private TransformationMetadata exampleTransformationMetadata()
throws TranslatorException {
Map<String, Datatype> datatypes = new HashMap<String, Datatype>();
datatypes.put(DataTypeManager.DefaultDataTypes.STRING, new Datatype());
MetadataFactory mf = new MetadataFactory("x", datatypes, new Properties()); //$NON-NLS-1$
mf.addProcedure("y"); //$NON-NLS-1$
Table t = mf.addTable("foo");
mf.addColumn("col", DataTypeManager.DefaultDataTypes.STRING, t);
MetadataFactory mf1 = new MetadataFactory("x1", datatypes, new Properties()); //$NON-NLS-1$