m2m-dev

Re: [m2m-dev] MOF metametamodel

ed@xxxxxxx (Ed Willink) — Thu, 19 Nov 2009 19:31:23 GMT

Hi Andreza

I provided the models.

You now need someone with ATL knowledge to assuist you. My own limited experience of ATL is that meta-models could be awkward because ATL doesn't use EMF directly.

Regards

Ed Willink

Andreza Vieira wrote:

Hello,

I've got some metamodels conforming to MOF 1.4 (here: http://www.emn.fr/z-info/atlanmod/index.php/MDR) in order to use them like my "IN" (inputs) in the ATL transformations. But, when I use the metametamodel that you suggested described in MOF, the console shows an error. See below the error in the Eclipse 3.4 and Eclipse 3.2:

---> Using Eclipse Version: 3.4.0

Window Messenger Error:
An internal error occurred during: "Launching GuidelinesApplicatorTool".
java.lang.NullPointerException

Console Error:
SEVERE: null
java.lang.NullPointerException
    at org.eclipse.m2m.atl.adt.launching.AtlRegularVM.getSourceModels(AtlRegularVM.java:147)
    at org.eclipse.m2m.atl.adt.launching.AtlRegularVM.runAtlLauncher(AtlRegularVM.java:304)
    at org.eclipse.m2m.atl.adt.launching.AtlRegularVM.runAtlLauncher(AtlRegularVM.java:426)
    at org.eclipse.m2m.atl.adt.launching.AtlRegularVM.launch(AtlRegularVM.java:398)
    at org.eclipse.m2m.atl.adt.launching.AtlLaunchConfigurationDelegate.launch(AtlLaunchConfigurationDelegate.java:42)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:764)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:614)
    at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:827)
    at org.eclipse.debug.internal.ui.DebugUIPlugin$7.run(DebugUIPlugin.java:1030)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
SEVERE: null
java.lang.NullPointerException
    at org.eclipse.m2m.atl.adt.launching.AtlRegularVM.getTargetModels(AtlRegularVM.java:196)
    at org.eclipse.m2m.atl.adt.launching.AtlRegularVM.runAtlLauncher(AtlRegularVM.java:305)
    at org.eclipse.m2m.atl.adt.launching.AtlRegularVM.runAtlLauncher(AtlRegularVM.java:426)
    at org.eclipse.m2m.atl.adt.launching.AtlRegularVM.launch(AtlRegularVM.java:398)
    at org.eclipse.m2m.atl.adt.launching.AtlLaunchConfigurationDelegate.launch(AtlLaunchConfigurationDelegate.java:42)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:764)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:614)
    at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:827)
    at org.eclipse.debug.internal.ui.DebugUIPlugin$7.run(DebugUIPlugin.java:1030)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
SEVERE: ****** BEGIN Stack Trace
SEVERE:     message: cannot find model MOF
SEVERE: A.main() : ??#22 null
SEVERE:     local variables = {self=InheritedAttributes : ASMModule}
SEVERE:     local stack = []
SEVERE: A.__matcher__() : ??#1 null
SEVERE:     local variables = {self=InheritedAttributes : ASMModule}
SEVERE:     local stack = []
SEVERE: A.__matchMofToMof() : ??#2 null
SEVERE:     local variables = {self=InheritedAttributes : ASMModule}
SEVERE:     local stack = []
SEVERE: ****** END Stack Trace
INFO: Execution terminated due to error (see launch configuration to allow continuation after errors).
SEVERE: cannot find model MOF
java.lang.RuntimeException: cannot find model MOF
    at org.eclipse.m2m.atl.engine.vm.SimpleDebugger.error(SimpleDebugger.java:195)
    at org.eclipse.m2m.atl.engine.vm.StackFrame.printStackTrace(StackFrame.java:95)
    at org.eclipse.m2m.atl.engine.vm.StackFrame.printStackTrace(StackFrame.java:91)
    at org.eclipse.m2m.atl.engine.vm.ASMOperation.realExec(ASMOperation.java:292)
    at org.eclipse.m2m.atl.engine.vm.ASMOperation.exec(ASMOperation.java:171)
    at org.eclipse.m2m.atl.engine.vm.nativelib.ASMOclAny.invoke(ASMOclAny.java:143)
    at org.eclipse.m2m.atl.engine.vm.nativelib.ASMOclAny.invoke(ASMOclAny.java:101)
    at org.eclipse.m2m.atl.engine.vm.ASMOperation.realExec(ASMOperation.java:240)
    at org.eclipse.m2m.atl.engine.vm.ASMOperation.exec(ASMOperation.java:171)
    at org.eclipse.m2m.atl.engine.vm.nativelib.ASMOclAny.invoke(ASMOclAny.java:143)
    at org.eclipse.m2m.atl.engine.vm.nativelib.ASMOclAny.invoke(ASMOclAny.java:101)
    at org.eclipse.m2m.atl.engine.vm.ASMOperation.realExec(ASMOperation.java:240)
    at org.eclipse.m2m.atl.engine.vm.ASMOperation.exec(ASMOperation.java:171)
    at org.eclipse.m2m.atl.engine.vm.ASMInterpreter.(ASMInterpreter.java:299)
    at org.eclipse.m2m.atl.engine.AtlLauncher.launch(AtlLauncher.java:169)
    at org.eclipse.m2m.atl.engine.AtlLauncher.launch(AtlLauncher.java:111)
    at org.eclipse.m2m.atl.engine.AtlLauncher.launch(AtlLauncher.java:87)
    at org.eclipse.m2m.atl.adt.launching.AtlRegularVM.runAtlLauncher(AtlRegularVM.java:326)
    at org.eclipse.m2m.atl.adt.launching.AtlRegularVM.runAtlLauncher(AtlRegularVM.java:426)
    at org.eclipse.m2m.atl.adt.launching.AtlRegularVM.launch(AtlRegularVM.java:398)
    at org.eclipse.m2m.atl.adt.launching.AtlLaunchConfigurationDelegate.launch(AtlLaunchConfigurationDelegate.java:42)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:764)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:614)
    at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:827)
    at org.eclipse.debug.internal.ui.DebugUIPlugin$7.run(DebugUIPlugin.java:1030)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

