Okay, I figured it out!! I was calling getPlaylists, which returns the Local
objects...naughty naughty! :)
So I implemented a getRemotePlaylists method and that seems to work great!
WOOHOO! :) Thanks for being patient with me! :)
Anyhow, since I do intend to my EJBs in a Local model, I'm not worried about the
naming convention, but I cam curious as to what the standard practice is. I
have the following in my code to cope with this, is this the right way to do
things??
public abstract Collection getPlaylists();
public abstract void setPlaylists(Collection value);
public Collection getRemotePlaylists() {
Vector rc=new Vector();
try {
Properties p=new Properties();
p.put("java.naming.factory.initial",
"org.jnp.interfaces.NamingContextFactory");
p.put("java.naming.provider.url", "jnp://localhost:1099");
p.put("java.naming.factory.url.pkgs",
"org.jboss.naming:org.jnp.interfaces");
InitialContext iniCtx = new InitialContext(p);
Context ejbCtx=(Context) iniCtx.lookup("comp/env/ejb");
PlaylistHome home=(PlaylistHome)ejbCtx.lookup("Playlist");
Iterator it=getPlaylists().iterator();
while(it.hasNext()) {
PlaylistLocal pll=(PlaylistLocal)it.next();
rc.add(home.findByPrimaryKey(pll.getPlaylistId()));
}
} catch (Exception ex) {
throw new EJBException (ex);
}
return(rc);
}
Ignore the fact that I have all the naming stuff hardcoded and such! Is this
the proper way to do things?
Thanks in advance!!
--
-bk
Quoting Brandon Knitter <[EMAIL PROTECTED]>:
> Okay, I have a 1-to-many relationship set up, and I'm thinking I did it
> right! ;-)
>
> I have patched the server to supposedly "un hide" exceptions on the server,
> but
> I'm not actually getting any stacks in my server.log output.
>
> Patch:
>
http://sourceforge.net/tracker/index.php?func=detail&aid=562036&group_id=22866&atid=376687
>
> My many-to-one relational call works great (my Playlist can ask for the
> User).
> I'm so excited! :) I may have actually figured this out!! :-D :-D
>
> The problem now is in my one-to-many call (my User asking for a Collection
> of
> Playlists), that's failing.
>
> My client call (remote) looks like:
>
> 35 User user=home.findByPrimaryKey(id);
> 36 System.out.println("name :"+user.getUsername());
> 37 System.out.println("user id :"+user.getUserId());
> 38 System.out.println("email :"+user.getEmailAddress());
> 39 Collection col=user.getPlaylists();
>
> The user.getUsername() and other methods work fine. My getPlaylists()
> fails
> with the following on the client side:
>
> name :knitterb
> user id :4
> email :[EMAIL PROTECTED]
> Exception in thread "main" java.lang.reflect.UndeclaredThrowableException
> at $Proxy1.getPlaylists(Unknown Source)
> at org.blandsite.music.user.UserClient.main(UserClient.java:39)
> Caused by: java.io.NotSerializableException:
> org.jboss.ejb.plugins.cmp.jdbc.bridge.RelationSet
> at
> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1054)
> at
> java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:278)
> at java.rmi.MarshalledObject.<init>(MarshalledObject.java:92)
> at
> org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:367)
> at sun.reflect.GeneratedMethodAccessor30.invoke(Unknown Source)
> at
>
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:324)
> at
> sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261)
> at sun.rmi.transport.Transport$1.run(Transport.java:148)
> at java.security.AccessController.doPrivileged(Native Method)
> at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
> at
> sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
