| Xcore 100 EClassifier limit? [message #1455743] |
Wed, 29 October 2014 14:08  |
Eclipse User |
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I have a .xcore file with 113 entries (class + enum + interface). When I save it (after making changes) or clean and rebuild, I get nothing in the mypkg.util package (i.e. the AdapterFactory and Switch don't get generated), and MyFactory.java, MyPackage.java, MyFactoryImpl.java and MyPackageImpl.java don't get generated.
Turns out that if I get rid of 13 of those entries everything generates ok. And then if I add just one back, the files mentioned above disappear and I get compile errors all over the place.
Is this a known problem? Is there a workaround (like using multiple .xcore files or splitting into subpackages or something)?
Thanks for the help.
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| Re: Xcore 100 EClassifier limit? [message #1456565 is a reply to message #1455787] |
Thu, 30 October 2014 09:44  |
| Eclipse User |
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Erick,
Please open a bugzilla with an Xcore instance that reproduces the
problem so I can have a look. Also have a look in the Error Log; likely
there's a clue there about what's gone wrong. I suspect it's a bug
that's been fixed in the in the pre-SR2 maintenance stream, so please
first try updating from
http://download.eclipse.org/modeling/emf/emf/updates/2.10.x to pick up
that fix. Alternatively, try setting "Initialize by Loading" to fast in
the properties view when you have the package declaration of the *.xcore
selected; hopefully that doesn't generate class files that have too much
byte code, but also should avoid this problem, if my theory is correct.
On 29/10/2014 8:08 PM, Erick Hagstrom wrote:
> Ok, there doesn't seem to be a 100 EClassifier limit. It's a 500
> ENamedElement limit.
>
> I just created several test .xcore files. One, with 500 class entries.
> All generates well. Add the 501st class and generation of Factory,
> Package, and .util fails. But don't add the 501st class. Stick with
> 500 classes and add a single attribute to any one of them. Gen fails
> again.
>
> Another, with 100 class entries, each of which has 4 attributes. All
> generates well. Add the 101st class (an empty one) and gen fails.
> Leave it in and comment out one of the attributes on one of the other
> classes and gen works again.
>
> So are there any suggestions on how I can proceed with my excessively
> large .xcore file for my doesn't-seem-so-large project?
>
> Thanks
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| Re: Xcore 100 EClassifier limit? [message #1456648 is a reply to message #1456565] |
Thu, 30 October 2014 11:25 |
| Eclipse User |
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Thanks Ed, always a pleasure to hear from you.
I opened bugzilla #449370 for this.
You are correct, the update fixes the problem.
Prior to updating, Initialize by Loading -> false also fixed the problem.
The error log reveals a NPE in GenPackageGeneratorAdapter.java. More specifically,
*** Begin Error Log ***
!ENTRY org.eclipse.emf.codegen.ecore 2 0 2014-10-30 10:54:06.609
!MESSAGE
!STACK 0
java.lang.NullPointerException
at org.eclipse.emf.codegen.ecore.genmodel.generator.GenPackageGeneratorAdapter$3.redirect(GenPackageGeneratorAdapter.java:483)
at org.eclipse.emf.codegen.ecore.genmodel.generator.GenPackageGeneratorAdapter$3.setBaseURI(GenPackageGeneratorAdapter.java:534)
at org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.doSave(XMLResourceImpl.java:401)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.save(ResourceImpl.java:1430)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.saveOnlyIfChangedWithMemoryBuffer(ResourceImpl.java:1144)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.save(ResourceImpl.java:985)
at org.eclipse.emf.codegen.ecore.genmodel.generator.GenPackageGeneratorAdapter.generatePackageSerialization(GenPackageGeneratorAdapter.java:544)
at org.eclipse.emf.codegen.ecore.genmodel.generator.GenPackageGeneratorAdapter.generateModel(GenPackageGeneratorAdapter.java:213)
at org.eclipse.emf.codegen.ecore.genmodel.generator.GenBaseGeneratorAdapter.doGenerate(GenBaseGeneratorAdapter.java:215)
at org.eclipse.emf.codegen.ecore.generator.AbstractGeneratorAdapter.generate(AbstractGeneratorAdapter.java:317)
at org.eclipse.emf.codegen.ecore.generator.Generator.generate(Generator.java:708)
at org.eclipse.emf.codegen.ecore.generator.Generator.generate(Generator.java:619)
at org.eclipse.emf.ecore.xcore.generator.XcoreGenerator.generateGenModel(XcoreGenerator.java:279)
at org.eclipse.emf.ecore.xcore.generator.XcoreGenerator.doGenerate(XcoreGenerator.java:227)
at org.eclipse.xtext.builder.BuilderParticipant.handleChangedContents(BuilderParticipant.java:515)
at org.eclipse.emf.ecore.xcore.ui.builder.XcoreBuildParticipant.handleChangedContents(XcoreBuildParticipant.java:135)
at org.eclipse.xtext.builder.BuilderParticipant.handleChangedContents(BuilderParticipant.java:505)
at org.eclipse.xtext.builder.BuilderParticipant.doGenerate(BuilderParticipant.java:490)
at org.eclipse.xtext.builder.BuilderParticipant.doBuild(BuilderParticipant.java:259)
at org.eclipse.xtext.builder.BuilderParticipant.build(BuilderParticipant.java:217)
at org.eclipse.emf.ecore.xcore.ui.builder.XcoreBuildParticipant.build(XcoreBuildParticipant.java:48)
at org.eclipse.xtext.builder.impl.RegistryBuilderParticipant$DeferredBuilderParticipant.build(RegistryBuilderParticipant.java:158)
at org.eclipse.xtext.builder.impl.RegistryBuilderParticipant.build(RegistryBuilderParticipant.java:68)
at org.eclipse.xtext.builder.impl.XtextBuilder.doBuild(XtextBuilder.java:196)
at org.eclipse.xtext.builder.impl.XtextBuilder.incrementalBuild(XtextBuilder.java:171)
at org.eclipse.xtext.builder.impl.XtextBuilder.build(XtextBuilder.java:99)
at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:734)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:206)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:246)
at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:299)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:302)
at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:358)
at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:381)
at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:143)
at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:241)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
*** End Error Log ***
Sounds like you have a good handle on this issue, so I'll consider it closed. Thanks!
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