---> Using Eclipse Version: 3.2.1

Console Error:

Error while reading MOF:
****** BEGIN Stack Trace
    message: cannot find metamodel element Class in model MOF
A.main() : ??#22 null
    local variables = {self=InheritedAttributes : ASMModule}
    local stack = []
A.__matcher__() : ??#1 null
    local variables = {self=InheritedAttributes : ASMModule}
    local stack = []
A.__matchMofToMof() : ??#2 null
    local variables = {self=InheritedAttributes : ASMModule}
    local stack = []
****** END Stack Trace
Execution terminated due to error (see launch configuration to allow continuation after errors).
java.lang.NullPointerException
    at org.atl.engine.repositories.emf4atl.ASMEMFModelElement.set(ASMEMFModelElement.java:229)
    at org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector2.java:903)
    at org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector2.java:452)
    at org.atl.engine.injectors.ebnf.ATLParser.module(ATLParser.java:784)
    at org.atl.engine.injectors.ebnf.ATLParser.unit(ATLParser.java:91)
    at org.atl.engine.injectors.ebnf.ATLParser.main(ATLParser.java:65)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.atl.engine.injectors.ebnf.EBNFInjector2$ANTLR2Wrapper.parse(EBNFInjector2.java:145)
    at org.atl.engine.injectors.ebnf.EBNFInjector2.performImportation(EBNFInjector2.java:273)
    at org.atl.engine.injectors.ebnf.EBNFInjector2.performImportation(EBNFInjector2.java:243)
    at org.atl.engine.injectors.ebnf.EBNFInjector2.performImportation(EBNFInjector2.java:234)
    at org.atl.eclipse.engine.AtlParser.parseToModelWithProblems(AtlParser.java:49)
    at org.atl.eclipse.engine.Atl2004Compiler.compile(Atl2004Compiler.java:71)
    at org.atl.eclipse.engine.AtlCompiler.compile(AtlCompiler.java:75)
    at org.atl.eclipse.adt.builder.AtlBuildVisitor.visit(AtlBuildVisitor.java:71)
    at org.eclipse.core.internal.resources.Resource$2.visit(Resource.java:105)
    at org.eclipse.core.internal.resources.Resource$1.visitElement(Resource.java:57)
    at org.eclipse.core.internal.watson.ElementTreeIterator.doIteration(ElementTreeIterator.java:81)
    at org.eclipse.core.internal.watson.ElementTreeIterator.doIteration(ElementTreeIterator.java:85)
    at org.eclipse.core.internal.watson.ElementTreeIterator.doIteration(ElementTreeIterator.java:85)
    at org.eclipse.core.internal.watson.ElementTreeIterator.iterate(ElementTreeIterator.java:126)
    at org.eclipse.core.internal.resources.Resource.accept(Resource.java:67)
    at org.eclipse.core.internal.resources.Resource.accept(Resource.java:103)
    at org.eclipse.core.internal.resources.Resource.accept(Resource.java:87)
    at org.atl.eclipse.adt.builder.AtlBuilder.fullBuild(AtlBuilder.java:43)
    at org.atl.eclipse.adt.builder.AtlBuilder$1.run(AtlBuilder.java:32)
    at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1737)
    at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1719)
    at org.atl.eclipse.adt.builder.AtlBuilder.run(AtlBuilder.java:53)
    at org.atl.eclipse.adt.builder.AtlBuilder.build(AtlBuilder.java:35)
    at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:603)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:167)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:201)
    at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:230)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:233)
    at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:252)
    at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:285)
    at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:145)
    at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:208)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:58)
****** BEGIN Stack Trace
    message: ERROR: could not find operation allInstancesFrom on MOF!EClass having supertypes: [MOF!EClassifier, OclType, OclAny] (including Java operations)
A.main() : ??#17 null
    local variables = {self=ATL_WFR : ASMModule}
    local stack = []
A.__matcher__() : ??#6 null
    local variables = {self=ATL_WFR : ASMModule}
    local stack = []
A.__matchFreeVariableIsSelfOrThisModule() : ??#9 null
    local variables = {self=ATL_WFR : ASMModule}
    local stack = [ATL!VariableDeclaration, Sequence {}]
****** END Stack Trace
Trying to continue execution despite the error.
