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JPOXMappingException: URI <X> does not translate to an eclass [message #128175]

Wed, 06 August 2008 18:55

Eclipse User

Originally posted by: richard.fritzson.gmail.com

Hi,

I've been having pretty good success using Teneo to map a large ecore
model (based on OMG's KDM standard). However, one problem I've had to work
around is my inability to use abstract classes. (To get around this I've
converted all my abstract classes to concrete ones but this is no longer a
reasonable tactic.)

If I create an EReference and specify its EType to be an EClass whose
"abstract" property is "true" I get this error from GenerateJDO :
"JPOXMappingException: URI <X> does not translate to an eclass" where <X>
is the name of the abstract EClass.

This happens even when the abstract EClass has non abstract subclasses.

The simplest example of this can be created by taking the library example
and creating an abstract class Person, making it the superclass of Writer
and changing the EType of a library's Writers to Person.

I'm using Eclipse 3.4, jpox-1.1.9, jdo2 2.0 & bcel-5.2

If anyone has a suggestion for how I can address this, I would appreciate
it.

Thanks.

Rich Fritzson

The stack looks like this:

Aug 6, 2008 2:38:35 PM org.eclipse.emf.teneo.TeneoException <init>
SEVERE: Uri: Person does not translate to an eclass
org.eclipse.emf.teneo.jpox.mapper.JPOXMappingException: Uri: Person does
not translate to an eclass
at
org.eclipse.emf.teneo.jpox.mapper.MappingUtil.getImplNameOfE Class(MappingUtil.java:44)
at
org.eclipse.emf.teneo.jpox.mapper.association.OneToManyMappe r.map(OneToManyMapper.java:122)
at
org.eclipse.emf.teneo.jpox.mapper.property.EClassFeatureMapp er.processPersistableMember(EClassFeatureMapper.java:172)
at
org.eclipse.emf.teneo.jpox.mapper.property.EClassFeatureMapp er.map(EClassFeatureMapper.java:97)
at
org.eclipse.emf.teneo.jpox.mapper.JPOXMappingGenerator.proce ssClassAnnotation(JPOXMappingGenerator.java:257)
at
org.eclipse.emf.teneo.jpox.mapper.JPOXMappingGenerator.gener ate(JPOXMappingGenerator.java:139)
at
org.eclipse.emf.teneo.jpox.mapper.GenerateJDO.createORMapper File(GenerateJDO.java:127)
at
org.eclipse.emf.teneo.jpox.mapper.GenerateJDO.createORMapper File(GenerateJDO.java:92)
at org.eclipse.emf.teneo.jpox.mapper.GenerateJDO.main(GenerateJ DO.java:87)

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Re: JPOXMappingException: URI <X> does not translate to an eclass [message #128243 is a reply to message #128175]

Thu, 07 August 2008 10:31

Martin Taal

Messages: 5468
Registered: July 2009

Senior Member

This is a multi-part message in MIME format.
--------------040005010105050904040000
Content-Type: text/plain; charset=ISO-8859-15; format=flowed
Content-Transfer-Encoding: 7bit

Hi Richard,
Jpox requires each class to have a java implementation. Did you regenerate the source code after
specifying the abstract super class? Is the genmodel loaded from the ecore file or from the xsd?

I did the same as you did and programmatically generating the jdo file works fine. I have attached
the jdo file and the ecore to this post.
Let me know if you see a difference between what I did and you did.

Btw, support for Teneo is given on the emf newsgroup. I have cc-ed the emf newsgroup.

