I don't see a call to tx.begin() in the code below. Is that a typo or is it
actually missing?
On Tue, Dec 1, 2009 at 12:29 PM, bryce cottam <bcot...@gmail.com> wrote:
> thanks so much for checking into this Max.
>
> The data that I'm saving is user generated, so there's not a set
> script for it. Conceptually what I'm doing is this:
>
> Bundle bundle = new Bundle();
>
> bundle.setName("My Bundle");
> bundle.setDescription(new
> com.google.appengine.api.datastore.Text("My Description"));
> bundle.setPricingModel(PricingModel.PER_GUEST);
>
> RatePlan ratePlan = new RatePlan();
> ratePlan.setPricingModel(PricingModel.PER_GUEST);
> ratePlan.setAdultPrice(new java.math.BigDecimal("300.00"));
> ratePlan.setYouthPrice(new java.math.BigDecimal("275.00"));
>
> bundle.setRatePlan(ratePlan);
>
> List<Key> activityIds = getActivityIds();
> int i = 0;
> for (Key id : activityIds) {
> BundledActivity bundledActivity = new
> BundledActivity();
> bundledActivity.setDay(++i);
>
> ActivityFK activityFk = new ActivityFK();
> activityFk.setKey(id);
> activityFk.setName("activity " + i);
> activityFk.setPricingModel(PricingModel.PER_GUEST);
>
> bundledActivity.setActivity(activityFk);
>
> RatePlan activityRate = new RatePlan();
>
> activityRate.setPricingModel(PricingModel.PER_GUEST);
> activityRate.setAdultPrice(new
> java.math.BigDecimal("150.00"));
> activityRate.setYouthPrice(new
> java.math.BigDecimal("120.00"));
>
> bundledActivity.setRatePlan(activityRate);
> bundle.getActivities().add(bundledActivity);
> }
>
> PersistenceManager pm = PMF.createManager();
> Transaction tx = pm.currentTransaction();
>
> try {
> bundle = pm.makePersistent(bundle);
> tx.commit();
> }
> finally {
> if (tx.isActive()) {
> tx.rollback();
> }
>
> pm.close();
> }
>
> I get the Bundle saved just fine, but when it tries to save it's child
> BundledActivity instances, it breaks. However, when I do the same
> thing through the UI of my app, I get the error when attempting to
> save the Bundle (i.e. nothing gets written to the datastore, where as
> in this test code above, the parent Bundle is getting written, but
> none of it's children are getting written).
>
> Of course anytime I post my code, I kind of summarize, there are
> utilities that I use etc. But I am able to reproduce the issue
> without using any of my "helper" apis. I am completely open to just
> sending you my code (it's all proof of concept right now, so no
> disclosure issues) and you can see how all the pieces I'm using are
> fitting together.
>
> I appreciate you taking a look at this, I'd love to know if I'm doing
> something wrong.
> thanks,
> -bryce
>
>
>
> On Tue, Dec 1, 2009 at 11:03 AM, Max Ross (Google)
> <maxr+appeng...@google.com <maxr%2bappeng...@google.com>> wrote:
> > Hi Bryce,
> >
> > Thanks for posting your model objects. I'm not able to reproduce the
> > exception you're reporting, but then again I'm just guessing at how
> you're
> > populating your objects and persisting them. Here's what I did:
> >
> > Bundle b = new Bundle();
> > RatePlan rp = new RatePlan();
> > rp.setPricingModel(PricingModel.BOTH);
> > b.setRatePlan(rp);
> > b.setPricingModel(PricingModel.PER_GUEST);
> > BundledActivity ba = new BundledActivity();
> > ba.setDay(3);
> > ActivityFK activityFK = new ActivityFK();
> > activityFK.setName("harold");
> > activityFK.setPricingModel(PricingModel.PER_UNIT);
> > ba.setActivity(activityFK);
> > RatePlan anotherRatePlan = new RatePlan();
> > ba.setRatePlan(anotherRatePlan);
> > b.getActivities().add(ba);
> > beginTxn();
> > pm.makePersistent(b);
> > commitTxn();
> >
> > If you can tell me how what you're doing differs from what I'm doing I
> can
> > investigate further.
> >
> > Thanks,
> > Max
> >
> > On Mon, Nov 30, 2009 at 5:34 PM, bcottam <bcot...@gmail.com> wrote:
> >>
> >> no one has any ideas on this?
> >>
> >> I'd really like to know if this is just a bug that will be resolved
> >> (in which case I'll continue to use this data model) or if there is a
> >> flaw in my data model/JDO usage.
> >>
> >> thanks!