****** BEGIN Stack Trace
    message: ERROR: could not find operation union on MOF!EClass having supertypes: [MOF!EClassifier, OclType, OclAny] (including Java operations)
A.main() : ??#17 null
    local variables = {self=ATL_WFR : ASMModule}
    local stack = []
A.__matcher__() : ??#6 null
    local variables = {self=ATL_WFR : ASMModule}
    local stack = []
A.__matchFreeVariableIsSelfOrThisModule() : ??#10 null
    local variables = {self=ATL_WFR : ASMModule}
    local stack = []
****** END Stack Trace
Trying to continue execution despite the error.
****** BEGIN Stack Trace
    exception:
java.util.EmptyStackException
    at java.util.Stack.peek(Unknown Source)
    at java.util.Stack.pop(Unknown Source)
    at org.atl.engine.vm.ASMStackFrame.pop(ASMStackFrame.java:90)
    at org.atl.engine.vm.ASMOperation.realExec(ASMOperation.java:184)
    at org.atl.engine.vm.ASMOperation.exec(ASMOperation.java:155)
    at org.atl.engine.vm.nativelib.ASMOclAny.invoke(ASMOclAny.java:60)
    at org.atl.engine.vm.nativelib.ASMOclAny.invoke(ASMOclAny.java:50)
    at org.atl.engine.vm.ASMOperation.realExec(ASMOperation.java:214)
    at org.atl.engine.vm.ASMOperation.exec(ASMOperation.java:155)
    at org.atl.engine.vm.nativelib.ASMOclAny.invoke(ASMOclAny.java:60)
    at org.atl.engine.vm.nativelib.ASMOclAny.invoke(ASMOclAny.java:50)
    at org.atl.engine.vm.ASMOperation.realExec(ASMOperation.java:214)
    at org.atl.engine.vm.ASMOperation.exec(ASMOperation.java:155)
    at org.atl.engine.vm.ASMInterpreter.(ASMInterpreter.java:276)
    at org.atl.eclipse.engine.AtlLauncher.launch(AtlLauncher.java:136)
    at org.atl.eclipse.engine.AtlLauncher.launch(AtlLauncher.java:94)
    at org.atl.eclipse.engine.AtlLauncher.launch(AtlLauncher.java:68)
    at org.atl.eclipse.engine.AtlLauncher.launch(AtlLauncher.java:60)
    at org.atl.eclipse.engine.AtlLauncher.launch(AtlLauncher.java:56)
    at org.atl.eclipse.engine.Atl2004Compiler.compile(Atl2004Compiler.java:91)
    at org.atl.eclipse.engine.AtlCompiler.compile(AtlCompiler.java:75)
    at org.atl.eclipse.adt.builder.AtlBuildVisitor.visit(AtlBuildVisitor.java:71)
    at org.eclipse.core.internal.resources.Resource$2.visit(Resource.java:105)
    at org.eclipse.core.internal.resources.Resource$1.visitElement(Resource.java:57)
    at org.eclipse.core.internal.watson.ElementTreeIterator.doIteration(ElementTreeIterator.java:81)
    at org.eclipse.core.internal.watson.ElementTreeIterator.doIteration(ElementTreeIterator.java:85)
    at org.eclipse.core.internal.watson.ElementTreeIterator.doIteration(ElementTreeIterator.java:85)
    at org.eclipse.core.internal.watson.ElementTreeIterator.iterate(ElementTreeIterator.java:126)
    at org.eclipse.core.internal.resources.Resource.accept(Resource.java:67)
    at org.eclipse.core.internal.resources.Resource.accept(Resource.java:103)
    at org.eclipse.core.internal.resources.Resource.accept(Resource.java:87)
    at org.atl.eclipse.adt.builder.AtlBuilder.fullBuild(AtlBuilder.java:43)
    at org.atl.eclipse.adt.builder.AtlBuilder$1.run(AtlBuilder.java:32)
    at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1737)
    at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1719)
    at org.atl.eclipse.adt.builder.AtlBuilder.run(AtlBuilder.java:53)
    at org.atl.eclipse.adt.builder.AtlBuilder.build(AtlBuilder.java:35)
    at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:603)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:167)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:201)
    at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:230)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:233)
    at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:252)
    at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:285)
    at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:145)
    at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:208)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:58)
A.main() : ??#17 null
    local variables = {self=ATL_WFR : ASMModule}
    local stack = []
A.__matcher__() : ??#6 null
    local variables = {self=ATL_WFR : ASMModule}
    local stack = []
A.__matchFreeVariableIsSelfOrThisModule() : ??#11 null
    local variables = {self=ATL_WFR : ASMModule}
    local stack = []
****** END Stack Trace
Trying to continue execution despite the error.
Warning, could not find mathing node for Void in mode