gr. Martin

Richard Fritzson wrote:
> Hi,
>
> I've been having pretty good success using Teneo to map a large ecore
> model (based on OMG's KDM standard). However, one problem I've had to
> work around is my inability to use abstract classes. (To get around this
> I've converted all my abstract classes to concrete ones but this is no
> longer a reasonable tactic.)
>
> If I create an EReference and specify its EType to be an EClass whose
> "abstract" property is "true" I get this error from GenerateJDO :
> "JPOXMappingException: URI <X> does not translate to an eclass" where
> <X> is the name of the abstract EClass.
>
> This happens even when the abstract EClass has non abstract subclasses.
>
> The simplest example of this can be created by taking the library
> example and creating an abstract class Person, making it the superclass
> of Writer and changing the EType of a library's Writers to Person.
>
> I'm using Eclipse 3.4, jpox-1.1.9, jdo2 2.0 & bcel-5.2
>
> If anyone has a suggestion for how I can address this, I would
> appreciate it.
>
> Thanks.
>
> Rich Fritzson
>
>
> The stack looks like this:
>
> Aug 6, 2008 2:38:35 PM org.eclipse.emf.teneo.TeneoException <init>
> SEVERE: Uri: Person does not translate to an eclass
> org.eclipse.emf.teneo.jpox.mapper.JPOXMappingException: Uri: Person does
> not translate to an eclass
> at
> org.eclipse.emf.teneo.jpox.mapper.MappingUtil.getImplNameOfE Class(MappingUtil.java:44)
>
> at
> org.eclipse.emf.teneo.jpox.mapper.association.OneToManyMappe r.map(OneToManyMapper.java:122)
>
> at
> org.eclipse.emf.teneo.jpox.mapper.property.EClassFeatureMapp er.processPersistableMember(EClassFeatureMapper.java:172)
>
> at
> org.eclipse.emf.teneo.jpox.mapper.property.EClassFeatureMapp er.map(EClassFeatureMapper.java:97)
>
> at
> org.eclipse.emf.teneo.jpox.mapper.JPOXMappingGenerator.proce ssClassAnnotation(JPOXMappingGenerator.java:257)
>
> at
> org.eclipse.emf.teneo.jpox.mapper.JPOXMappingGenerator.gener ate(JPOXMappingGenerator.java:139)
>
> at
> org.eclipse.emf.teneo.jpox.mapper.GenerateJDO.createORMapper File(GenerateJDO.java:127)
>
> at
> org.eclipse.emf.teneo.jpox.mapper.GenerateJDO.createORMapper File(GenerateJDO.java:92)
>
> at
> org.eclipse.emf.teneo.jpox.mapper.GenerateJDO.main(GenerateJ DO.java:87)
>
>
>

--

With Regards, Martin Taal

Springsite/Elver.org
Office: Hardwareweg 4, 3821 BV Amersfoort
Postal: Nassaulaan 7, 3941 EC Doorn
The Netherlands
Cell: +31 (0)6 288 48 943
Tel: +31 (0)84 420 2397
Fax: +31 (0)84 225 9307
Mail: mtaal@springsite.com - mtaal@elver.org
Web: www.springsite.com - www.elver.org