> at
> sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
> at java.lang.Thread.run(Thread.java:536)
> at
>
sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:247)
> at
> sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:223)
> at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:133)
> at org.jboss.invocation.jrmp.server.JRMPInvoker_Stub.invoke(Unknown
> Source)
> at
>
org.jboss.invocation.jrmp.interfaces.JRMPInvokerProxy.invoke(JRMPInvokerProxy.java:128)
> at
> org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:108)
> at
> org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:73)
> at
> org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:76)
> at
> org.jboss.proxy.ejb.EntityInterceptor.invoke(EntityInterceptor.java:116)
> at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:76)
> ... 2 more
>
>
> I have implemented nothing special in the UserBean entity bean, except
> stated
> that the getPlaylists method is abstract, and described it as such in my
> cmr
> entries:
>
> public abstract Collection getPlaylists();
> public abstract void setPlaylists(Collection value);
>
> == ejb-jar.xml ==
> <relationships>
> <ejb-relation>
> <description>User-to-Playlist</description>
> <ejb-relation-name>User-to-Playlist</ejb-relation-name>
> <ejb-relationship-role>
> <ejb-relationship-role-name>User</ejb-relationship-role-name>
> <multiplicity>One</multiplicity>
> <relationship-role-source>
> <ejb-name>UserBean</ejb-name>
> </relationship-role-source>
> <cmr-field>
> <cmr-field-name>playlists</cmr-field-name>
> <cmr-field-type>java.util.Collection</cmr-field-type>
> </cmr-field>
> </ejb-relationship-role>
> <ejb-relationship-role>
>
> <ejb-relationship-role-name>Playlist</ejb-relationship-role-name>
> <multiplicity>Many</multiplicity>
> <relationship-role-source>
> <ejb-name>PlaylistBean</ejb-name>
> </relationship-role-source>
> <cmr-field>
> <cmr-field-name>user</cmr-field-name>
> </cmr-field>
> </ejb-relationship-role>
> </ejb-relation>
> </relationships>
> == END ejb-jar.xml ==
>
> Am I maybe missing something in my jbosscmp-jdbc.xml?
>
> == jbosscmp-jdbc.xml ==
> <relationships>
> <ejb-relation>
> <ejb-relation-name>User-to-Playlist</ejb-relation-name>
> <foreign-key-mapping/>
> <ejb-relationship-role>
>
> <ejb-relationship-role-name>User</ejb-relationship-role-name>
> <key-fields>
> <key-field>
> <field-name>userId</field-name>
> <column-name>user_id</column-name>
> </key-field>
> </key-fields>
> </ejb-relationship-role>
> <ejb-relationship-role>
>
> <ejb-relationship-role-name>Playlist</ejb-relationship-role-name
> >
> <key-fields/>
> </ejb-relationship-role>
> </ejb-relation>
> </relationships>
> == END jbosscmp-jdbc.xml ==
>
>
> Here's the section of the server.log showing this call:
>
> == server.log ==
> 2002-06-11 16:06:05,905 TRACE [org.jboss.ejb.plugins.LogInterceptor] Start
> metho
> d=getPlaylists
> 2002-06-11 16:06:05,906 TRACE [org.jboss.ejb.plugins.TxInterceptorCMT]
> Current t
> ransaction in MI is null
> 2002-06-11 16:06:05,906 TRACE [org.jboss.ejb.plugins.TxInterceptorCMT]
> TX_REQUIR
> ED for getPlaylists
> 2002-06-11 16:06:05,907 TRACE [org.jboss.ejb.plugins.TxInterceptorCMT] Thread
> ca
> me in with tx null
> 2002-06-11 16:06:05,908 TRACE [org.jboss.ejb.plugins.TxInterceptorCMT]
> Starting
> new tx TransactionImpl:XidImpl [FormatId=257, GlobalId=zoot//51,
> BranchQual=]
> 2002-06-11 16:06:05,910 TRACE [org.jboss.ejb.plugins.EntityLockInterceptor]
> Begi
> n invoke, key=4
> 2002-06-11 16:06:05,912 TRACE
