A class representing a mutable reference to an array of bytes and
an offset and length within that array.
IIOByteBuffer
is used by
ImageInputStream
to supply a sequence of bytes
to the caller, possibly with fewer copies than using the conventional
read
methods that take a user-supplied byte array.
The byte array referenced by an IIOByteBuffer
will
generally be part of an internal data structure belonging to an
ImageReader
implementation; its contents should be
considered read-only and must not be modified.