ConstructionType tmpType = (ConstructionType) presentationModel
.getBufferedValue(AbstractModel.PROPERTY_OBJECT);
ConstructionType clonedType = ConstructionTypeModel
.cloneConstructionType(tmpType);
constructionTreeTableModel = new ConstructionTreeTableModel(clonedType);
treeTable = new JXTreeTable(constructionTreeTableModel);
return treeTable;
}