Class Plus

  • All Implemented Interfaces:
    CSProcess

    public final class Plus
    extends Object
    implements CSProcess
    Sums two Integer streams to one stream.

    Process Diagram

        in0  ______
       -->--|      | out
        in1 | Plus |-->--
       -->--|______|
     

    Description

    This is a process with an infinite loop that waits for a Object of type Number to be sent down each of its input channels. The loop body adds them together and writes the result as a new Integer to its output channel.

    Channel Protocols

    Input Channels
    in1,in2 java.lang.Number Both Channels can accept data from any subclass of Number. It is possible to send Floats down one channel and Integers down the other. However all values will be converted to ints.
    Output Channels
    out java.lang.Integer The output will always be of type Integer.

    Example

    The following example shows how the use of this process in a small program. The program also uses some of the other building block processes. It generates two sequences of numbers, adds them together and prints them to the screen.
     import org.jcsp.lang.*;
     import org.jcsp.plugNplay.*;
     
     public class PlusExample {
     
       public static void main (String[] argv) {
     
         final One2OneChannel a = Channel.one2one ();
         final One2OneChannel b = Channel.one2one ();
         final One2OneChannel c = Channel.one2one ();
     
         new Parallel (
           new CSProcess[] {
             new Numbers (a.out ()),
             new Numbers (b.out ()),
             new Plus (a.in (), b.in (), c.out ()),
             new Printer (c.in (), "--> ", "\n")
           }
         ).run ();
     
       }
     
     }
     
    Author:
    P.H. Welch and P.D. Austin
    • Constructor Detail

      • Plus

        public Plus​(ChannelInput in1,
                    ChannelInput in2,
                    ChannelOutput out)
        Construct a new Plus process with the input Channels in1 and in2 and the output Channel out. The ordering of the Channels in1 and in2 make no difference to the functionality of this process.
        Parameters:
        in1 - The first input Channel
        in2 - The second input Channel
        out - The output Channel
    • Method Detail

      • run

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