For keys, the object is a {@link com.ibm.websphere.objectgrid.plugins.io.dataobject.SerializedKey}, and for values, it's a {@link com.ibm.websphere.objectgrid.plugins.io.dataobject.SerializedValue}.
The ObjectMap API may also receive SerializedKey objects when using APIs that return keys such as an Index. SerializedValue object will be returned when using the CopyMode.COPY_TO_BYTES_RAW copy mode.
The DataSerializer can be used directly by applications that wish to access individual attributes of the serialized form of the entry directly. Use the {@link com.ibm.websphere.objectgrid.plugins.io.SerializerAccessor} interface to retrieve access to the DataSerializer and the default DataObjectContext.