-----------

I think the metamodels I got aren't conforming to MOF you suggested me, because the elements name aren't found in the metametamodel. I also tryed to use the option "Is metamodel" in the ATL Eclipse 3.4 run configuration, but it doesn't work.

I really don't know what to do :(
Any help?

Thanks a lot.
Andreza

2009/11/18 Ed Willink <ed@xxxxxxxxxxxxx>

Hi Andreza

http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.m2m/org.eclipse.qvt.declarative/plugins/org.eclipse.qvt/model/ecore/EMOF.ecore?root=Modeling_Project&view=co

or

http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.m2m/org.eclipse.qvt.declarative/plugins/org.eclipse.qvt/model/emof/EMOF.xml?root=Modeling_Project&view=co

    Ed

Andreza Vieira wrote:

Hi Ed Willink,

Thanks for your answer.
I have been looking for the plugin you suggested, but I couldn't find it. I tryed to use the combobox "Is metametamodel" in the ATL Eclipse run configuration, but it doesn't work :(
I just want the MOF Metamodel (metametamodel) XMI, because in my case the models are metamodels. So, the metamodel must be the metametamodel.
Thanks a lot.

Reguards

2009/11/11 Ed Willink <ed@xxxxxxxxxxxxx>

Hi Andrez

The org.eclipse.qvt plugin for the M2M/QVT Declarative project has a variety of Ecore, and EMOF formats of a variety of OMG models that
form part of QVT. MOF is one of them.

Regards

Ed Willink

Andreza Vieira wrote:

Hello,

Please, I want to do metamodel to metamodel ATL transformations (any kind of metamodels). So, I need to find the metametamodel, that is, MOF. Does anyone knows where can I find the MOF metametamodel?
Thanks a lot.

--
Andreza Vieira

------------------------------------------------------------------------

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--
Andreza Vieira

_______________________________________________ m2m-dev mailing list m2m-dev@xxxxxxxxxxx https://dev.eclipse.org/mailman/listinfo/m2m-dev

_______________________________________________
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--
Andreza Vieira

_______________________________________________ m2m-dev mailing list m2m-dev@xxxxxxxxxxx https://dev.eclipse.org/mailman/listinfo/m2m-dev

Re: [m2m-dev] MOF metametamodel

andreza.ufcg@xxxxxxx (Andreza Vieira) — Thu, 19 Nov 2009 16:53:09 GMT

Hello,

I've got some metamodels conforming to MOF 1.4 (here: http://www.emn.fr/z-info/atlanmod/index.php/MDR) in order to use them like my "IN" (inputs) in the ATL transformations. But, when I use the metametamodel that you suggested described in MOF, the console shows an error. See below the error in the Eclipse 3.4 and Eclipse 3.2:

---> Using Eclipse Version: 3.4.0

Window Messenger Error:
An internal error occurred during: "Launching GuidelinesApplicatorTool".
java.lang.NullPointerException

Console Error:
SEVERE: null
java.lang.NullPointerException
    at org.eclipse.m2m.atl.adt.launching.AtlRegularVM.getSourceModels(AtlRegularVM.java:147)
    at org.eclipse.m2m.atl.adt.launching.AtlRegularVM.runAtlLauncher(AtlRegularVM.java:304)
    at org.eclipse.m2m.atl.adt.launching.AtlRegularVM.runAtlLauncher(AtlRegularVM.java:426)
    at org.eclipse.m2m.atl.adt.launching.AtlRegularVM.launch(AtlRegularVM.java:398)
    at org.eclipse.m2m.atl.adt.launching.AtlLaunchConfigurationDelegate.launch(AtlLaunchConfigurationDelegate.java:42)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:764)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:614)
    at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:827)
    at org.eclipse.debug.internal.ui.DebugUIPlugin$7.run(DebugUIPlugin.java:1030)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
SEVERE: null
java.lang.NullPointerException
    at org.eclipse.m2m.atl.adt.launching.AtlRegularVM.getTargetModels(AtlRegularVM.java:196)
    at org.eclipse.m2m.atl.adt.launching.AtlRegularVM.runAtlLauncher(AtlRegularVM.java:305)
    at org.eclipse.m2m.atl.adt.launching.AtlRegularVM.runAtlLauncher(AtlRegularVM.java:426)
    at org.eclipse.m2m.atl.adt.launching.AtlRegularVM.launch(AtlRegularVM.java:398)
    at org.eclipse.m2m.atl.adt.launching.AtlLaunchConfigurationDelegate.launch(AtlLaunchConfigurationDelegate.java:42)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:764)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:614)
    at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:827)
    at org.eclipse.debug.internal.ui.DebugUIPlugin$7.run(DebugUIPlugin.java:1030)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
SEVERE: ****** BEGIN Stack Trace
SEVERE:     message: cannot find model MOF
SEVERE: A.main() : ??#22 null
SEVERE:     local variables = {self=InheritedAttributes : ASMModule}
SEVERE:     local stack = []
SEVERE: A.__matcher__() : ??#1 null
SEVERE:     local variables = {self=InheritedAttributes : ASMModule}
SEVERE:     local stack = []
SEVERE: A.__matchMofToMof() : ??#2 null
SEVERE:     local variables = {self=InheritedAttributes : ASMModule}
SEVERE:     local stack = []
SEVERE: ****** END Stack Trace
INFO: Execution terminated due to error (see launch configuration to allow continuation after errors).
SEVERE: cannot find model MOF
java.lang.RuntimeException: cannot find model MOF
    at org.eclipse.m2m.atl.engine.vm.SimpleDebugger.error(SimpleDebugger.java:195)
    at org.eclipse.m2m.atl.engine.vm.StackFrame.printStackTrace(StackFrame.java:95)
    at org.eclipse.m2m.atl.engine.vm.StackFrame.printStackTrace(StackFrame.java:91)
    at org.eclipse.m2m.atl.engine.vm.ASMOperation.realExec(ASMOperation.java:292)
    at org.eclipse.m2m.atl.engine.vm.ASMOperation.exec(ASMOperation.java:171)
    at org.eclipse.m2m.atl.engine.vm.nativelib.ASMOclAny.invoke(ASMOclAny.java:143)
    at org.eclipse.m2m.atl.engine.vm.nativelib.ASMOclAny.invoke(ASMOclAny.java:101)
    at org.eclipse.m2m.atl.engine.vm.ASMOperation.realExec(ASMOperation.java:240)
    at org.eclipse.m2m.atl.engine.vm.ASMOperation.exec(ASMOperation.java:171)
    at org.eclipse.m2m.atl.engine.vm.nativelib.ASMOclAny.invoke(ASMOclAny.java:143)
    at org.eclipse.m2m.atl.engine.vm.nativelib.ASMOclAny.invoke(ASMOclAny.java:101)
    at org.eclipse.m2m.atl.engine.vm.ASMOperation.realExec(ASMOperation.java:240)
    at org.eclipse.m2m.atl.engine.vm.ASMOperation.exec(ASMOperation.java:171)
    at org.eclipse.m2m.atl.engine.vm.ASMInterpreter.(ASMInterpreter.java:299)
    at org.eclipse.m2m.atl.engine.AtlLauncher.launch(AtlLauncher.java:169)
    at org.eclipse.m2m.atl.engine.AtlLauncher.launch(AtlLauncher.java:111)
    at org.eclipse.m2m.atl.engine.AtlLauncher.launch(AtlLauncher.java:87)
    at org.eclipse.m2m.atl.adt.launching.AtlRegularVM.runAtlLauncher(AtlRegularVM.java:326)
    at org.eclipse.m2m.atl.adt.launching.AtlRegularVM.runAtlLauncher(AtlRegularVM.java:426)
    at org.eclipse.m2m.atl.adt.launching.AtlRegularVM.launch(AtlRegularVM.java:398)
    at org.eclipse.m2m.atl.adt.launching.AtlLaunchConfigurationDelegate.launch(AtlLaunchConfigurationDelegate.java:42)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:764)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:614)
    at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:827)
    at org.eclipse.debug.internal.ui.DebugUIPlugin$7.run(DebugUIPlugin.java:1030)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