> [org.jboss.ejb.plugins.EntityInstanceInterceptor]
> Begin invoke, key=4
> 2002-06-11 16:06:05,913 TRACE
> [org.jboss.ejb.plugins.EntitySynchronizationInterc
> eptor] invoke called for ctx org.jboss.ejb.EntityEnterpriseContext@df4bfc,
> tx=Tr
> ansactionImpl:XidImpl [FormatId=257, GlobalId=zoot//51, BranchQual=]
> 2002-06-11 16:06:05,913 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.JDBCStoreManager.U
> serBean] RESET PERSISTENCE CONTEXT: id=4
> 2002-06-11 16:06:05,914 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.ReadAheadCache.Use
> rBean] load data: entity=UserBean pk=4
> 2002-06-11 16:06:05,914 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.ReadAheadCache.Use
> rBean] No preload data found: entity=UserBean pk=4
> 2002-06-11 16:06:05,914 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.JDBCLoadEntityComm
> and.UserBean] Eager-load for entity: readahead=[JDBCReadAheadMetaData :
> strategy
> =on-load, pageSize=255, eagerLoadGroup=*]
> 2002-06-11 16:06:05,922 DEBUG
> [org.jboss.ejb.plugins.cmp.jdbc.JDBCLoadEntityComm
> and.UserBean] Executing SQL: SELECT uid, pwd, fn, ln, email, bitrate,
> playlink F
> ROM users WHERE (user_id=?)
> 2002-06-11 16:06:05,923 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMP2xFi
> eldBridge.UserBean.userId] Set parameter: index=1, jdbcType=INTEGER,
> value=4
> 2002-06-11 16:06:05,932 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMP2xFi
> eldBridge.UserBean.username] Get result: index=1, javaType=java.lang.String,
> Sim
> ple, value=knitterb
> 2002-06-11 16:06:05,932 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMP2xFi
> eldBridge.UserBean.password] Get result: index=2, javaType=java.lang.String,
> Sim
> ple, value=4d27eae655e7272b21c5b0a539656a8ae869d75f
> 2002-06-11 16:06:05,933 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMP2xFi
> eldBridge.UserBean.firstname] Get result: index=3, javaType=java.lang.String,
> Si
> mple, value=Brandon
> 2002-06-11 16:06:05,934 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMP2xFi
> eldBridge.UserBean.lastname] Get result: index=4, javaType=java.lang.String,
> Sim
> ple, value=Knitter
> 2002-06-11 16:06:05,934 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMP2xFi
> eldBridge.UserBean.emailAddress] Get result: index=5,
> javaType=java.lang.String,
> Simple, [EMAIL PROTECTED]
> 2002-06-11 16:06:05,935 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMP2xFi
> eldBridge.UserBean.bitrate] Get result: index=6, javaType=int, Simple,
> value=0
> 2002-06-11 16:06:05,935 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMP2xFi
> eldBridge.UserBean.playlink] Get result: index=7, javaType=int, Simple,
> value=1
> 2002-06-11 16:06:05,937 TRACE
> [org.jboss.ejb.plugins.EntitySynchronizationInterc
> eptor] register, ctx=org.jboss.ejb.EntityEnterpriseContext@df4bfc,
> tx=Transactio
> nImpl:XidImpl [FormatId=257, GlobalId=zoot//51, BranchQual=]
> 2002-06-11 16:06:05,938 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMRFiel
> dBridge.UserBean.playlists] Read ahead cahce load: cmrField=playlists pk=4
> 2002-06-11 16:06:05,939 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.ReadAheadCache.Use
> rBean] load data: entity=UserBean pk=4
> 2002-06-11 16:06:05,939 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.ReadAheadCache.Use
> rBean] No preload data found: entity=UserBean pk=4
> 2002-06-11 16:06:05,940 DEBUG
> [org.jboss.ejb.plugins.cmp.jdbc.JDBCLoadRelationCo
> mmand.UserBean] Executing SQL: SELECT playlist_id FROM playlists WHERE
> (user_id=
> ?)
