A concrete key creator that works in conjunction with a
TupleTupleMarshalledBinding . This key creator works by calling the
methods of the
MarshalledTupleKeyEntity interface to create and
clear the index key.
Note that a marshalled tuple key creator is somewhat less efficient
than a non-marshalled key tuple creator because more conversions are
needed. A marshalled key creator must convert the entry to an object in
order to create the key, while an unmarshalled key creator does not.
Creates a tuple-tuple marshalled key creator.
Parameters: binding - is the binding used for the tuple-tuple entity. Parameters: keyName - is the key name passed to the MarshalledTupleKeyEntity.marshalSecondaryKey method to identify theindex key.