---> Using Eclipse Version: 3.2.1

Console Error:

Error while reading MOF:
****** BEGIN Stack Trace
    message: cannot find metamodel element Class in model MOF
A.main() : ??#22 null
    local variables = {self=InheritedAttributes : ASMModule}
    local stack = []
A.__matcher__() : ??#1 null
    local variables = {self=InheritedAttributes : ASMModule}
    local stack = []
A.__matchMofToMof() : ??#2 null
    local variables = {self=InheritedAttributes : ASMModule}
    local stack = []
****** END Stack Trace
Execution terminated due to error (see launch configuration to allow continuation after errors).
java.lang.NullPointerException
    at org.atl.engine.repositories.emf4atl.ASMEMFModelElement.set(ASMEMFModelElement.java:229)
    at org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector2.java:903)
    at org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector2.java:452)
    at org.atl.engine.injectors.ebnf.ATLParser.module(ATLParser.java:784)
    at org.atl.engine.injectors.ebnf.ATLParser.unit(ATLParser.java:91)
    at org.atl.engine.injectors.ebnf.ATLParser.main(ATLParser.java:65)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.atl.engine.injectors.ebnf.EBNFInjector2$ANTLR2Wrapper.parse(EBNFInjector2.java:145)
    at org.atl.engine.injectors.ebnf.EBNFInjector2.performImportation(EBNFInjector2.java:273)
    at org.atl.engine.injectors.ebnf.EBNFInjector2.performImportation(EBNFInjector2.java:243)
    at org.atl.engine.injectors.ebnf.EBNFInjector2.performImportation(EBNFInjector2.java:234)
    at org.atl.eclipse.engine.AtlParser.parseToModelWithProblems(AtlParser.java:49)
    at org.atl.eclipse.engine.Atl2004Compiler.compile(Atl2004Compiler.java:71)
    at org.atl.eclipse.engine.AtlCompiler.compile(AtlCompiler.java:75)
    at org.atl.eclipse.adt.builder.AtlBuildVisitor.visit(AtlBuildVisitor.java:71)
    at org.eclipse.core.internal.resources.Resource$2.visit(Resource.java:105)
    at org.eclipse.core.internal.resources.Resource$1.visitElement(Resource.java:57)
    at org.eclipse.core.internal.watson.ElementTreeIterator.doIteration(ElementTreeIterator.java:81)
    at org.eclipse.core.internal.watson.ElementTreeIterator.doIteration(ElementTreeIterator.java:85)
    at org.eclipse.core.internal.watson.ElementTreeIterator.doIteration(ElementTreeIterator.java:85)
    at org.eclipse.core.internal.watson.ElementTreeIterator.iterate(ElementTreeIterator.java:126)
    at org.eclipse.core.internal.resources.Resource.accept(Resource.java:67)
    at org.eclipse.core.internal.resources.Resource.accept(Resource.java:103)
    at org.eclipse.core.internal.resources.Resource.accept(Resource.java:87)
    at org.atl.eclipse.adt.builder.AtlBuilder.fullBuild(AtlBuilder.java:43)
    at org.atl.eclipse.adt.builder.AtlBuilder$1.run(AtlBuilder.java:32)
    at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1737)
    at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1719)
    at org.atl.eclipse.adt.builder.AtlBuilder.run(AtlBuilder.java:53)
    at org.atl.eclipse.adt.builder.AtlBuilder.build(AtlBuilder.java:35)
    at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:603)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:167)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:201)
    at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:230)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:233)
    at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:252)
    at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:285)
    at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:145)
    at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:208)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:58)
****** BEGIN Stack Trace
    message: ERROR: could not find operation allInstancesFrom on MOF!EClass having supertypes: [MOF!EClassifier, OclType, OclAny] (including Java operations)
A.main() : ??#17 null
    local variables = {self=ATL_WFR : ASMModule}
    local stack = []
A.__matcher__() : ??#6 null
    local variables = {self=ATL_WFR : ASMModule}
    local stack = []
A.__matchFreeVariableIsSelfOrThisModule() : ??#9 null
    local variables = {self=ATL_WFR : ASMModule}
    local stack = [ATL!VariableDeclaration, Sequence {}]
****** END Stack Trace
Trying to continue execution despite the error.
****** BEGIN Stack Trace
    message: ERROR: could not find operation union on MOF!EClass having supertypes: [MOF!EClassifier, OclType, OclAny] (including Java operations)
A.main() : ??#17 null
