| [CDO] OCL Queries [message #650941] |
Thu, 27 January 2011 08:53  |
Eclipse User |
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Originally posted by: info.dav85.de
Hello everyone,
i've got some problems with the ocl queries. I want to do a query like this:
CDOQuery oclQuery = cdoTransaction.createQuery("ocl",
"StringValue.allInstances()", TypesPackage.eINSTANCE.getStringValue());
StringValue is a class in my EMF model. The Server print the following
exception:
!MESSAGE Evaluation failed with an exception: Object OID2211 not found
in branch 0 at *
!STACK 0
org.eclipse.emf.cdo.util.ObjectNotFoundException: Object OID2211 not
found in branch 0 at *
at
org.eclipse.emf.internal.cdo.view.AbstractCDOView.createObje ct(AbstractCDOView.java:808)
at
org.eclipse.emf.internal.cdo.view.AbstractCDOView.getObject( AbstractCDOView.java:712)
at
org.eclipse.emf.internal.cdo.view.AbstractCDOView.getObject( AbstractCDOView.java:664)
at
org.eclipse.emf.internal.cdo.view.AbstractCDOView.getObject( AbstractCDOView.java:1)
....
If I query other classes in my model it works fine. A simple sql query
statement like "Select * From StringValue" works also fine.
Thanks!
David
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| Re: [CDO] OCL Queries [message #650952 is a reply to message #650941] |
Thu, 27 January 2011 09:40  |
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Hi David,
Are you sure that your repository does not contain any stale references (references to objects that have been deleted)?
In CDO 4.0 you can use the new repository property ensureReferentialIntegrity="true" to prevent this scenario. Of course this will consume some additional CPU cycles during commits.
Cheers
/Eike
----
http://www.esc-net.de
http://thegordian.blogspot.com
http://twitter.com/eikestepper
Am 27.01.2011 09:53, schrieb David Hein:
> Hello everyone,
>
> i've got some problems with the ocl queries. I want to do a query like this:
>
> CDOQuery oclQuery = cdoTransaction.createQuery("ocl", "StringValue.allInstances()", TypesPackage.eINSTANCE.getStringValue());
>
> StringValue is a class in my EMF model. The Server print the following exception:
>
> !MESSAGE Evaluation failed with an exception: Object OID2211 not found in branch 0 at *
> !STACK 0
> org.eclipse.emf.cdo.util.ObjectNotFoundException: Object OID2211 not found in branch 0 at *
> at org.eclipse.emf.internal.cdo.view.AbstractCDOView.createObje ct(AbstractCDOView.java:808)
> at org.eclipse.emf.internal.cdo.view.AbstractCDOView.getObject( AbstractCDOView.java:712)
> at org.eclipse.emf.internal.cdo.view.AbstractCDOView.getObject( AbstractCDOView.java:664)
> at org.eclipse.emf.internal.cdo.view.AbstractCDOView.getObject( AbstractCDOView.java:1)
> ...
>
> If I query other classes in my model it works fine. A simple sql query statement like "Select * From StringValue" works also fine.
>
> Thanks!
> David
Cheers
/Eike
----
http://www.esc-net.de
http://thegordian.blogspot.com
http://twitter.com/eikestepper
|
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| Re: [CDO] OCL Queries [message #650957 is a reply to message #650952] |
Thu, 27 January 2011 10:06 |
| Eclipse User |
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|
Originally posted by: info.dav85.de
thank you very much! it works! :)
Am 27/01/2011 10:40, schrieb Eike Stepper:
> Hi David,
>
> Are you sure that your repository does not contain any stale references
> (references to objects that have been deleted)?
>
> In CDO 4.0 you can use the new repository property
> ensureReferentialIntegrity="true" to prevent this scenario. Of course
> this will consume some additional CPU cycles during commits.
