thx for your reply. i guess this is a nullpointerexception (see the stack
trace) but i wonder why this happens the *second* time i try to save some
command line.. note that the first time everything goes well! anyhow ill
follow your advice and monday ill see whats wrong.
also i got another problem (end of previous msg) : about ArrayList..
although i dont use ArrayList at all castor (jdbc alright) complains :
java.sql.SQLException: Cannot convert class java.util.ArrayList to SQL type
requested
thx for your help.
>From: "Thomas Yip" <[EMAIL PROTECTED]>
>Reply-To: [EMAIL PROTECTED]
>To: [EMAIL PROTECTED]
>Subject: Re: [castor-dev] JDO : Problem with ResultsQuery.hasMore()
>Date: Fri, 27 Jul 2001 11:21:03 -0700
>
>What you got is InvocationTargetException. It means your data object throws
>a NullPointerException. It's obviously not Castor problem.
>
>You should add a try catch block in your LingneDeCommande.setQuantite
>method
>and print the stack trace.
>
>-----Original Message-----
> >From: gilles dodinet [mailto:[EMAIL PROTECTED]]
> >Sent: Friday, July 27, 2001 7:12 AM
> >To: [EMAIL PROTECTED]
> >Subject: Re: [castor-dev] JDO : Problem with ResultsQuery.hasMore()
> >
> >well i just see that scheme below is not correct : the relationship
> >ProduitPromo/Produit is bi-directionnal ([PromoProduit]---[Produit] not
> >[PromoProduit]<>---[Produit]) but no matter.. i cant find what im doing
> >wrong..
> >
> >thx..
> >
> >
> >
> >>From: "gilles dodinet" <[EMAIL PROTECTED]>
> >>Reply-To: [EMAIL PROTECTED]
> >>To: [EMAIL PROTECTED]
> >>Subject: [castor-dev] JDO : Problem with ResultsQuery.hasMore()
> >>Date: Fri, 27 Jul 2001 13:58:28 +0000
> >>
> >>hi,
> >>
> >>im trying to implement a composite-like schema using castor (without
> >>abstract classes and with n-n component/composite relationships)
> >>i got also with some troubles. just create a client is no problem. add a
> >>basic produit is no problem either. so here the problems (got two) :
> >>when i insert a command, first time no problem but the second time i got
> >>this exception :
> >>
> >>java.lang.reflect.InvocationTargetException:
>java.lang.NullPointerException
> >> at estore.LigneDeCommande.setQuantite(LigneDeCommande.java:47)
> >> at java.lang.reflect.Method.invoke(Native Method)
> >> at
>org.exolab.castor.persist.FieldMolder.setValue(FieldMolder.java:307)
> >> at
>org.exolab.castor.persist.ClassMolder.load(ClassMolder.java:672)
> >> at org.exolab.castor.persist.LockEngine.load(LockEngine.java:361)
> >> at
> >>org.exolab.castor.persist.TransactionContext.load(TransactionContext.java:
>545)
> >> at
> >>org.exolab.castor.persist.TransactionContext.load(TransactionContext.java:
>479)
> >> at
>org.exolab.castor.persist.ClassMolder.load(ClassMolder.java:742)
> >> at org.exolab.castor.persist.LockEngine.load(LockEngine.java:361)
> >> at
> >>org.exolab.castor.persist.TransactionContext.load(TransactionContext.java:
>545)
> >> at
> >>org.exolab.castor.persist.TransactionContext.load(TransactionContext.java:
>479)
> >> at
>org.exolab.castor.persist.ClassMolder.load(ClassMolder.java:742)
> >> at org.exolab.castor.persist.LockEngine.load(LockEngine.java:361)
> >> at
> >>org.exolab.castor.persist.TransactionContext.load(TransactionContext.java:
>545)
> >> at
>org.exolab.castor.persist.QueryResults.fetch(QueryResults.java:229)
> >> at
> >>org.exolab.castor.jdo.engine.OQLQueryImpl$OQLEnumeration.hasMore(OQLQueryI
>mpl.java:573)
> >> at
> >>org.exolab.castor.jdo.engine.OQLQueryImpl$OQLEnumeration.hasMore(OQLQueryI
>mpl.java:556)
> >> at estore.EstoreMain.populateCmds(EstoreMain.java:50)
> >> at estore.EstoreMain.goGoGo(EstoreMain.java:30)
> >> at estore.EstoreMain.main(EstoreMain.java:170)
> >>
> >>This exception occurs on ResultsQuery.hasMore() (OQLQuery string is a
> >>simplistic one : "select c from estore.Client c")
> >>
> >>Second problem with ProduitPromo :
> >>im not able anymore to insert although i have already succeded with it.
> >>yet
> >>i got a exception that i find not relevant at all (from jdbc driver) :
> >>
> >>java.sql.SQLException: Cannot convert class java.util.ArrayList to SQL
>type
> >>requested
> >> at
> >>org.gjt.mm.mysql.PreparedStatement.setObject(PreparedStatement.java:930)
> >> at
> >>org.gjt.mm.mysql.PreparedStatement.setObject(PreparedStatement.java:936)
> >> at
>org.exolab.castor.jdo.engine.SQLTypes.setObject(SQLTypes.java:388)
> >> at
>org.exolab.castor.jdo.engine.SQLEngine.create(SQLEngine.java:596)
> >> at
>org.exolab.castor.persist.ClassMolder.create(ClassMolder.java:866)
> >> at
>org.exolab.castor.persist.LockEngine.create(LockEngine.java:474)
> >> at
> >>org.exolab.castor.persist.TransactionContext.create(TransactionContext.jav
>a:705)
> >> at
>org.exolab.castor.jdo.engine.DatabaseImpl.create(DatabaseImpl.java:337)
> >> at estore.EstoreMain.populateProduits(EstoreMain.java:126)
> >> at estore.EstoreMain.goGoGo(EstoreMain.java:28)
> >> at estore.EstoreMain.main(EstoreMain.java:170)
> >>
> >>althought i dont use ArrayList at least but rather Vector (as in
>examples).
> >>this exception occurs on Database.create(ProduitPromotionnel pp)
> >>
> >>
> >> +-------+
> >> |Client |
> >> +-------+
> >> |1
> >> |
> >> |*
> >>+---------+ +-----------------+
> >>|Commande |1 <>--- * | LigneDeCommande |
> >>+---------+ +-----------------+
> >> |
> >> |
> >> |
> >> +---------+ *
> >> | Produit |<>--------------|
> >> +---------+ |
> >> ^ |
> >> | |
> >> ________|________ |
> >> | | |
> >> | | |
> >> +--------------+ +--------------+ ___| *
> >> | BasicProduit | | ProduitPromo |
> >> +--------------+ +--------------+
> >>
> >>
> >>I cant even imagine what is the problem... Could someone help me??
> >>thanks for all (i realize thats a very long msg).. ( i join src code and
> >>xml
> >>mapping descriptors in zipped file if needed)
> >>another precision : i use mysql 3.23, jdbc driver is from gjt - version
> >>2.0.4, jdk version is 1.3, castor version is 0.9.3
> >>
> >>
> >>Gilles Dodinet
> >>(Rhill as Well)
> >>
> >>
> >>
> >>_________________________________________________________________
> >>T�l�chargez MSN Explorer gratuitement � l'adresse
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> >><< src.zip >>
> >
> >
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