Class Tail

  • All Implemented Interfaces:
    CSProcess

    public final class Tail
    extends Object
    implements CSProcess
    The output stream is the tail of its input stream.

    Process Diagram

    Description

    The first Object (i.e. head) of its input stream is not forwarded. The rest (i.e. tail) is copied through unchanged.

    Two inputs are needed before any output is produced but, thereafter, one output is produced for each input.

    Channel Protocols

    Input Channels
    in java.lang.Object The in Channel can accept data of any Class.
    Output Channels
    out java.lang.Object The out Channel will send data of the same type as that sent down the in Channel.

    Implementation Note

    The implementation uses an Identity process for the copy loop:
       public void run () {
         in.read ();                        // accept, but discard, the first item
         new Identity (in, out).run ();     // copy the rest of the stream
       }
     
    Author:
    P.H. Welch and P.D. Austin
    • Constructor Detail

      • Tail

        public Tail​(ChannelInput in,
                    ChannelOutput out)
        Construct a new Tail process with the input Channel in and the output Channel out.
        Parameters:
        in - the input Channel
        out - the output Channel
    • Method Detail

      • run

        public void run()
        The main body of this process.
        Specified by:
        run in interface CSProcess