Returns the maximum stream format version for RMI/IDL custom value types that is supported by this ValueHandler object.

  Returns the maximum stream format version for
RMI/IDL custom value types that is supported
by this ValueHandler object. The ValueHandler
object must support the returned stream format version and
all lower versions.

An ORB may use this value to include in a standard
IOR tagged component or service context to indicate to other
ORBs the maximum RMI-IIOP stream format that it
supports. If not included, the default for GIOP 1.2
is stream format version 1, and stream format version
2 for GIOP 1.3 and higher.

  Allows the ORB to pass the stream format version for RMI/IDL custom value types.

  Allows the ORB to pass the stream format
version for RMI/IDL custom value types. If the ORB
calls this method, it must pass a stream format version
between 1 and the value returned by the
getMaximumStreamFormatVersion method inclusive,
or else a BAD_PARAM exception with standard minor code
will be thrown.

If the ORB calls the older ValueHandler.writeValue(OutputStream,
Serializable) method, stream format version 1 is implied.

The ORB output stream passed to the ValueHandlerMultiFormat.writeValue
method must implement the ValueOutputStream interface, and the
ORB input stream passed to the ValueHandler.readValue method must
implement the ValueInputStream interface.