too. Here's some resources and projects that have been helpful:

http://code.google.com/appengine/docs/java/overview.html

http://groups.google.com/group/google-appengine-java

Springsource Tool Suite is shipped with the Google Plugin for Eclipse (GPE): http://www.springsource.com/products/sts

A non-trivial web app example (spring mvc/gwt/jsf + JDO + spring IOC, service layer, DAOs, DTOs, test suite): http://code.google.com/p/swagswap/

Answer 2

Google uses their own type of Datastore for GAE apps. Here is there documentation for how it works: http://code.google.com/appengine/docs/java/datastore/overview.html. That page has examples of how it works.