latest stable cayenne 2.x version. Part of the data map containing the table
and it's corresponding data object I will try to provide. But, as far as i
know, several other tables and data objects are proper. only thing is that
while creating table I accidentally modified some columns then I added a
space at the end of columns. But, I did not use the generated data object
class. Because I thought there is no other change. I think space at the end
of columns resulted in _ (underscore)being added to property names in the
generated data object. May be that is the same reason , even in map, extra
single blank space is added to the column names.I compared the two versions
of map files ignoring blanks. today I will compare without ignoring blanks.
Then I will see.
before committing i am creating a new object with new values. Nothing more
than that. it is standard creation operation.
On Tue, Jul 28, 2009 at 11:09 PM, Andrey Razumovsky <
razumovsky.andre..mail.com> wrote:
> What version of Cayenne are you using? Can we see the code you are
> performing before committing the context? Could you show part of DataMap
> declaration? Probably you are incorrectly registering persistent objects in
> Cayenne context. I'm afraid information you are currently providing is not
> enough to help you.
>
> 2009/7/28 sridhar devatha <devatha.sridha..mail.com>
>
> > INFO QueryLogger: Created connection pool:
> > jdbc:derby://localhost:1527/empDB;create=false
> > Driver class: org.apache.derby.jdbc.ClientDriver
> > Min. connections in the pool: 1
> > Max. connections in the pool: 1
> > INFO QueryLogger: Opening connection:
> > jdbc:derby://localhost:1527/empDB;create=false
> > Login: fsau
> > Password: *******
> > INFO QueryLogger: +++ Connecting: SUCCESS.
> > INFO QueryLogger: Detected and installed adapter:
> > org.apache.cayenne.dba.derby.DerbyAdapter
> > Exception in thread "main" java.lang.NullPointerException
> > at
> >
> >
> org.apache.cayenne.CayenneDataObject.validateForSave(CayenneDataObject.java:551)
> > at
> >
> >
> org.apache.cayenne.CayenneDataObject.validateForInsert(CayenneDataObject.java:658)
> > at
> >
> >
> org.apache.cayenne.access.ObjectStoreGraphDiff.validateAndCheckNoop(ObjectStoreGraphDiff.java:100)
> > at
> >
> org.apache.cayenne.access.DataContext.flushToParent(DataContext.java:1217)
> > at
> >
> org.apache.cayenne.access.DataContext.commitChanges(DataContext.java:1138)
> > at
> > com.empApp.dao.impl.CayenneDAOImpl.commitChanges(CayenneDAOImpl.java:32)
> >
> > CayenneDAOImpl is as follows:
> > public abstract class CayenneDAOImpl {
> > private DataContext dc = null;
> > /**
> > * Returns thread-bound DataContext.
> > */
> > protected synchronized DataContext getDataContext() {
> > try {
> > if(dc == null){
> > dc = DataContext.getThreadDataContext();
> > }
> > } catch(IllegalStateException ISE){
> > dc = DataContext.createDataContext();
> > DataContext.bindThreadDataContext(dc);
> > }
> > return dc;
> > }
> >
> > synchronized protected void commitChanges(){
> > getDataContext().commitChanges();
> > }
> >
> > }
> >
> > On Tue, Jul 28, 2009 at 9:33 AM, Matt Kerr <mat..entralparksoftware.com
> > >wrote:
> >
> > > any chance you have a stack trace ?
> > > or code snippet ?
> > > project even ?
> > >
> > > very hard to offer suggestion / debug
> > > without more info :-?
> > >
> > > ok -thanks
> > > -matt
> > >
> > >
> > > On Mon, Jul 27, 2009 at 11:59 PM, sridhar
> > > devatha<devatha.sridha..mail.com> wrote:
> > > > Hi,
> > > >
> > > > I am getting null pointer exception while committing new object. I
> > > committed
> > > > several other objects of different classes using cayenne's
> > > > datacontext.commitchanges. But, i am unable to commit this object.
> > > >
> > > > --
> > > >
> > > > Yours Sincerely,
> > > > Sridhar
> > > >
> > >
> >
> >
> >
> > --
> >
> > Yours Sincerely,
> > Devatha Sridhar
> >
>
--Yours Sincerely, Devatha Sridhar
This archive was generated by hypermail 2.0.0 : Wed Jul 29 2009 - 02:39:06 EDT