>
> Cheers
> /Eike
>
> ----
> http://www.esc-net.de
> http://thegordian.blogspot.com
> http://twitter.com/eikestepper
>
>
>
> Am 27.01.2011 09:53, schrieb David Hein:
>> Hello everyone,
>>
>> i've got some problems with the ocl queries. I want to do a query like
>> this:
>>
>> CDOQuery oclQuery = cdoTransaction.createQuery("ocl",
>> "StringValue.allInstances()", TypesPackage.eINSTANCE.getStringValue());
>>
>> StringValue is a class in my EMF model. The Server print the following
>> exception:
>>
>> !MESSAGE Evaluation failed with an exception: Object OID2211 not found
>> in branch 0 at *
>> !STACK 0
>> org.eclipse.emf.cdo.util.ObjectNotFoundException: Object OID2211 not
>> found in branch 0 at *
>> at
>> org.eclipse.emf.internal.cdo.view.AbstractCDOView.createObje ct(AbstractCDOView.java:808)
>>
>> at
>> org.eclipse.emf.internal.cdo.view.AbstractCDOView.getObject( AbstractCDOView.java:712)
>>
>> at
>> org.eclipse.emf.internal.cdo.view.AbstractCDOView.getObject( AbstractCDOView.java:664)
>>
>> at
>> org.eclipse.emf.internal.cdo.view.AbstractCDOView.getObject( AbstractCDOView.java:1)
>>
>> ...
>>
>> If I query other classes in my model it works fine. A simple sql query
>> statement like "Select * From StringValue" works also fine.
>>
>> Thanks!
>> David
|
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| Re: [CDO] OCL Queries [message #650975 is a reply to message #650957] |
Thu, 27 January 2011 10:40 |
| Eclipse User |
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|
Originally posted by: info.dav85.de
In the standard way without modifying data it works fine. But then I do
some modifications and the same problem come again.
In the database table i found some entries like this:
CDO_ID CDO_VERSION CDO_BRANCH CDO_REVISED ...
2657 -2 0 0
2657 1 0 1296123470213
2658 -2 0 0
2658 1 0 1296123470213
2659 -2 0 0
2659 1 0 1296123470213
Is it possible that i forget do update or delete some references in my
model?
Thanks.
Am 27/01/2011 11:06, schrieb David Hein:
> thank you very much! it works! :)
>
> Am 27/01/2011 10:40, schrieb Eike Stepper:
>> Hi David,
>>
>> Are you sure that your repository does not contain any stale references
>> (references to objects that have been deleted)?
>>
>> In CDO 4.0 you can use the new repository property
>> ensureReferentialIntegrity="true" to prevent this scenario. Of course
>> this will consume some additional CPU cycles during commits.
>>
>> Cheers
>> /Eike
>>
>> ----
>> http://www.esc-net.de
>> http://thegordian.blogspot.com
>> http://twitter.com/eikestepper
>>
>>
>>
>> Am 27.01.2011 09:53, schrieb David Hein:
>>> Hello everyone,
>>>
>>> i've got some problems with the ocl queries. I want to do a query like
>>> this:
>>>
>>> CDOQuery oclQuery = cdoTransaction.createQuery("ocl",
>>> "StringValue.allInstances()", TypesPackage.eINSTANCE.getStringValue());
>>>
>>> StringValue is a class in my EMF model. The Server print the following
>>> exception:
>>>
>>> !MESSAGE Evaluation failed with an exception: Object OID2211 not found
>>> in branch 0 at *
>>> !STACK 0
>>> org.eclipse.emf.cdo.util.ObjectNotFoundException: Object OID2211 not
>>> found in branch 0 at *
>>> at
>>> org.eclipse.emf.internal.cdo.view.AbstractCDOView.createObje ct(AbstractCDOView.java:808)
>>>
>>>
>>> at
>>> org.eclipse.emf.internal.cdo.view.AbstractCDOView.getObject( AbstractCDOView.java:712)
>>>
>>>
>>> at
>>> org.eclipse.emf.internal.cdo.view.AbstractCDOView.getObject( AbstractCDOView.java:664)
>>>
>>>
>>> at
>>> org.eclipse.emf.internal.cdo.view.AbstractCDOView.getObject( AbstractCDOView.java:1)
>>>
>>>
>>> ...