    local variables = {self=ATL_WFR : ASMModule}
    local stack = []
A.__matcher__() : ??#6 null
    local variables = {self=ATL_WFR : ASMModule}
    local stack = []
A.__matchFreeVariableIsSelfOrThisModule() : ??#10 null
    local variables = {self=ATL_WFR : ASMModule}
    local stack = []
****** END Stack Trace
Trying to continue execution despite the error.
****** BEGIN Stack Trace
    exception:
java.util.EmptyStackException
    at java.util.Stack.peek(Unknown Source)
    at java.util.Stack.pop(Unknown Source)
    at org.atl.engine.vm.ASMStackFrame.pop(ASMStackFrame.java:90)
    at org.atl.engine.vm.ASMOperation.realExec(ASMOperation.java:184)
    at org.atl.engine.vm.ASMOperation.exec(ASMOperation.java:155)
    at org.atl.engine.vm.nativelib.ASMOclAny.invoke(ASMOclAny.java:60)
    at org.atl.engine.vm.nativelib.ASMOclAny.invoke(ASMOclAny.java:50)
    at org.atl.engine.vm.ASMOperation.realExec(ASMOperation.java:214)
    at org.atl.engine.vm.ASMOperation.exec(ASMOperation.java:155)
    at org.atl.engine.vm.nativelib.ASMOclAny.invoke(ASMOclAny.java:60)
    at org.atl.engine.vm.nativelib.ASMOclAny.invoke(ASMOclAny.java:50)
    at org.atl.engine.vm.ASMOperation.realExec(ASMOperation.java:214)
    at org.atl.engine.vm.ASMOperation.exec(ASMOperation.java:155)
    at org.atl.engine.vm.ASMInterpreter.(ASMInterpreter.java:276)
    at org.atl.eclipse.engine.AtlLauncher.launch(AtlLauncher.java:136)
    at org.atl.eclipse.engine.AtlLauncher.launch(AtlLauncher.java:94)
    at org.atl.eclipse.engine.AtlLauncher.launch(AtlLauncher.java:68)
    at org.atl.eclipse.engine.AtlLauncher.launch(AtlLauncher.java:60)
    at org.atl.eclipse.engine.AtlLauncher.launch(AtlLauncher.java:56)
    at org.atl.eclipse.engine.Atl2004Compiler.compile(Atl2004Compiler.java:91)
    at org.atl.eclipse.engine.AtlCompiler.compile(AtlCompiler.java:75)
    at org.atl.eclipse.adt.builder.AtlBuildVisitor.visit(AtlBuildVisitor.java:71)
    at org.eclipse.core.internal.resources.Resource$2.visit(Resource.java:105)
    at org.eclipse.core.internal.resources.Resource$1.visitElement(Resource.java:57)
    at org.eclipse.core.internal.watson.ElementTreeIterator.doIteration(ElementTreeIterator.java:81)
    at org.eclipse.core.internal.watson.ElementTreeIterator.doIteration(ElementTreeIterator.java:85)
    at org.eclipse.core.internal.watson.ElementTreeIterator.doIteration(ElementTreeIterator.java:85)
    at org.eclipse.core.internal.watson.ElementTreeIterator.iterate(ElementTreeIterator.java:126)
    at org.eclipse.core.internal.resources.Resource.accept(Resource.java:67)
    at org.eclipse.core.internal.resources.Resource.accept(Resource.java:103)
    at org.eclipse.core.internal.resources.Resource.accept(Resource.java:87)
    at org.atl.eclipse.adt.builder.AtlBuilder.fullBuild(AtlBuilder.java:43)
    at org.atl.eclipse.adt.builder.AtlBuilder$1.run(AtlBuilder.java:32)
    at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1737)
    at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1719)
    at org.atl.eclipse.adt.builder.AtlBuilder.run(AtlBuilder.java:53)
    at org.atl.eclipse.adt.builder.AtlBuilder.build(AtlBuilder.java:35)
    at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:603)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:167)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:201)
    at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:230)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:233)
    at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:252)
    at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:285)
    at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:145)
    at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:208)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:58)
A.main() : ??#17 null
    local variables = {self=ATL_WFR : ASMModule}
    local stack = []
A.__matcher__() : ??#6 null
    local variables = {self=ATL_WFR : ASMModule}
    local stack = []
A.__matchFreeVariableIsSelfOrThisModule() : ??#11 null
    local variables = {self=ATL_WFR : ASMModule}
    local stack = []
****** END Stack Trace
Trying to continue execution despite the error.
Warning, could not find mathing node for Void in mode

-----------

I think the metamodels I got aren't conforming to MOF you suggested me, because the elements name aren't found in the metametamodel. I also tryed to use the option "Is metamodel" in the ATL Eclipse 3.4 run configuration, but it doesn't work.

I really don't know what to do :(
Any help?

