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From: Gene Wu <gene_wu@hotmail.com>
To: <dev@openjpa.apache.org>
Subject: RE: ID class: no public string or class + string constructor?
Date: Tue, 11 Sep 2007 09:12:22 +0000
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absolutely you are right. the error comes from my 2nd testing. Sorry for mi=
sleading.


Finally, I found the problem from my colleague's code. Maybe I can commit a=
 defect to JIRA.

The root cause of that issue is:

PeoplesoftSegmentEntity entity =3D _em.find(PeoplesoftSegmentEntity.class, =
12345);

As you know PeoplesoftSegmentEntity has composite key defined in Peoplesoft=
SegmentEntityId class. So when user try to find the entity, he must use the=
 instance of Id class.
But in this case, he use int value 12345. It will cause the problem. But I =
think OpenJPA didn't matched key type when the user passed in the value.


Thanks,

Gene.
> Date: Tue, 11 Sep 2007 13:25:03 +0530
> From: Sahoo@Sun.COM
> Subject: Re: ID class: no public string or class + string constructor?
> To: dev@openjpa.apache.org
>=20
> Then you probably have a classpath/packaging issue. The OpenJPA error =20
> contains a nested class name (see $ in the name):=20
> com.werner.accounting.model.PeoplesoftSegmentEntity$PeoplesoftSegmentId.
>=20
> Thanks,
> Sahoo
>=20
> Gene Wu wrote:
> > no, it's a top level class.
> >
> > I also tried static nested class. Still the same issue I met.
> >
> > Thanks,
> > Gene
> >
> >
> >  =20
> >> Date: Tue, 11 Sep 2007 12:35:27 +0530
> >> From: Sahoo@Sun.COM
> >> Subject: Re: ID class: no public string or class + string constructor?
> >> To: dev@openjpa.apache.org
> >>
> >> Is PeoplesoftSegmentId an *inner* (i.e. non-static nested) class? Make=
=20
> >> it a static nested class or a top level class and try.
> >>
> >> Thanks,
> >> Sahoo
> >>
> >> Gene Wu wrote:
> >>    =20
> >>> Here is the error stack:
> >>>
> >>> [WLServer TmsServer] javax.ejb.EJBException: nested exception is: <0|=
false|0.9.7> org.apache.openjpa.persistence.PersistenceException:
> >>> The id type "class com.werner.accounting.model.PeoplesoftSegmentEntit=
y$PeoplesoftSegmentId" specfied by persistent type "class com.wer
> >>> er.accounting.model.PeoplesoftSegmentEntity" does not have a public s=
tring or class + string constructor.
> >>> [WLServer TmsServer] <0|false|0.9.7> org.apache.openjpa.persistence.P=
ersistenceException: The id type "class com.werner.accounting.mod
> >>> l.PeoplesoftSegmentEntity$PeoplesoftSegmentId" specfied by persistent=
 type "class com.werner.accounting.model.PeoplesoftSegmentEntity"
> >>> does not have a public string or class + string constructor.
> >>> [WLServer TmsServer]    at org.apache.openjpa.kernel.BrokerImpl.newOb=
jectId(BrokerImpl.java:1120)
> >>> [WLServer TmsServer]    at org.apache.openjpa.kernel.DelegatingBroker=
.newObjectId(DelegatingBroker.java:254)
> >>> [WLServer TmsServer]    at org.apache.openjpa.persistence.EntityManag=
erImpl.find(EntityManagerImpl.java:345)
> >>> [WLServer TmsServer]    at sun.reflect.NativeMethodAccessorImpl.invok=
e0(Native Method)
> >>>
> >>>
> >>> BTW, I didn't find any IdClass test cases in OpenJPA test suit.
> >>>
> >>> Thanks
> >>>
> >>> Gene.
> >>>
> >>>
> >>>
> >>>  =20
> >>>      =20
> >>>> Date: Mon, 10 Sep 2007 22:15:36 -0700
> >>>> From: gene_wu@hotmail.com
> >>>> To: dev@openjpa.apache.org
> >>>> Subject: Re: ID class: no public string or class + string constructo=
r?
> >>>>
> >>>>
> >>>> I got the same exception.=20
> >>>>
> >>>> nested exception is: <0|false|0.9.7>
> >>>> org.apache.openjpa.persistence.PersistenceException: The id type "cl=
ass
> >>>> com.werner.accounting.model.PeoplesoftSegmentId" specfied by persist=
ent type
> >>>> "class com.werner.accounting.model.PeoplesoftSegmentEntity" does not=
 have a
> >>>> public string or class + string constructor
> >>>>
> >>>> ID Class is:
> >>>>
> >>>> public class PeoplesoftSegmentId implements Serializable {
> >>>>
> >>>> 	public String _businessUnit;
> >>>>
> >>>> 	public String _vasTourId;
> >>>>
> >>>> 	/** Creates a new instance of PeoplesoftSegmentId */
> >>>> 	public PeoplesoftSegmentId() {
> >>>>
> >>>> 	}
> >>>>
> >>>>
> >>>> 	@Override
> >>>> 	public int hashCode() {
> >>>>
> >>>> 		int hash =3D 0;