--------------040005010105050904040000
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<?xml version="1.0" encoding="UTF-8"?>
<ecore:EPackage xmi:version="2.0"
xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore" name="library"
nsURI="http://www.eclipse.org/emf/teneo/samples/emf/sample/Library" nsPrefix="library">
<eClassifiers xsi:type="ecore:EClass" name="Book">
<eAnnotations source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData">
<details key="name" value="Book"/>
<details key="kind" value="elementOnly"/>
</eAnnotations>
<eStructuralFeatures xsi:type="ecore:EAttribute" name="title" unique="false" lowerBound="1"
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<eAnnotations source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData">
<details key="kind" value="element"/>
<details key="name" value="title"/>
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<eStructuralFeatures xsi:type="ecore:EAttribute" name="pages" unique="false" lowerBound="1"
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<eAnnotations source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData">
<details key="kind" value="element"/>
<details key="name" value="pages"/>
</eAnnotations>
</eStructuralFeatures>
<eStructuralFeatures xsi:type="ecore:EAttribute" name="category" unique="false"
lowerBound="1" eType="#//BookCategory" defaultValueLiteral="Mystery" unsettable="true">
<eAnnotations source="teneo.jpa">
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</eAnnotations>
<eAnnotations source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData">
<details key="kind" value="element"/>
<details key="name" value="category"/>
</eAnnotations>
</eStructuralFeatures>
<eStructuralFeatures xsi:type="ecore:EReference" name="author" lowerBound="1"
eType="#//Writer" eOpposite="#//Writer/books">
<eAnnotations source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData">
<details key="kind" value="element"/>
<details key="name" value="author"/>
</eAnnotations>
<eAnnotations source="teneo.jpa">
<details key="appinfo" value="@JoinColumn(name="schrijver")"/>
</eAnnotations>
</eStructuralFeatures>
</eClassifiers>
<eClassifiers xsi:type="ecore:EEnum" name="BookCategory">
<eAnnotations source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData">
<details key="name" value="BookCategory"/>
</eAnnotations>
<eLiterals name="Mystery"/>
<eLiterals name="ScienceFiction" value="1"/>
<eLiterals name="Biography" value="2"/>
</eClassifiers>
<eClassifiers xsi:type="ecore:EDataType" name="BookCategoryObject" instanceClassName="org.eclipse.emf.common.util.Enumerator">
<eAnnotations source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData">
<details key="name" value="BookCategory:Object"/>
<details key="baseType" value="BookCategory"/>
</eAnnotations>
</eClassifiers>
<eClassifiers xsi:type="ecore:EClass" name="Library">
<eAnnotations source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData">
<details key="name" value="Library"/>
<details key="kind" value="elementOnly"/>
</eAnnotations>
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<details key="kind" value="element"/>
<details key="name" value="name"/>
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<eStructuralFeatures xsi:type="ecore:EReference" name="writers" upperBound="-1"
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</eAnnotations>
<eAnnotations source="teneo.hibernate">
<details key="appinfo" value=" @Fetch(SUBSELECT)
@ForeignKey(name="schrijv ers") "/>
</eAnnotations>
</eStructuralFeatures>
<eStructuralFeatures xsi:type="ecore:EReference" name="books" upperBound="-1"
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<eAnnotations source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData">
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</eAnnotations>
</eStructuralFeatures>
</eClassifiers>
<eClassifiers xsi:type="ecore:EClass" name="Writer" eSuperTypes="#//Person">
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<eAnnotations source="teneo.jpa">
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</eAnnotations>
</eStructuralFeatures>
</eClassifiers>
<eClassifiers xsi:type="ecore:EClass" name="Person" abstract="true"/>
</ecore:EPackage>

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Re: JPOXMappingException: URI <X> does not translate to an eclass [message #128287 is a reply to message #128243]

Thu, 07 August 2008 14:31

Eclipse User

Originally posted by: richard.fritzson.gmail.com

Hi Martin,

Thanks for the quick response.

I did regenerate the source code after changing the ecore model. The
genmodel is loaded from the ecore file.

I've looked over your files and reread your note. Here are the differences
I see which might make a difference.

- Judging by your package.jdo your source code seems to contain a
PersonImpl.java file; mine does not. I get a Person.java file containing
the Interface definition, but not a PersonImpl.java file. (For the Writer
class I get both Writer.java and WriterImpl.java.) I assumed this was
standard for an abstract class, but I don't have much experience with this.

- You also wrote that you programmatically generate your jdo file while
I've been right clicking on the model. If I switch to doing this
programmaticallyl, are there particular options I ought to be passing to
the process?

My ecore model doesn't have the extended metadata that yours has, but it
isn't clear to me that this would make a difference.

I appreciate your help with this.

regards,

Rich

Martin Taal wrote:

> Hi Richard,
> Jpox requires each class to have a java implementation. Did you regenerate
the source code after
> specifying the abstract super class? Is the genmodel loaded from the ecore
file or from the xsd?

> I did the same as you did and programmatically generating the jdo file works
fine. I have attached
> the jdo file and the ecore to this post.
> Let me know if you see a difference between what I did and you did.

> Btw, support for Teneo is given on the emf newsgroup. I have cc-ed the emf
newsgroup.

> gr. Martin

> Richard Fritzson wrote:
>> Hi,
>>
>> I've been having pretty good success using Teneo to map a large ecore
>> model (based on OMG's KDM standard). However, one problem I've had to
>> work around is my inability to use abstract classes. (To get around this
>> I've converted all my abstract classes to concrete ones but this is no
>> longer a reasonable tactic.)
>>
>> If I create an EReference and specify its EType to be an EClass whose
>> "abstract" property is "true" I get this error from GenerateJDO :
>> "JPOXMappingException: URI <X> does not translate to an eclass" where
>> <X> is the name of the abstract EClass.
>>
>> This happens even when the abstract EClass has non abstract subclasses.
>>
>> The simplest example of this can be created by taking the library
>> example and creating an abstract class Person, making it the superclass
>> of Writer and changing the EType of a library's Writers to Person.
>>
>> I'm using Eclipse 3.4, jpox-1.1.9, jdo2 2.0 & bcel-5.2
>>
>> If anyone has a suggestion for how I can address this, I would
>> appreciate it.
>>
>> Thanks.
>>
>> Rich Fritzson
>>
>>

