right, we're certainly on the same page on what should/shouldn't be
persisted. I have that override on every single class that subclasses
BaseBean. I would never expect JDO/datanucleus or any other framework
for that matter to "magically" persist a field in a non-peristable
super class. That's why I override it in every subclass. Again, I
had it in there as a place holder until GAE supported persisting super
class fields in subclasses. in the release notes of 1.2.8 of GAE, it
indicates such functionality is available, so I removed my overrides,
made BaseBean persistable and started testing. Once I saw the error
in my original message, I reverted everything back to a state where
BaseBean is not persistable, and in fact, it is abstract and I removed
the implementation of the "id" field and property getter/setters and
migrated that all down to each subclassing bean. So, given my code
above, no one should be requiring BaseBean to be persistable or even
enhanced. Good tip on the point that a plugin may be causing this,
here is the stack trace I posted earlier:
Persistent class "Class com.resmark.client.model.BaseBean does not
seem to have been enhanced. You may want to rerun the enhancer and
check for errors in the output." has no table in the database, but the
operation requires it. Please check the specification of the MetaData
for this class.
at
org.datanucleus.jdo.NucleusJDOHelper.getJDOExceptionForNucleusException(NucleusJDOHelper.java:375)
at
org.datanucleus.jdo.JDOPersistenceManager.jdoMakePersistent(JDOPersistenceManager.java:674)
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:123)
at
com.resmark.server.SetupServiceImpl.updateOrCreateActivity(SetupServiceImpl.java:60)
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$CachedChain.doFilter(ServletHandler.java:1084)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
at
com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:70)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
at
com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:352)
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)
and I guess I glanced over it before, but here's the nested stack trace:
Persistent class "Class com.resmark.client.model.BaseBean does not
seem to have been enhanced. You may want to rerun the enhancer and
check for errors in the output." has no table in the database, but the
operation requires it. Please check the specification of the MetaData
for this class.
org.datanucleus.store.exceptions.NoTableManagedException: Persistent
class "Class com.resmark.client.model.BaseBean does not seem to have
been enhanced. You may want to rerun the enhancer and check for
errors in the output." has no table in the database, but the operation
requires it. Please check the specification of the MetaData for this
class.
at
org.datanucleus.store.appengine.DatastoreManager.getDatastoreClass(DatastoreManager.java:644)
at
org.datanucleus.store.appengine.DatastoreManager.getDatastoreClass(DatastoreManager.java:82)
at
org.datanucleus.store.appengine.DatastoreTable.initializeNonPK(DatastoreTable.java:428)
at
org.datanucleus.store.appengine.DatastoreTable.buildMapping(DatastoreTable.java:285)
at
org.datanucleus.store.appengine.DatastoreManager.buildStoreData(DatastoreManager.java:405)
at
org.datanucleus.store.appengine.DatastoreManager.newStoreData(DatastoreManager.java:363)
at
org.datanucleus.store.AbstractStoreManager.addClasses(AbstractStoreManager.java:788)
at
org.datanucleus.store.AbstractStoreManager.addClass(AbstractStoreManager.java:759)
at
org.datanucleus.store.mapped.MappedStoreManager.getDatastoreClass(MappedStoreManager.java:358)
at
org.datanucleus.store.appengine.DatastoreManager.getDatastoreClass(DatastoreManager.java:631)
at
org.datanucleus.store.appengine.DatastoreFieldManager.buildMappingConsumer(DatastoreFieldManager.java:1008)
at
org.datanucleus.store.appengine.DatastoreFieldManager.buildMappingConsumer(DatastoreFieldManager.java:998)
at
org.datanucleus.store.appengine.DatastoreFieldManager.<init>(DatastoreFieldManager.java:133)
at
org.datanucleus.store.appengine.DatastoreFieldManager.<init>(DatastoreFieldManager.java:167)
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.insertPreProcess(DatastorePersistenceHandler.java:316)
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObjects(DatastorePersistenceHandler.java:236)
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:123)
at
com.resmark.server.SetupServiceImpl.updateOrCreateActivity(SetupServiceImpl.java:60)
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$CachedChain.doFilter(ServletHandler.java:1084)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
at
com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:70)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
at
com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:352)
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)
so, this does indeed look like problem with the
org.datanucleus.store.appengine.DatastoreManager in the
getDatastoreClass method. Hopefully someone on that team sees this
post.
thanks so much for your input!
-bryce
On Mon, Dec 7, 2009 at 2:13 AM, datanucleus <andy_jeffer...@yahoo.com> wrote:
> Let's be clear here, if you have
> public class Base
> {
> private long id;
>
> public long getId()
> {
> return id;
> }
>
> public void setId(long id)
> {
> this.id = id;
> }
> }
> @PersistenceCapable
> public class Sub extends Base
> {
> �...@primarykey
> �...@persistent
> public long getId()
> {
> return super.getId();
> }
> public void setId(long id)
> {
> super.setId(id);
> }
> }
>
> and persist a Sub, then ***DataNucleus*** will *not* insist that the
> superclass is persistable. This is based on all DN datastore plugins
> except GAE/J. If GAE/J does cause this then it is a bug in that plugin
> and raise a bug on them, with stack trace and exception etc etc.
>
> Also to be clear, the JDO and JPA specs do *not* allow magical
> persistence of a field of a non-persistable superclass, unless you do
> an override in a subclass like what you did there (to make it a
> persistable property). You will *always* need that override.
>
> --
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