For now for testing I removed most stuff and used another test servlet
instead
This is the servlet:
package com.wander.wave.zombify;
import java.io.IOException;
import javax.jdo.*;
import javax.servlet.http.*;
public class TestServlet extends HttpServlet{
public void doGet(HttpServletRequest req,HttpServletResponse resp)
throws IOException{
PersistenceManager manager =
JDOHelper.getPersistenceManagerFactory
("transactions-optional").getPersistenceManager();
Area area = new Area("Test");
manager.makePersistent(area);
}
}
And this is Area:
package com.wander.wave.zombify;
import javax.jdo.annotations.*;
import com.google.appengine.api.datastore.Key;
@PersistenceCapable(identityType=IdentityType.APPLICATION)
public class Area{
@PrimaryKey
@Persistent(valueStrategy=IdGeneratorStrategy.IDENTITY)
private Key key;
@Persistent
private String name;
public Area(String name){
this.name = name;
}
}
When I visit the page thats mapped to the servlet, I get the same
error
Uncaught exception from servlet
java.lang.NoClassDefFoundError: javax/jdo/metadata/TypeMetadata
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at
com.google.apphosting.runtime.security.shared.intercept.java.lang.Class_.loadClassOrStub
(Class_.java:261)
at
com.google.apphosting.runtime.security.shared.intercept.java.lang.Class_.access
$100(Class_.java:37)
at
com.google.apphosting.runtime.security.shared.intercept.java.lang.Class_
$3.run(Class_.java:131)
at
com.google.apphosting.runtime.security.shared.intercept.java.lang.Class_
$3.run(Class_.java:116)
at java.security.AccessController.doPrivileged(Native Method)
at
com.google.apphosting.runtime.security.shared.intercept.java.lang.Class_.forName
(Class_.java:116)
at javax.jdo.JDOHelper$18.run(JDOHelper.java:2009)
at javax.jdo.JDOHelper$18.run(JDOHelper.java:2007)
at
com.google.apphosting.runtime.security.shared.intercept.java.security.AccessController_.doPrivileged
(AccessController_.java:45)
at javax.jdo.JDOHelper.forName(JDOHelper.java:2006)
at
javax.jdo.JDOHelper.invokeGetPersistenceManagerFactoryOnImplementation
(JDOHelper.java:1155)
at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:
803)
at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:
1086)
at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:
914)
at com.wander.wave.zombify.TestServlet.doGet(TestServlet.java:10)//<--
where i get the persistence manager
//etc
I have the following JARs in war/WEB-INF/lib:
appengine-api-1.0-sdk-1.2.2.jar
datanucleus-appengine-1.0.2.final.jar
datanucleus-core-2.0.0.m1.jar
datanucleus-jpa-2.0.0.m1.jar
geronimo-jpa_3.0_spec-1.1.1.jar
geronimo-jta_1.1_spec-1.1.1.jar
jdo2-api-2.3-ea.jar
json.jar
jsonrpc.jar
wave-robot-api.jar
Thank you very much for your help
On Aug 28, 8:20 pm, "Jason (Google)" <[email protected]> wrote:
> Can you list the JARs in your war/WEB-INF/lib directory?
> Also, can you explain how you're dealing with the AreaType field? Can you
> either remove this field entirely (for now) or make it a @PersistenceCapable
> class rather than an enum for testing purposes?