> >>>> 		hash +=3D (this._businessUnit !=3D null ? this._businessUnit.hashC=
ode() : 0);
> >>>> 		hash +=3D (this._vasTourId !=3D null ? this._vasTourId.hashCode() =
: 0);
> >>>> 		return hash;
> >>>> 	}
> >>>>
> >>>> 	@Override
> >>>> 	public boolean equals(Object object) {
> >>>>
> >>>> 		if(!(object instanceof PeoplesoftSegmentId)) {
> >>>> 			return false;
> >>>> 		}
> >>>> 		PeoplesoftSegmentId other =3D (PeoplesoftSegmentId)object;
> >>>> 		if(this._businessUnit !=3D other._businessUnit
> >>>> 			&& (this._businessUnit =3D=3D null ||
> >>>> !this._businessUnit.equals(other._businessUnit)))
> >>>> 			return false;
> >>>> 		if(this._vasTourId !=3D other._vasTourId
> >>>> 			&& (this._vasTourId =3D=3D null ||
> >>>> !this._vasTourId.equals(other._vasTourId)))
> >>>> 			return false;
> >>>> 		return true;
> >>>> 	}
> >>>>
> >>>>     public String toString() {
> >>>>         return _businessUnit + ":" + _vasTourId;
> >>>>     }
> >>>> }
> >>>>
> >>>> Entity Class is:
> >>>> @Entity
> >>>> @IdClass(PeoplesoftSegmentId.class)
> >>>> public class PeoplesoftSegmentEntity implements Serializable {
> >>>>
> >>>> 	@Id
> >>>> 	private String _businessUnit;
> >>>>
> >>>> 	@Id
> >>>> 	private String _vasTourId;
> >>>>
> >>>> ...
> >>>>
> >>>> Thanks
> >>>>
> >>>> Gene.
> >>>>
> >>>>
> >>>> Craig L Russell wrote:
> >>>>    =20
> >>>>        =20
> >>>>> Are you using @Id or @IdClass or @EmbeddedId annotations?
> >>>>>
> >>>>> I'm looking at 2.1.4, 9.1.14, and 9.1.15 and trying to figure out =
=20
> >>>>> which case you're having trouble with.
> >>>>>
> >>>>> Craig
> >>>>>
> >>>>> On Mar 26, 2007, at 5:37 PM, Craig L Russell wrote:
> >>>>>
> >>>>>      =20
> >>>>>          =20
> >>>>>> Hi Jeff,
> >>>>>>
> >>>>>> It would be useful if you could include a code fragment and the @I=
d =20
> >>>>>> annotation for your class to diagnose this.
> >>>>>>
> >>>>>> Thanks,
> >>>>>>
> >>>>>> Craig
> >>>>>>
> >>>>>> On Mar 26, 2007, at 4:35 PM, jeff wrote:
> >>>>>>
> >>>>>>        =20
> >>>>>>            =20
> >>>>>>> getting this error:
> >>>>>>>
> >>>>>>> The id type "class com.sun.portal.pom.FooId" specfied by =20
> >>>>>>> persistent type "class com.sun.portal.pom.Foo" does not have a =20
> >>>>>>> public string or class + string constructor.
> >>>>>>>
> >>>>>>> this error doesn't seem to correspond to any of the requirements =
=20
> >>>>>>> of an ID class as defined in the spec.
> >>>>>>>
> >>>>>>> my first guess is that it wants me to add an constructor that =20
> >>>>>>> takes the result of toString() and constructs the ID class based =
=20
> >>>>>>> on that, but adding a constructor that takes a string arg didn't =
=20
> >>>>>>> change the error. i don't understand what it would want for the =
=20
> >>>>>>> "class + string" constructor, so i was not sure what to try there=
.
> >>>>>>>
> >>>>>>> can someone help interpret this error?
> >>>>>>> thanks!
> >>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>> ---------------------------------
> >>>>>>> Never miss an email again!
> >>>>>>> Yahoo! Toolbar alerts you the instant new Mail arrives. Check it =
out.
> >>>>>>>          =20
> >>>>>>>              =20
> >>>>>> Craig Russell
> >>>>>> DB PMC, OpenJPA PPMC
> >>>>>> clr@apache.org http://db.apache.org/jdo
> >>>>>>
> >>>>>>
> >>>>>>        =20
> >>>>>>            =20
> >>>>> Craig Russell
> >>>>> Architect, Sun Java Enterprise System http://java.sun.com/products/=
jdo
> >>>>> 408 276-5638 mailto:Craig.Russell@sun.com
> >>>>> P.S. A good JDO? O, Gasp!
> >>>>>
> >>>>>
> >>>>> =20
> >>>>>
> >>>>>      =20
> >>>>>          =20
> >>>> --=20
> >>>> View this message in context: http://www.nabble.com/ID-class%3A-no-p=
ublic-string-or-class-%2B-string-constructor--tf3470194.html#a12608201
> >>>> Sent from the OpenJPA Developers mailing list archive at Nabble.com.
> >>>>
> >>>>    =20
> >>>>        =20
> >>> _________________________________________________________________
> >>> Capture your memories in an online journal!
> >>> http://www.reallivemoms.com?ocid=3DTXT_TAGHM&loc=3Dus
> >>>
> >>>  =20
> >>>      =20
> >
> > _________________________________________________________________
> > Capture your memories in an online journal!
> > http://www.reallivemoms.com?ocid=3DTXT_TAGHM&loc=3Dus
> >
> >  =20

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