protected void _createChildren(DocumentRootNode parentNode, XtendFile xtendFile) {
   if (xtendFile.getPackage() != null)
     createEStructuralFeatureNode(
         parentNode,
         xtendFile,
         Xtend2Package.Literals.XTEND_FILE__PACKAGE,
         images.forPackage(),
         xtendFile.getPackage(),
         true);
   if (!xtendFile.getImports().isEmpty())
     createEStructuralFeatureNode(
         parentNode,
         xtendFile,
         Xtend2Package.Literals.XTEND_FILE__IMPORTS,
         images.forImportContainer(),
         "import declarations",
         false);
   if (xtendFile.getXtendClass() != null) createEObjectNode(parentNode, xtendFile.getXtendClass());
 }