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</o:shapelayout></xml><![endif]--></head><body lang=DE link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Hello everyone,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I do face an exception when compiling a GReAT transformation which contains a meta model with nested libraries and namespaces respectively. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>First, the exception message:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>#--------------------------------------------------#<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>GR Engine v1.7.7.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Copyright (c) 2000-2007 ISIS, Vanderbilt University<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Engine Started. Loading relevent files...<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Exception: Could not initiliaze Udm Uml Diagram 'MetaLevel3' from GME paradigm: 'MetaLevel3': Cannot resolve association<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> 'NS_Level2::NS_Level1::Level1_Connection' with rolenames 'srcLevel2_Connection' 'dstLevel2_Connection'<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>#--------------------------------------------------#<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Due to modularity, I nested three meta models as following (attached as libraries):<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>#--------------------------------------------------#<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>MetaLevel3<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>--MetaLevel2 (namespace: NS_Level2)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>----MetaLevel1 (namespace: NS_Level1) (does contain a <<Connection>>)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>#--------------------------------------------------#<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Whereas MetaLevel2 and 3 are an extension to the next level below. For clarity, I built up a small example (GME 13.8.28.1949): </span><a href="http://www.ils.uni-stuttgart.de/nested_libraries.zip"><span lang=EN-US>www.ils.uni-stuttgart.de/nested_libraries.zip</span></a><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>The compilation is successful except if MetaLevel1 contains a <<Connection>> object.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>On the other side, if MetaLevel2 is attached to MetaLevel3 without defining a namespace for it and MetaLevel1 still contains a <<Connection>> object the compiler runs without trouble.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Summing up:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>MetaLevel3 with 'NS_Level1::Level1_Connection'<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>==> works fine<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>MetaLevel3 with 'NS_Level2::NS_Level1::Level1_Connection'<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>==> seems to violate some restrictions<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>So my question is:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Is it even possible to use nested meta models and <<Connection>> objects with more than one namespace level?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>If my descriptions are two vague, please let me know.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal>Best Regards<o:p></o:p></p><p class=MsoNormal>Tim<o:p></o:p></p></div></body></html>