Jakob, thank you a lot for your response. I will try to fix it writing my
own RowReader. Do you think that's a correct solution?
Thank you, Mauricio Castro.
"Until they become conscious they will never rebel, and until after they
have rebelled they cannot become conscious"
--Orwell 1984
----- Original Message -----
From: "Jakob Braeuchi" <[EMAIL PROTECTED]>
To: "OJB Users List" <[EMAIL PROTECTED]>
Sent: Tuesday, June 03, 2003 3:29 PM
Subject: Re: possible bug for OQLQuery's and ojbconcreteclass
> hi mauricio,
>
> this is a problem in the current implementation. ojb adds the attribute
> ojbconcreteclass to the query when _building_ the query not
> when executing it.
>
> jakob
>
> Mauricio CASTRO wrote:
>
> >Hi,
> >
> >There is a problem when I try to use an OQLQuery that mixes tables that
have
> >the column ojbConcreteClass and tables that don't have it.
> >
> >If I extends different classes from resources and only to classes are
stored
> >in the same table and there is another class that is stored in his own
table
> >I get the error (Attribute "ojbconcreteclass" not found).
> >
> >The query might be:
> >
> >query.create("select all from "+Resource.getName());
> >
> >If you do a Query with a class that involves classes on the same table
there
> >is no problem.
> >
> >If you do a Query with a class that involves classes that are stored each
on
> >his own table there is no problem.
> >
> >How can I overcome that? Is it really a bug? I am missing something?
> >
> >Thank you.
> >Mauricio CASTRO.
> >
> >
> >[org.apache.ojb.broker.core.PersistenceBrokerImpl] DEBUG: Adding
RsIterator
> >of class [interface lms.common.LearningUnit] to ChainingIterator
> >
> >[org.apache.ojb.broker.core.PersistenceBrokerImpl] DEBUG: Creating
> >ChainingIterator for class [lms.common.LearningUnit]
> >
> >[org.apache.ojb.broker.core.PersistenceBrokerImpl] DEBUG: Adding
RsIterator
> >of class [class lms.common.LearningUnitImplementation] to
ChainingIterator
> >
> >[org.apache.ojb.broker.core.PersistenceBrokerImpl] DEBUG: Creating
> >RsIterator for class [lms.common.LearningUnitImplementation]
> >
> >[org.apache.ojb.broker.core.PersistenceBrokerImpl] DEBUG: Adding
RsIterator
> >of class [interface workflow.common.Workspace] to ChainingIterator
> >
> >[org.apache.ojb.broker.core.PersistenceBrokerImpl] DEBUG: Creating
> >ChainingIterator for class [workflow.common.Workspace]
> >
> >[org.apache.ojb.broker.core.PersistenceBrokerImpl] DEBUG: Adding
RsIterator
> >of class [class workflow.common.WorkspaceImplementation] to
ChainingIterator
> >
> >[org.apache.ojb.broker.core.PersistenceBrokerImpl] DEBUG: Creating
> >RsIterator for class [workflow.common.WorkspaceImplementation]
> >
> >java.sql.SQLException: ERROR: Attribute "ojbconcreteclass" not found
> >
> >
> > at org.postgresql.core.QueryExecutor.execute(QueryExecutor.java:131)
> >
> > at
>
>org.postgresql.jdbc1.AbstractJdbc1Connection.ExecSQL(AbstractJdbc1Connectio
n
> >.java:505)
> >
> > at
>
>org.postgresql.jdbc1.AbstractJdbc1Statement.execute(AbstractJdbc1Statement.
j
> >ava:320)
> >
> >[org.apache.ojb.broker.accesslayer.JdbcAccessImpl] ERROR: SQLException
> >during the execution of the query (for a
> >workflow.common.WorkspaceImplementation): ERROR: Attribute
> >"ojbconcreteclass" not found
> >
> >
> >ERROR: Attribute "ojbconcreteclass" not found
> >
> >
> > at
>
>org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.
j
> >ava:48)
> >
> > at
>
>org.postgresql.jdbc1.AbstractJdbc1Statement.executeQuery(AbstractJdbc1State
m
> >ent.java:153)
> >
> > at org.apache.ojb.broker.accesslayer.JdbcAccessImpl.executeQuery(Unknown
> >Source)
> >
> > at org.apache.ojb.broker.accesslayer.RsIterator.<init>(Unknown Source)
> >
> > at
> >org.apache.ojb.broker.core.RsIteratorFactoryImpl.createRsIterator(Unknown
> >Source)
> >
> > at
>
>org.apache.ojb.broker.core.PersistenceBrokerImpl.getRsIteratorFromQuery(Unk
n
> >own Source)
> >
> > at
>
>org.apache.ojb.broker.core.PersistenceBrokerImpl.getRsIteratorFromQuery(Unk
n
> >own Source)
> >
> > at
>
>org.apache.ojb.broker.core.PersistenceBrokerImpl.getRsIteratorFromQuery(Unk
n
> >own Source)
> >
> > at
>
>org.apache.ojb.broker.core.PersistenceBrokerImpl.getRsIteratorFromQuery(Unk
n
> >own Source)
> >
> > at
>
>org.apache.ojb.broker.core.PersistenceBrokerImpl.getIteratorFromQuery(Unkno
w
> >n Source)
> >
> > at
>
>org.apache.ojb.broker.core.PersistenceBrokerImpl.getCollectionByQuery(Unkno
w
> >n Source)
> >
> > at
>
>org.apache.ojb.broker.core.PersistenceBrokerImpl.getCollectionByQuery(Unkno
w
> >n Source)
> >
> > at
>
>org.apache.ojb.broker.core.PersistenceBrokerImpl.getCollectionByQuery(Unkno
w
> >n Source)
> >
> > at
>
>org.apache.ojb.broker.core.DelegatingPersistenceBroker.getCollectionByQuery
(
> >Unknown Source)
> >
> > at org.apache.ojb.odmg.oql.OQLQueryImpl.execute(Unknown Source)
> >
> > at workflow.manager.WorkflowManager.printAll(WorkflowManager.java:270)
> >
> > at workflow.manager.WorkflowManager.main(WorkflowManager.java:354)
> >
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> >
> >
>
>
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