Hi Eric, I'm glad you enjoyed the blog, and that it helped. I'm afraid I am not able to share the code for the stocks app, it's not quite ready for 'prime time' yet and I'm not even sure I'll be releasing it open source.
However, I would have no problem in providing a couple of 'annotated' examples in the blog: soon as I have a few minutes (I have a 'backlog' of things I want to publish about... but no time!) I will do so. In any event, all that you need to get started is in the blog + the JPA tutorial that I refer to + a good book on Spring/JPA (I have the 'In Action' series about Spring Framework (http://www.amazon.co.uk/gp/ product/1933988134? ie=UTF8&tag=cotrti-21&linkCode=as2&camp=1634&creative=19450&creativeASIN=1933988134), but a colleague has the Hibernate/JPA one (http://www.amazon.co.uk/gp/ product/1932394885? ie=UTF8&tag=cotrti-21&linkCode=as2&camp=1634&creative=19450&creativeASIN=1932394885), and he tells me it's a rather good one too). I use TopLink Essentials (Oracle) and Hibernate, which are pretty much the standard JPA implementations, and they both come with Spring (in the 'lib' directory, I think) when you download the Framework. Good luck (and please spread the word about the blog :-))), Marco Massenzio. Google is hiring! See http://www.google.com/jobs and contact me directly if you think you are good enough! On Nov 12, 3:02 am, Marco Massenzio <[email protected]> wrote: > Hiya, > > you may want to check out my blog > entry:http://codetrips.blogspot.com/2009/05/gwt-spring-and-jpa-not-really-f... > also remember to check out the comments there, as there are some > useful pointers from Yaakov. > > I will also be posting a contribution from Yaakov soon as I'm back > from the US. > > But the short answer is, trying to make GWT andJPAplay ball, it's > gonna be a tough one! > > On Nov 8, 9:41 pm, Nik <[email protected]> wrote: > > > Hi, > > > I have serious trouble setting up my GWT Project. > > I have to use Derby andJPA. > > > I installed the eclipselink plugin and tried the following: > > > Set up a new GWT Project (with GWT 1.7.1). Didn't touch anything there > > yet. > > Then converted it into aJPAProject. (Which added persistence.xml and > > some Libraries) > > Created a annotated class. And changed the standard > > GreetingServiceImpl.java which is installed with the new web project > > wizard. In it I get a EntityManagerFactory and create a Entity out of > > it. > > > That's all i want to do for now. > > > My persistence.xml looks like that: > > > <?xml version="1.0" encoding="UTF-8"?> > > <persistence version="1.0" xmlns="http://java.sun.com/xml/ns/ > > persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > > xsi:schemaLocation="http://java.sun.com/xml/ns/persistencehttp://java.sun.com/xml/ns/pers...";> > > <persistence-unit name="TestProject"> > > > > <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider> > > <class>myproject.TestClass</class> > > <properties> > > <property name="eclipselink.jdbc.driver" > > value="org.apache.derby.jdbc.ClientDriver"/> > > <property name="eclipselink.jdbc.url" > > value="jdbc:derby://localhost: > > 1527/sample;create=true"/> > > <property name="eclipselink.jdbc.user" value="app"/> > > <property name="eclipselink.jdbc.password" > > value="app"/> > > <property name="eclipselink.ddl-generation" > > value="create-tables"/> > > </properties> > > </persistence-unit> > > </persistence> > > > But when i try to run it, i get this Exception: > > > Caused by: org.datanucleus.exceptions.NucleusUserException: No > > available StoreManager found for the datastore URL key "". Please make > > sure you have all relevant plugins in the CLASSPATH (e.g datanucleus- > > rdbms?, datanucleus-db4o?), and consider setting the persistence > > property "datanucleus.storeManagerType" to the type of store you are > > using e.g rdbms, db4o > > > I've been looking over the web for a solution the last 12 hours, but > > just don't seem to find the right thing. > > > Can somebody help me? > > > Regards, > > Nik > > -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" 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-web-toolkit?hl=en.
