Pushlet Demos

These show some examples of live events pushed by the server. In each example we subscribe to different subjects. Try the "ping" example first to see if Pushlets work for your browser. The last column contains links to the source code of the examples.

Name	Description	Run	Source
Ping	Test if Pushlets work for your browser/platform. You can test if either the "stream" (default) or "pull" mode works.	run	ping.html pingok.jsp Common JS pushlet lib: js-pushlet-client.js js-pushlet-net.html Common AJAX pushlet lib (XmlHttpRequest) ajax-pushlet-client.js
Basics	Illustrates page embedding, control events with subscribe/unsubscribe etc	run	raw.html
Basics with AJAX	Same as Basics but using AJAX client.	run	raw-ajax.html ajax-pushlet-client.js
Temperature (Basic)	Basic monitor of the temperatures in The Netherlands.	run	nl-temperature.html
Temperature (Map)	Graphic display of the temperatures in The Netherlands using a graphic map with superimposed layers that are dynamically updated through the pushlet.	run	nl-weather.html
Stocks	The following example illustrates how stock rates can be pushed from the server. Note: these are faked rates. A real application would use something like a Reuters live stockfeed at the back-end.	run	aex.html TestEventPullSources.java
Chat	Here you are able to publish text events to the server who will dispatch them to others who have joined the chat. Try it with more users to see the effect. This is the AJAX version.	run	enter.html chat.html contents.html ajax-pushlet-client.js
AJAX	Proof of concept to use AJAX technology through the XMLHttpRequest	run	ajax-2.html ajax-pushlet-client.js
Flash	Simple Macromedia Flash client. For now in "pull" mode with strict XML.	run	.fla source in client/flash in distro 2.0.1+
WCQ - ICQ/MSN-like IM app	This example illustrates using both publishing and subscribing. Presence is completely arranged by the clients who publish each other regular 'presence' events. There is no state on the server. When a user is entering/leaving the list a short sound is played. You can thus minimize the window and hear when users are entering/leaving. By clicking on a user you may send him/her with a short message.	run	wcq.html wcqjoin.html wcqalert.html
System Resources	Monitor aspects of the server's JVM.	run	system.html
Application Monitoring	Monitor status of the pushlets themselves	run	pushlet-status.html
Web Presentation	Automatically present webpages to multiple users. Normally this is done using a Teacher and Student roles as I use in classrooms. This is now emulated. Just sit back and relax. See also www.justobjects.org/cowcatcher.	run	webpres-student.html webpres-student-content.html
Web Presentation2	Here a teacher pushes slides to multiple students. The student version of the HTML/pushet is the same as above. See also www.justobjects.org/cowcatcher. The trick here is that a JavaScript timer loop in teacher top frame is listening for URL changes in the teacher content iframe. If it detects a URL switch it calls p_publish() to publish the current URL.	teacher student	webpres-teacher.html webpres-teacher-content.html webpres-student.html webpres-student-content.html
Catch all	This busy page merely subscribes to all events coming from the server. This is done by subscribing to the subject "/".	run	all.html
Java Applet client	The Pushlet Java client API (PushletClient.java) can be used in Java applications or Applets to control all services of a Pushlet session, including publishing events. Here is a very basic example of a Java Applet displaying temperature events.	run	pushlet-applet.html PushletApplet.java PushletClient.java PushletClientListener.java
Java Application client	This is another example of the Puhslet client Java API. The PushletPingApplication publishes a small event to the server every few seconds. At the same time that client is receiving that event within the same Pushlet session.		PushletPingApplication.java PushletClient.java PushletClientListener.java