A channel that can read bytes into a sequence of buffers.
A scattering read operation reads, in a single invocation, a
sequence of bytes into one or more of a given sequence of buffers.
Scattering reads are often useful when implementing network protocols or
file formats that, for example, group data into segments consisting of one
or more fixed-length headers followed by a variable-length body. Similar
gathering write operations are defined in the GatheringByteChannel interface.
extends