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Re: JPOXMappingException: URI <X> does not translate to an eclass [message #128326 is a reply to message #128287]

Thu, 07 August 2008 14:45

Ed Merks

Messages: 33140
Registered: July 2009

Senior Member

Richard,

Comments below.

Richard Fritzson wrote:
> Hi Martin,
> Thanks for the quick response.
>
> I did regenerate the source code after changing the ecore model. The
> genmodel is loaded from the ecore file.
>
> I've looked over your files and reread your note. Here are the
> differences I see which might make a difference.
>
> - Judging by your package.jdo your source code seems to contain a
> PersonImpl.java file; mine does not.
Maybe you marked as it as "isInterface" true so that no Impl is
generated? It's generally better to generate an Impl so that
implementations of derived EClasses can share a common base
implementation class.
> I get a Person.java file containing the Interface definition, but not
> a PersonImpl.java file. (For the Writer class I get both Writer.java
> and WriterImpl.java.) I assumed this was standard for an abstract
> class, but I don't have much experience with this.
>
> - You also wrote that you programmatically generate your jdo file
> while I've been right clicking on the model. If I switch to doing this
> programmaticallyl, are there particular options I ought to be passing
> to the process?
> My ecore model doesn't have the extended metadata that yours has, but
> it isn't clear to me that this would make a difference.
Have a look to see if you've marked your model to make the EClass purely
an interface
>
> I appreciate your help with this.
>
> regards,
>
> Rich
>
> Martin Taal wrote:
>
>> Hi Richard,
>> Jpox requires each class to have a java implementation. Did you
>> regenerate
> the source code after
>> specifying the abstract super class? Is the genmodel loaded from the
>> ecore
> file or from the xsd?
>
>> I did the same as you did and programmatically generating the jdo
>> file works
> fine. I have attached
>> the jdo file and the ecore to this post.
>> Let me know if you see a difference between what I did and you did.
>
>> Btw, support for Teneo is given on the emf newsgroup. I have cc-ed
>> the emf
> newsgroup.
>
>> gr. Martin
>
>> Richard Fritzson wrote:
>>> Hi,
>>>
>>> I've been having pretty good success using Teneo to map a large
>>> ecore model (based on OMG's KDM standard). However, one problem I've
>>> had to work around is my inability to use abstract classes. (To get
>>> around this I've converted all my abstract classes to concrete ones
>>> but this is no longer a reasonable tactic.)
>>>
>>> If I create an EReference and specify its EType to be an EClass
>>> whose "abstract" property is "true" I get this error from
>>> GenerateJDO : "JPOXMappingException: URI <X> does not translate to
>>> an eclass" where <X> is the name of the abstract EClass.
>>>
>>> This happens even when the abstract EClass has non abstract subclasses.
>>>
>>> The simplest example of this can be created by taking the library
>>> example and creating an abstract class Person, making it the
>>> superclass of Writer and changing the EType of a library's Writers
>>> to Person.
>>>
>>> I'm using Eclipse 3.4, jpox-1.1.9, jdo2 2.0 & bcel-5.2
>>>
>>> If anyone has a suggestion for how I can address this, I would
>>> appreciate it.
>>>
>>> Thanks.
>>>
>>> Rich Fritzson
>>>
>>>
>

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: JPOXMappingException: URI <X> does not translate to an eclass [message #128378 is a reply to message #128326]

Thu, 07 August 2008 15:26

Eclipse User

Originally posted by: richard.fritzson.gmail.com

Ed Merks wrote:

> Richard,
....
> Have a look to see if you've marked your model to make the EClass purely
> an interface

Bingo.

I actually like feeling stupid because it's a sure sign I learned
something. :-)

Now that my simple example works I have alot of editing to do on a much
larger ecore model.

Many thanks for the tip.

Rich

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