PreCache NetInjector Documentation Center : PreCache NetInjector Application Development

Common Cases, Publication — Java

Common Cases, Publication — Java

Notifications with predefined attributes

Notifications with discretionary attributes

Common Cases, publication code — Java

Common Cases, publication code — Java

— the full code sample for the Common Cases tutorial

The sample for this tutorial presented more examples of setting attributes. While the process of publication is the same as in Basic Case, Publication — Java, we have added statements for

• Notifications with predefined attributes and for
• Notifications with discretionary attributes.

import com.precache.event.*;

import java.io.*;

public class pub2

{

      static

      {

            System.loadLibrary("event-j");

      }

      public static void main(String argv[])

      {

            Proxy p;

            Notification n1,n2;

            try

            {

//Create a proxy for the channel and client.

                  p = new Proxy(40,3002);

//Create a notification.

                  n1 = new Notification(p,"Sample.Chat");

//Set the values for the predefined attributes.

                  n1.setPredefinedAttr("Message",
                        "Make this world a better place!");

                  n1.setPredefinedAttr("UserName","Jane");

                  n1.setPredefinedAttr("Age",10);

                  n1.setPredefinedAttr("Gender",'F');

//Publish the notification.

                  p.publish(n1);

//Create a second notification.

                  n2 = new Notification(p,"Sample.Chat");

//Set the values for the predefined attributes.

                  n2.setPredefinedAttr("Message",
                        "Dolly Parton, I love you!");

                  n2.setPredefinedAttr("UserName",
                        "Laurel");

                  n2.setPredefinedAttr("Age",12);

                  n2.setPredefinedAttr("Gender",'f');

//Set the value of a discretionary attribute.

                  n2.addDiscretionaryAttr("Interest",
                        "Country Music");

//Publish the second notification.

                  p.publish(n2);

            }

            catch (Exception e)

            {

                  e.printStackTrace();

            }

      }

}

In the final tutorial chapter, Common Cases, Subscription — Java, we will build the participating subscriber's application.