>>>
>>> If I query other classes in my model it works fine. A simple sql query
>>> statement like "Select * From StringValue" works also fine.
>>>
>>> Thanks!
>>> David
>
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| Re: [CDO] OCL Queries [message #651047 is a reply to message #650975] |
Thu, 27 January 2011 14:31 |
|
Am 27.01.2011 11:40, schrieb David Hein:
> In the standard way without modifying data it works fine. But then I do some modifications and the same problem come again.
>
> In the database table i found some entries like this:
>
> CDO_ID CDO_VERSION CDO_BRANCH CDO_REVISED ...
>
> 2657 -2 0 0
The -2 is a DBStore implementation detail, telling that object 2657 has been deleted in "version" 2. Please write down the cdo_created value of that row and check that you find nowhere in your DB any reference to 2657 that is valid at or after this cdo_created value (0 time means indefinitely).
> 2657 1 0 1296123470213
>
> 2658 -2 0 0
> 2658 1 0 1296123470213
>
> 2659 -2 0 0
> 2659 1 0 1296123470213
>
> Is it possible that i forget do update or delete some references in my model?
Yes, if you don't set ensureReferentialIntegrity="true" in the server.
Cheers
/Eike
----
http://www.esc-net.de
http://thegordian.blogspot.com
http://twitter.com/eikestepper
>
> Thanks.
>
> Am 27/01/2011 11:06, schrieb David Hein:
>> thank you very much! it works! :)
>>
>> Am 27/01/2011 10:40, schrieb Eike Stepper:
>>> Hi David,
>>>
>>> Are you sure that your repository does not contain any stale references
>>> (references to objects that have been deleted)?
>>>
>>> In CDO 4.0 you can use the new repository property
>>> ensureReferentialIntegrity="true" to prevent this scenario. Of course
>>> this will consume some additional CPU cycles during commits.
>>>
>>> Cheers
>>> /Eike
>>>
>>> ----
>>> http://www.esc-net.de
>>> http://thegordian.blogspot.com
>>> http://twitter.com/eikestepper
>>>
>>>
>>>
>>> Am 27.01.2011 09:53, schrieb David Hein:
>>>> Hello everyone,
>>>>
>>>> i've got some problems with the ocl queries. I want to do a query like
>>>> this:
>>>>
>>>> CDOQuery oclQuery = cdoTransaction.createQuery("ocl",
>>>> "StringValue.allInstances()", TypesPackage.eINSTANCE.getStringValue());
>>>>
>>>> StringValue is a class in my EMF model. The Server print the following
>>>> exception:
>>>>
>>>> !MESSAGE Evaluation failed with an exception: Object OID2211 not found
>>>> in branch 0 at *
>>>> !STACK 0
>>>> org.eclipse.emf.cdo.util.ObjectNotFoundException: Object OID2211 not
>>>> found in branch 0 at *
>>>> at
>>>> org.eclipse.emf.internal.cdo.view.AbstractCDOView.createObje ct(AbstractCDOView.java:808)
>>>>
>>>>
>>>> at
>>>> org.eclipse.emf.internal.cdo.view.AbstractCDOView.getObject( AbstractCDOView.java:712)
>>>>
>>>>
>>>> at
>>>> org.eclipse.emf.internal.cdo.view.AbstractCDOView.getObject( AbstractCDOView.java:664)
>>>>
>>>>
>>>> at
>>>> org.eclipse.emf.internal.cdo.view.AbstractCDOView.getObject( AbstractCDOView.java:1)
>>>>
>>>>
>>>> ...
>>>>
>>>> If I query other classes in my model it works fine. A simple sql query
>>>> statement like "Select * From StringValue" works also fine.
>>>>
>>>> Thanks!
>>>> David
>>
>
Cheers
/Eike
----
http://www.esc-net.de
http://thegordian.blogspot.com
http://twitter.com/eikestepper
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