>
> Thanks,
> - Jason
>
>
>
> On Thu, Aug 27, 2009 at 1:45 PM, Wander <[email protected]> wrote:
>
> > I just installed it here about a week ago, so I think I have the
> > latest versions
> > Im using the eclipse plugin, I use eclipse 3.5 (Galileo) on Ubuntu
> > 9.04 (Jaunty)
> > The appengine version is: 1.2.2.v200907291526
>
> > Item is a class similar to Area, same annotations, similar fields,
> > AreaType is an enum
> > Area and Item have @PersistenceCapable
> > (identityType=IdentityType.APPLICATION), AreaType has
> > @PersistenceAware
> > I found out that the endless loop only happens when I save a class/
> > enum that has the @PersistenceAware annotation
> > However, if I just switch to another class that doesn't have
> > @PersistenceAware the loop ends, so I guess it's not a big problem
>
> > To prevent the one-to-many bug between objects of the same type, in
> > Area I replaced ArrayList<Area> borderAreas, by ArrayList<Keys>
> > borderAreaKeys
>
> > I'm not getting the "has no table in the database" warning anymore,
> > now I get this:
>
> > Nested in javax.servlet.ServletException: init:
> > java.lang.NoClassDefFoundError: javax/jdo/metadata/TypeMetadata
> > at java.lang.Class.forName0(Native Method)
> > at java.lang.Class.forName(Unknown Source)
> > at
>
> > com.google.apphosting.runtime.security.shared.intercept.java.lang.Class_.lo
> > adClassOrStub
> > (Class_.java:261)
> > at
>
> > com.google.apphosting.runtime.security.shared.intercept.java.lang.Class_.ac
> > cess
> > $100(Class_.java:37)
> > at
> > com.google.apphosting.runtime.security.shared.intercept.java.lang.Class_
> > $3.run(Class_.java:131)
> > at
> > com.google.apphosting.runtime.security.shared.intercept.java.lang.Class_
> > $3.run(Class_.java:116)
> > at java.security.AccessController.doPrivileged(Native Method)
> > at
>
> > com.google.apphosting.runtime.security.shared.intercept.java.lang.Class_.fo
> > rName
> > (Class_.java:116)
> > at javax.jdo.JDOHelper$18.run(JDOHelper.java:2009)
> > at javax.jdo.JDOHelper$18.run(JDOHelper.java:2007)
> > at
>
> > com.google.apphosting.runtime.security.shared.intercept.java.security.Acces
> > sController_.doPrivileged
> > (AccessController_.java:45)
> > at javax.jdo.JDOHelper.forName(JDOHelper.java:2006)
> > at
> > javax.jdo.JDOHelper.invokeGetPersistenceManagerFactoryOnImplementation
> > (JDOHelper.java:1155)
> > at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:
> > 803)
> > at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:
> > 1086)
> > at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:
> > 914)
> > at com.wander.wave.zombify.PMF.<clinit>(PMF.java:7)
> > at
> > com.wander.wave.zombify.ZombifyServlet.<init>(ZombifyServlet.java:
> > 11) //<--- this is where I use, manager = PMF.get
> > ().getPersistenceManager();
> > <!--etc-->
>
> > Its still not inserting anything in the database, when I go to Data
> > Viewer it says "No Data Yet."
> > Any idea what can cause this?
>
> > On Aug 27, 8:48 pm, "Jason (Google)" <[email protected]> wrote:
> > > Are you using the Eclipse plugin? If so, what platform are you running?
> > What
> > > version of the SDK are you using?
> > > As far as the first issue goes, are AreaType and Item also persistent
> > > classes? Also, there appears to be a bug with owned one-to-many
> > > relationships between objects of the same type, so if you're able to
> > resolve
> > > the initial error but you don't see any entities persisted, this is the
> > > reason.
>
> > > - Jason
>
> > > On Wed, Aug 26, 2009 at 1:10 PM, Wander <[email protected]> wrote:
>
> > > > I still haven't solved the problem above, a new one turned up however.
> > > > Datanucleus keeps looping on forever as soon as I edit and save a
> > > > class. Could this be related, and how can I solve it?
>
> > > > Thanks
>
> > > > On Aug 26, 5:09 am, Wander <[email protected]> wrote:
> > > > > Hi all
>
> > > > > I'm trying to use the datastore in app engine (for the first time),
> > > > > but I get the following warning:
> > > > > javax.jdo.JDOUserException: Persistent class
> > "com.wander.etc.etc.Area"
> > > > > has no table in the database, but the operation requires it. Please
> > > > > check the specification of the MetaData for this class.
>
> > > > > This is the piece of code:
> > > > > PersistenceManager manager = PMF.get().getPersistenceManager();
> > > > > Area area = new Area("something",AreaType.OUTSIDE);
> > > > > manager.makePersistent(area);
>
> > > > > And this is a part of the Area class:
> > > > > @PersistenceCapable(identityType=IdentityType.APPLICATION)
> > > > > public class Area{
> > > > > @PrimaryKey
> > > > > @Persistent(valueStrategy=IdGeneratorStrategy.IDENTITY)
> > > > > private Key key;
> > > > > @Persistent
> > > > > private String name;
> > > > > @Persistent
> > > > > private AreaType areaType;
> > > > > @Persistent(mappedBy="key")
> > > > > private ArrayList<Area> borderAreas;
> > > > > @Persistent(mappedBy="key")
> > > > > private ArrayList<Item> items;
> > > > > //etc
>
> > > > > I've searched at google for the problem, but got very few results
> > > > > One of them was about adding some class information to jdoconfig.xml,
> > > > > but at another page I read that this wouldnt be needed, because it's
> > > > > schemaless
>
> > > > > I'm using eclipse, got all needed plugins installed (as far as I can
> > > > > see), and apart from the datastore everything seems to be working
> > fine
> > > > > , I don't get any errors in the console when deploying
>
> > > > > Could anyone tell me what I'm doing wrong?
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