I use XDoclet for code generation and what I normally do is separate the
local and remote interfaces into two separate home interfaces that I bind
to the JNDI. Then, if I decide to have use Local Interface methods, I can
simply retrieve the local home. The same applies to Remote Interface
methods. This has the added benefit of allowing me to use the same method
name for the local and remote since it's the Home that I'm retrieving that
indicates to JBoss whether I want local or remote method calls.
Thanks,
Chris
At 05:42 PM 06/11/2002, you wrote:
>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
> >
> >
> >
> > _______________________________________________
> > JBoss-user mailing list
> > [EMAIL PROTECTED]
> > https://lists.sourceforge.net/lists/listinfo/jboss-user
> >
> >
>
>
>
>_______________________________________________________________
>
>Multimillion Dollar Computer Inventory
>Live Webcast Auctions Thru Aug. 2002 - http://www.cowanalexander.com/calendar
>
>
>
>_______________________________________________
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_______________________________________________________________
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