> >> -bryce
> >>
> >>
> >>
> >> On Nov 30, 1:21 am, bcottam <bcot...@gmail.com> wrote:
> >> > I'm trying to save some data in my app, quite similar to almost all
> >> > other data I've previously saved. However, I'm now getting this stack
> >> > trace:
> >> >
> >> > java.lang.ClassCastException: oid is not instanceof
> >> > javax.jdo.identity.ObjectIdentity
> >> > at
> >> > com.resmark.client.model.RatePlan.jdoCopyKeyFieldsFromObjectId
> >> > (RatePlan.java)
> >> > at
> >> >
> >> >
> org.datanucleus.store.mapped.mapping.PersistenceCapableMapping.setObjectAsValue
> >> > (PersistenceCapableMapping.java:657)
> >> > at
> >> >
> org.datanucleus.store.mapped.mapping.PersistenceCapableMapping.setObject
> >> > (PersistenceCapableMapping.java:364)
> >> > at
> org.datanucleus.store.appengine.DatastoreRelationFieldManager
> >> > $1.setObjectViaMapping(DatastoreRelationFieldManager.java:132)
> >> > at
> org.datanucleus.store.appengine.DatastoreRelationFieldManager
> >> > $1.apply(DatastoreRelationFieldManager.java:108)
> >> > at
> >> >
> >> >
> org.datanucleus.store.appengine.DatastoreRelationFieldManager.storeRelations
> >> > (DatastoreRelationFieldManager.java:80)
> >> > at
> >> > org.datanucleus.store.appengine.DatastoreFieldManager.storeRelations
> >> > (DatastoreFieldManager.java:795)
> >> > at
> >> >
> >> >
> org.datanucleus.store.appengine.DatastorePersistenceHandler.insertPostProcess
> >> > (DatastorePersistenceHandler.java:288)
> >> > at
> >> >
> >> >
> org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObjects
> >> > (DatastorePersistenceHandler.java:241)
> >> > at
> >> >
> org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObject
> >> > (DatastorePersistenceHandler.java:225)
> >> > at
> >> > org.datanucleus.state.JDOStateManagerImpl.internalMakePersistent
> >> > (JDOStateManagerImpl.java:3185)
> >> > at org.datanucleus.state.JDOStateManagerImpl.makePersistent
> >> > (JDOStateManagerImpl.java:3161)
> >> > at org.datanucleus.ObjectManagerImpl.persistObjectInternal
> >> > (ObjectManagerImpl.java:1298)
> >> > at org.datanucleus.ObjectManagerImpl.persistObject
> >> > (ObjectManagerImpl.java:1175)
> >> > at org.datanucleus.jdo.JDOPersistenceManager.jdoMakePersistent
> >> > (JDOPersistenceManager.java:669)
> >> > at org.datanucleus.jdo.JDOPersistenceManager.makePersistent
> >> > (JDOPersistenceManager.java:694)
> >> > at com.resmark.server.model.service.BaseDataService.create
> >> > (BaseDataService.java:227)
> >> > at com.resmark.server.SetupServiceImpl.updateOrCreate
> >> > (SetupServiceImpl.java:120)
> >> > at com.resmark.server.SetupServiceImpl.updateOrCreateBundle
> >> > (SetupServiceImpl.java:67)
> >> > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> >> > at sun.reflect.NativeMethodAccessorImpl.invoke
> >> > (NativeMethodAccessorImpl.java:39)
> >> > at sun.reflect.DelegatingMethodAccessorImpl.invoke
> >> > (DelegatingMethodAccessorImpl.java:25)
> >> > at java.lang.reflect.Method.invoke(Method.java:597)
> >> > at
> >> > com.google.appengine.tools.development.agent.runtime.Runtime.invoke
> >> > (Runtime.java:100)
> >> > at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse
> >> > (RPC.java:527)
> >> > at
> >> > com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall
> >> > (RemoteServiceServlet.java:166)
> >> > at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost
> >> > (RemoteServiceServlet.java:86)
> >> > at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:713)
> >> > at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
> >> > at
> >> > org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
> >> > 487)
> >> > at
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
> >> > (ServletHandler.java:1093)
> >> > at
> >> > com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter
> >> > (TransactionCleanupFilter.java:43)
> >> > at
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
> >> > (ServletHandler.java:1084)
> >> > at
> >> > com.google.appengine.tools.development.StaticFileFilter.doFilter
> >> > (StaticFileFilter.java:121)
> >> > at
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
> >> > (ServletHandler.java:1084)
> >> > at org.mortbay.jetty.servlet.ServletHandler.handle
> >> > (ServletHandler.java:360)
> >> > at org.mortbay.jetty.security.SecurityHandler.handle
> >> > (SecurityHandler.java:216)