> 2002-06-11 16:06:05,941 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMP2xFi
> eldBridge.PlaylistBean.userId] Set parameter: index=1, jdbcType=INTEGER,
> value=4
> 2002-06-11 16:06:05,947 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMP2xFi
> eldBridge.PlaylistBean.playlistId] Get result: index=1,
> javaType=java.lang.Integ
> er, Simple, value=1000
> 2002-06-11 16:06:05,948 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.ReadAheadCache.Pla
> ylistBean] Add preload data: entity=PlaylistBean pk=1000 field=user
> 2002-06-11 16:06:05,949 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMP2xFi
> eldBridge.PlaylistBean.playlistId] Get result: index=1,
> javaType=java.lang.Integ
> er, Simple, value=1001
> 2002-06-11 16:06:05,949 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.ReadAheadCache.Pla
> ylistBean] Add preload data: entity=PlaylistBean pk=1001 field=user
> 2002-06-11 16:06:05,949 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.ReadAheadCache.Pla
> ylistBean] Add preload data: entity=PlaylistBean pk=1001 field=user
> 2002-06-11 16:06:05,950 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.ReadAheadCache.Pla
> ylistBean] Add finder results: entity=PlaylistBean results=[1000, 1001]
> readahea
> d=[JDBCReadAheadMetaData : strategy=on-load, pageSize=1000,
> eagerLoadGroup=*]
> 2002-06-11 16:06:05,950 TRACE
> [org.jboss.ejb.plugins.EntityInstanceInterceptor]
> End invoke, key=4, ctx=org.jboss.ejb.EntityEnterpriseContext@df4bfc
> 2002-06-11 16:06:05,951 TRACE [org.jboss.ejb.plugins.EntityLockInterceptor]
> End
> invoke, key=4
> 2002-06-11 16:06:05,951 TRACE [org.jboss.ejb.plugins.TxInterceptorCMT]
> TxInterce
> ptorCMT: In finally
> 2002-06-11 16:06:05,952 TRACE [org.jboss.ejb.plugins.TxInterceptorCMT]
> TxInterce
> ptorCMT:before commit of TransactionImpl:XidImpl [FormatId=257,
> GlobalId=zoot//5
> 1, BranchQual=]
> 2002-06-11 16:06:05,953 TRACE
> [org.jboss.ejb.plugins.cmp.jdbc.JDBCStoreEntityCom
> mand.UserBean] Store command NOT executed. Entity is not dirty: pk=4
> 2002-06-11 16:06:05,970 TRACE
> [org.jboss.ejb.plugins.EntitySynchronizationInterc
> eptor] afterCompletion, clear tx for
> ctx=org.jboss.ejb.EntityEnterpriseContext@d
> f4bfc, tx=TransactionImpl:XidImpl [FormatId=257, GlobalId=zoot//51,
> BranchQual=]
> 2002-06-11 16:06:05,970 TRACE
> [org.jboss.ejb.plugins.EntitySynchronizationInterc
> eptor] afterCompletion, sent notify on TxLock for
> ctx=org.jboss.ejb.EntityEnterp
> riseContext@df4bfc
> 2002-06-11 16:06:05,971 TRACE [org.jboss.ejb.plugins.TxInterceptorCMT]
> TxInterce
> ptorCMT:after commit of TransactionImpl:XidImpl [FormatId=257,
> GlobalId=zoot//51
> , BranchQual=]
> 2002-06-11 16:06:05,971 TRACE [org.jboss.ejb.plugins.LogInterceptor] End
> method=
> getPlaylists
> == END server.log ==
>
>
> I don't see anything else, do you? Man it feels good to be close! :)
>
> --
> -bk
>
>
>
>
>
>
> _______________________________________________________________
>
> Multimillion Dollar Computer Inventory
> Live Webcast Auctions Thru Aug. 2002 -
> http://www.cowanalexander.com/calendar
>
>
>
> _______________________________________________
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>
>
_______________________________________________________________
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