Thanks a lot.
Andreza

2009/11/18 Ed Willink <ed@xxxxxxxxxxxxx>

Hi Andreza

http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.m2m/org.eclipse.qvt.declarative/plugins/org.eclipse.qvt/model/ecore/EMOF.ecore?root=Modeling_Project&view=co

or

http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.m2m/org.eclipse.qvt.declarative/plugins/org.eclipse.qvt/model/emof/EMOF.xml?root=Modeling_Project&view=co

Ed

Andreza Vieira wrote:
Hi Ed Willink,

Thanks for your answer.
I have been looking for the plugin you suggested, but I couldn't find it. I tryed to use the combobox "Is metametamodel" in the ATL Eclipse run configuration, but it doesn't work :(
I just want the MOF Metamodel (metametamodel) XMI, because in my case the models are metamodels. So, the metamodel must be the metametamodel.
Thanks a lot.

Reguards

2009/11/11 Ed Willink <ed@xxxxxxxxxxxxx>

Hi Andrez

The org.eclipse.qvt plugin for the M2M/QVT Declarative project has a variety of Ecore, and EMOF formats of a variety of OMG models that
form part of QVT. MOF is one of them.

Regards

Ed Willink

Andreza Vieira wrote:

Hello,

Please, I want to do metamodel to metamodel ATL transformations (any kind of metamodels). So, I need to find the metametamodel, that is, MOF. Does anyone knows where can I find the MOF metametamodel?
Thanks a lot.

--
Andreza Vieira

------------------------------------------------------------------------

_______________________________________________
m2m-dev mailing list
m2m-dev@xxxxxxxxxxx
https://dev.eclipse.org/mailman/listinfo/m2m-dev

_______________________________________________
m2m-dev mailing list
m2m-dev@xxxxxxxxxxx
https://dev.eclipse.org/mailman/listinfo/m2m-dev

--
Andreza Vieira
_______________________________________________
m2m-dev mailing list
m2m-dev@xxxxxxxxxxx
https://dev.eclipse.org/mailman/listinfo/m2m-dev
  
_______________________________________________
m2m-dev mailing list
m2m-dev@xxxxxxxxxxx
https://dev.eclipse.org/mailman/listinfo/m2m-dev

--
Andreza Vieira

Re: [m2m-dev] MOF metametamodel

ed@xxxxxxx (Ed Willink) — Wed, 18 Nov 2009 05:44:05 GMT

Hi Andreza

http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.m2m/org.eclipse.qvt.declarative/plugins/org.eclipse.qvt/model/ecore/EMOF.ecore?root=Modeling_Project&view=co

or

http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.m2m/org.eclipse.qvt.declarative/plugins/org.eclipse.qvt/model/emof/EMOF.xml?root=Modeling_Project&view=co

Ed

Andreza Vieira wrote:

Hi Ed Willink,

Thanks for your answer.
I have been looking for the plugin you suggested, but I couldn't find it. I tryed to use the combobox "Is metametamodel" in the ATL Eclipse run configuration, but it doesn't work :(
I just want the MOF Metamodel (metametamodel) XMI, because in my case the models are metamodels. So, the metamodel must be the metametamodel.
Thanks a lot.

Reguards

2009/11/11 Ed Willink <ed@xxxxxxxxxxxxx>

Hi Andrez

The org.eclipse.qvt plugin for the M2M/QVT Declarative project has a variety of Ecore, and EMOF formats of a variety of OMG models that
form part of QVT. MOF is one of them.

Regards

Ed Willink

Andreza Vieira wrote:

Hello,

Please, I want to do metamodel to metamodel ATL transformations (any kind of metamodels). So, I need to find the metametamodel, that is, MOF. Does anyone knows where can I find the MOF metametamodel?
Thanks a lot.

--
Andreza Vieira

------------------------------------------------------------------------

_______________________________________________
m2m-dev mailing list
m2m-dev@xxxxxxxxxxx
https://dev.eclipse.org/mailman/listinfo/m2m-dev

_______________________________________________
m2m-dev mailing list
m2m-dev@xxxxxxxxxxx
https://dev.eclipse.org/mailman/listinfo/m2m-dev

--
Andreza Vieira
_______________________________________________
m2m-dev mailing list
m2m-dev@xxxxxxxxxxx
https://dev.eclipse.org/mailman/listinfo/m2m-dev
  

Re: [m2m-dev] MOF metametamodel

andreza.ufcg@xxxxxxx (Andreza Vieira) — Tue, 17 Nov 2009 17:41:39 GMT

Hi Ed Willink,

Thanks for your answer.
I have been looking for the plugin you suggested, but I couldn't find it. I tryed to use the combobox "Is metametamodel" in the ATL Eclipse run configuration, but it doesn't work :(
I just want the MOF Metamodel (metametamodel) XMI, because in my case the models are metamodels. So, the metamodel must be the metametamodel.
Thanks a lot.

Reguards

2009/11/11 Ed Willink <ed@xxxxxxxxxxxxx>

Hi Andrez

The org.eclipse.qvt plugin for the M2M/QVT Declarative project has a variety of Ecore, and EMOF formats of a variety of OMG models that
form part of QVT. MOF is one of them.

Regards

Ed Willink

Andreza Vieira wrote:

Hello,

Please, I want to do metamodel to metamodel ATL transformations (any kind of metamodels). So, I need to find the metametamodel, that is, MOF. Does anyone knows where can I find the MOF metametamodel?
Thanks a lot.