> >> > at org.mortbay.jetty.servlet.SessionHandler.handle
> >> > (SessionHandler.java:181)
> >> > at org.mortbay.jetty.handler.ContextHandler.handle
> >> > (ContextHandler.java:712)
> >> > at
> >> > org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
> >> > 405)
> >> > at
> >> > com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle
> >> > (DevAppEngineWebAppContext.java:54)
> >> > at org.mortbay.jetty.handler.HandlerWrapper.handle
> >> > (HandlerWrapper.java:139)
> >> > at
> com.google.appengine.tools.development.JettyContainerService
> >> > $ApiProxyHandler.handle(JettyContainerService.java:342)
> >> > at org.mortbay.jetty.handler.HandlerWrapper.handle
> >> > (HandlerWrapper.java:139)
> >> > at org.mortbay.jetty.Server.handle(Server.java:313)
> >> > at
> >> > org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
> >> > 506)
> >> > at org.mortbay.jetty.HttpConnection$RequestHandler.content
> >> > (HttpConnection.java:844)
> >> > at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:644)
> >> > at
> >> > org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
> >> > at
> >> > org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381)
> >> > at org.mortbay.io.nio.SelectChannelEndPoint.run
> >> > (SelectChannelEndPoint.java:396)
> >> > at org.mortbay.thread.BoundedThreadPool$PoolThread.run
> >> > (BoundedThreadPool.java:442)
> >> >
> >> > I've seen this come up when a data model has a many-to-one
> >> > relationship and a one-to-one relationship with the same data type,
> >> > but I'm not doing that.
> >> >
> >> > here is the code referenced:
> >> > @PersistenceCapable(identityType=IdentityType.APPLICATION)
> >> > public class Bundle implements Serializable {
> >> > @PrimaryKey
> >> > @Persistent(valueStrategy=IdGeneratorStrategy.IDENTITY)
> >> > private Key id;
> >> >
> >> > @Persistent
> >> > private String name;
> >> > @Persistent
> >> > private Text description;
> >> >
> >> > @Persistent
> >> > private RatePlan ratePlan;
> >> > @Persistent
> >> > private PricingModel pricingModel;
> >> >
> >> > @Persistent
> >> > private List<BundledActivity> activities = new
> >> > ArrayList<BundledActivity>();
> >> > ....
> >> >
> >> > }
> >> >
> >> > @PersistenceCapable(identityType=IdentityType.APPLICATION)
> >> > public class RatePlan implements Serializable {
> >> >
> >> > @PrimaryKey
> >> > @Persistent(valueStrategy=IdGeneratorStrategy.IDENTITY)
> >> > public Key id;
> >> >
> >> > @Persistent
> >> > private String name;
> >> >
> >> > @Persistent
> >> > private BigDecimal adultPrice;
> >> > @Persistent
> >> > private BigDecimal youthPrice;
> >> > @Persistent
> >> > private BigDecimal unitPrice;
> >> >
> >> > @Persistent
> >> > private PricingModel pricingModel;
> >> >
> >> > @Persistent
> >> > private boolean active = true;
> >> > .....
> >> >
> >> > }
> >> >
> >> > @PersistenceCapable(identityType=IdentityType.APPLICATION)
> >> > public class BundledActivity implements Serializable {
> >> >
> >> > @PrimaryKey
> >> > @Persistent(valueStrategy=IdGeneratorStrategy.IDENTITY)
> >> > private Key id;
> >> >
> >> > @Embedded
> >> > @Persistent
> >> > private ActivityFK activity;
> >> > @Persistent
> >> > private RatePlan ratePlan;
> >> > @Persistent
> >> > private int day;
> >> >
> >> > @Persistent
> >> > @Extension(vendorName="datanucleus", key="gae.parent-pk",
> >> > value="true")
> >> > private Key bundleId;
> >> > .....
> >> >
> >> > }
> >> >
> >> > @PersistenceCapable(identityType=IdentityType.NONDURABLE)
> >> > public class ActivityFK implements Serializable {
> >> >
> >> > @Persistent
> >> > private Key key;
> >> > @Persistent
> >> > private String name;
> >> > @Persistent
> >> > private PricingModel pricingModel;
> >> > ....
> >> >
> >> > }
> >> >
> >> > public enum PricingModel implements Serializable {
> >> > PER_GUEST, PER_UNIT, BOTH;
> >> >
> >> > }
> >> >
> >> > perhaps there's something I'm missing about the model. I've done
> >> > almost the same thing in most of my other data model objects and their
> >> > relationships. I think about the only thing that's different here is
> >> > the @Extension annotation, but that's not where the error is
> >> > happening. Any suggestions would be very welcome.
> >> >
> >> > Thanks!
> >> > -bryce
> >>
> >> --
> >>
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