Got it to work.
Thanx
On Fri, Mar 12, 2010 at 3:19 PM, thierry LE CONNIAT <[email protected]>wrote:
> HI,
> I have try your function deleteAllMyType
> it's functions well, the differenxces are in my class of object :
>
> @PersistenceCapable(identityType = IdentityType.APPLICATION)
> public class Picture {
> private static final Logger log =
> Logger.getLogger(Picture.class.getName());
>
> @PrimaryKey
> private String fileName;
>
> ...
> Picture doesn't extend Serializable and my key is not an id...
>
>
>
> On 12 mar, 14:41, Pavel Byles <[email protected]> wrote:
> > I'm trying to delete all entities in my datastore but I receive the
> > following error:
> >
> > javax.jdo.JDOUserException: One or more instances could not be deleted...
> > NestedThrowablesStackTrace:
> > java.lang.IllegalArgumentException: id cannot be zero...
> >
> > Caused by:java.lang.IllegalArgumentException: id cannot be zero....
> >
> > For the following code:
> >
> > public void deleteAllMyType() {
> > PersistenceManager pm = PMF.get().getPersistenceManager();
> > Query query = pm.newQuery(MyType.class);
> > try {
> > query.deletePersistentAll();
> > //List<MyType> clist = (List<MyType>) query.execute();
> > //pm.deletePersistentAll(clist); // This doesn't work either
> > } finally {
> > query.closeAll();
> > pm.close();
> > }
> > }
> >
> > My entity class looks like this:
> >
> > @PersistenceCapable(identityType = IdentityType.APPLICATION)//,
> detachable =
> > "false")
> > public class MyType implements Serializable {
> > @PrimaryKey
> > @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
> > private Long id;
> >
> > @Persistent
> > private String name;
> > .
> > .
> > .
> >
> > }
> >
> > --
> > -Pav
>
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--
-Pav
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