--
Andreza Vieira

------------------------------------------------------------------------

_______________________________________________
m2m-dev mailing list
m2m-dev@xxxxxxxxxxx
https://dev.eclipse.org/mailman/listinfo/m2m-dev

_______________________________________________
m2m-dev mailing list
m2m-dev@xxxxxxxxxxx
https://dev.eclipse.org/mailman/listinfo/m2m-dev

--
Andreza Vieira

Re: [m2m-dev] [QVTd] Leader required

jonathan.musset@xxxxxxx (Jonathan MUSSET) — Tue, 17 Nov 2009 14:20:28 GMT

Ed, You probably know that Quentin Glineur moved from "Obeo" to the "Montages" compagny at the beginning of the year From the Obeo side we don't want to put more resources on the QVT-R project To be completely clear, Mickael and William are commiters in this project but they are not active at the moment They both work on the ATL project, but not on QVT-R I think that they should give up their committer status on the QVT-R component (I'm sure for William but I'm waiting for an answer of Mickael) William, Mickael, I invite you to send an email to emo@xxxxxxxxxxx (CCing modeling-pmc@xxxxxxxxxxx) with the statement that you are giving up your committer status on the "QVT-R" project Be careful, because QVT-R and ATL are both M2M components... Now depending on you Ed ;-) Good luck for the following of the QVT-R project, you'll probably need other commiters ;-) Cheers,

Jonathan

Ed Willink a écrit :

Hi Frederic
Following the unfortunate need for Quentin Glineur to resign his committership, QVT Declarative has no project leader.

I am the only active committer on the project and am happy to take on the project leader role.

I have plans to realise the missing execution aspect of QVTd by realising a chain of transformations from QVTr to QVTc to QVTu using QVTo for final Transformation Virtual Machine code generation. (QVTu is a unidirectional suubset of QVTu).
If anyone is interested in joining this activity, please let me know.
    Regards
      Ed Willink
_______________________________________________
m2m-dev mailing list
m2m-dev@xxxxxxxxxxx
https://dev.eclipse.org/mailman/listinfo/m2m-dev

begin:vcard
fn:Jonathan MUSSET
n:MUSSET;Jonathan
org:Obeo - Model Driven Company
email;internet:jonathan.musset@xxxxxxx
title:Directeur Technique
tel;work:02 51 13 54 18
version:2.1
end:vcard

[m2m-dev] [QVTd] Leader required

ed@xxxxxxx (Ed Willink) — Mon, 16 Nov 2009 21:20:12 GMT

Hi Frederic

Following the unfortunate need for Quentin Glineur to resign his committership, QVT Declarative has no project leader.

I am the only active committer on the project and am happy to take on the project leader role.

I have plans to realise the missing execution aspect of QVTd by realising a chain of transformations from QVTr to QVTc to QVTu using QVTo for final Transformation Virtual Machine code generation. (QVTu is a unidirectional suubset of QVTu).

If anyone is interested in joining this activity, please let me know.

    Regards

      Ed Willink

Re: [m2m-dev] MOF metametamodel

ed@xxxxxxx (Ed Willink) — Wed, 11 Nov 2009 19:12:15 GMT

Hi Andrez

The org.eclipse.qvt plugin for the M2M/QVT Declarative project has a variety of Ecore, and EMOF formats of a variety of OMG models that form part of QVT. MOF is one of them.

	Regards

		Ed Willink

Andreza Vieira wrote:

Hello,
Please, I want to do metamodel to metamodel ATL transformations (any kind of metamodels). So, I need to find the metametamodel, that is, MOF. Does anyone knows where can I find the MOF metametamodel? Thanks a lot.
--
Andreza Vieira
------------------------------------------------------------------------
_______________________________________________
m2m-dev mailing list
m2m-dev@xxxxxxxxxxx
https://dev.eclipse.org/mailman/listinfo/m2m-dev

[m2m-dev] MOF metametamodel

andreza.ufcg@xxxxxxx (Andreza Vieira) — Wed, 11 Nov 2009 13:11:53 GMT

Hello,

Please, I want to do metamodel to metamodel ATL transformations (any kind of metamodels). So, I need to find the metametamodel, that is, MOF. Does anyone knows where can I find the MOF metametamodel?
Thanks a lot.

--
Andreza Vieira

[m2m-dev] Project meta data is out of date for modeling.m2m

emo@xxxxxxx (portal on behalf of emo) — Thu, 05 Nov 2009 05:00:14 GMT

Frederic,
Projects are required to keep meta data up to date using the MyFoundation
Portal (http://portal.eclipse.org/).  The following problems were found
with this project's meta-data:

* There is no next/future release of this project. All Eclipse projects
must have a "next release" planned and scheduled.

[m2m-dev] Xtend

stefan.dimov@xxxxxxx (Dimov, Stefan) — Thu, 15 Oct 2009 13:44:39 GMT

Hi,

I'm new to this project and I'm making a research for the capabilities of the Xtend language. Seems that there are not enough examples in I-net (or at least I can't find them). I'm particularly interested in few things:

1. I've tried to make a working example, which merges two models into one, but I didn't succeed. Could anybody point me to a working example?

2. I've tried to understand, when you create a new model from one or more existing models, is it possible for the new model to memorize the mapping between new model's elements to the old elements of the source model(s).

3. If I'm merging two models, which have similar elements (for example - one represented by XML and one - by java annotated classes, but describing similar elements) is it possible to describe through the means of Xtend, which element of some of the old models overrides the similar element in the other model?

4. Is it possible (relatively) easy to create a read/write model from read-only model(s)

I'll be glad to have some more detailed doc links and especially examples, which cover the above questions!

10x in advance!

Stefan Dimov