assertNull(extractor.getPrimaryKeyFormat());
assertSame(indexKeyFormat, extractor.getIndexKeyFormat());
MarshalledObject val = new MarshalledObject("abc", "primary",
"index1", "index2");
binding.objectToValue(val, buffer);
binding.objectToKey(val, keyBuffer);
extractor.extractIndexKey(keyBuffer, buffer, indexKeyBuffer);
TupleInput in = indexKeyFormat.dataToInput(indexKeyBuffer);
assertEquals("index1", in.readString());