[news.eclipse.modeling.mdt.ocl] Re: OCL/UML Help

[Ed Merks <merks@xxxxxxxxxx>]

Andew,

It sounds like you are running standalone but haven't put the 
net.sourceforge.lpg.lpgjavaruntime jar on the classpath.


Andrew Carton wrote:
> Hi,
> I'm just trying to get OCL working with UML and having a few problems. 
> Below is the source and the exception trace that I keep getting. I'd 
> really appreciate it if someone could give me a quick hand. The 
> tutorials only illustrate Ecore metamodels and I can't find any simple 
> tutorials that shows you how to use queries over UML/Ecore. My uml 
> model is a simple one - at its root it has a Model and its 
> packagedElements are two packages. I thought passing in the .eClass() 
> from the Model element would work but it doesn't seem to. I tried this 
> query on the OCL console with my model and it works!
>
> Thanks in advance,
> Andrew
>
> Resource.Factory.Registry.INSTANCE.getExtensionToFactoryMap().put(UMLResource.FILE_EXTENSION, 
> UMLResource.Factory.INSTANCE);
>        
> Resource.Factory.Registry.INSTANCE.getExtensionToFactoryMap().put("xmi", 
> new XMIResourceFactoryImpl());
>
>        
> resourceSet.getPackageRegistry().put(UMLPackage.eNS_URI,UMLPackage.eINSTANCE); 
>
>
> Model p = (Model) load(URI.createURI("My.uml"));
> boolean valid;
> EList e = p.getPackagedElements();
> try {
>     Query query = QueryFactory.eINSTANCE.createQuery(
>     "self.nestedPackage->collect( e | e.packagedElement->collect(f | 
> f.name))",
>      p.eClass());
>      valid = true;
>      } catch (IllegalArgumentException s) {
>      valid = false;
>      System.err.println(s.getLocalizedMessage());
> }
>     
>
> Exception in thread "main" java.lang.NoClassDefFoundError: 
> lpg/lpgjavaruntime/RuleAction
>     at java.lang.ClassLoader.defineClass1(Native Method)
>     at java.lang.ClassLoader.defineClass(Unknown Source)
>     at java.security.SecureClassLoader.defineClass(Unknown Source)
>     at java.net.URLClassLoader.defineClass(Unknown Source)
>     at java.net.URLClassLoader.access$000(Unknown Source)
>     at java.net.URLClassLoader$1.run(Unknown Source)
>     at java.security.AccessController.doPrivileged(Native Method)
>     at java.net.URLClassLoader.findClass(Unknown Source)
>     at java.lang.ClassLoader.loadClass(Unknown Source)
>     at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
>     at java.lang.ClassLoader.loadClass(Unknown Source)
>     at java.lang.ClassLoader.loadClassInternal(Unknown Source)
>     at 
> org.eclipse.emf.ocl.expressions.util.ExpressionsUtil.createParser(ExpressionsUtil.java:680) 
>
>     at 
> org.eclipse.emf.ocl.expressions.util.ExpressionsUtil.createParser(ExpressionsUtil.java:663) 
>
>     at 
> org.eclipse.emf.ocl.expressions.util.ExpressionsUtil.createQuery(ExpressionsUtil.java:177) 
>
>     at 
> org.eclipse.emf.ocl.expressions.util.ExpressionsUtil.createQuery(ExpressionsUtil.java:156) 
>
>     at 
> org.eclipse.emf.ocl.query.impl.QueryUtil.makeOCLQuery(QueryUtil.java:66)
>     at 
> org.eclipse.emf.ocl.query.impl.QueryFactoryImpl.createQuery(QueryFactoryImpl.java:127) 
>
>     at PackageMerge.main(PackageMerge.java:98)