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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