Ajax World Fall08
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Transcript of Ajax World Fall08
![Page 1: Ajax World Fall08](https://reader033.fdocuments.in/reader033/viewer/2022060109/5558e9e1d8b42ab8168b5048/html5/thumbnails/1.jpg)
ICESOFT TECHNOLOGIES INC. www.icefaces.org
Steve Maryka, CTOICEsoft Technologies, Inc.
Enterprise Case Studies ForAjax Push
Ryan Moquin,Senior Software Engineer
Felipe Leme,Principal Engineer
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ICESOFT TECHNOLOGIES INC. www.icefaces.org
ICEfaces is…
Path of least resistance for Java developers
ICEfaces is an Ajax framework that allows you to easily createserver-centric Rich Internet Applications (RIA) in pure Java.
• Open source
• Standards-based
• Extends JSF
• Develop RIAs in pure Java, not JavaScript
• Leverages existing Java ecosystem– Use existing IDE
– Deploy to any App Server
– Combine with leading Java frameworks
– Enrich existing JSP applications
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ICESOFT TECHNOLOGIES INC. www.icefaces.org
Java EE Architecture
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ICESOFT TECHNOLOGIES INC. www.icefaces.org
Java EE Architecture + ICEfaces
Standards-based Java EE/JSF Development Model
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ICESOFT TECHNOLOGIES INC. www.icefaces.org
Direct-to-DOM (D2D)
Direct-to-DOM Delivers Automatic Ajax
DOM(Server)
DOM(Client)
Incremental DOM Updates
Ajax Bridge
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ICESOFT TECHNOLOGIES INC. www.icefaces.org
Golden Gate Demo
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ICESOFT TECHNOLOGIES INC. www.icefaces.org
• Normal HTTP Interaction Is User-initiated
• Push Requires Inversion of the HTTP Protocol
HTTP And The Asynchronous Web
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10/10/08 Proprietary 8ICESOFT TECHNOLOGIES INC. www.icefaces.org
ICEfaces Push Mechanism
DOM
JSF App.
AJAXBridge
DOM
AJAXBridge
Server Browser
ApplicationState Change2
DOM Update3
1 Asynchronous XMLHttpRequest
4 Response (contains incremental update)
6Another Request
5
DOM UpdatesProcessed
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ICESOFT TECHNOLOGIES INC. www.icefaces.org
ICEfaces Application
Render Hub
• Configure Render Hubmanaged bean
ICEfaces Makes Push Simple
• Register and populaterender groups
• Framework does the rest
In ProgressIn ProgressWaiting…Waiting…
Push
Push
Push
• Request a render fromapplication logic
…requestRender()
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ICESOFT TECHNOLOGIES INC. www.icefaces.org
Scalability Of Ajax Push
• Long-lived Connections per Client– Leads to thread exhaustion under standard Servlet model
• Standards Lagging– JSR 315 addresses asynchronous communications
• Open Source Solutions Exist– Jetty 6 Continuations– Tomcat 6 Comet Processor– Glassfish Grizzly– ICEfaces Asynchronous HTTP Server
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ICESOFT TECHNOLOGIES INC. www.icefaces.org
C3 Demo
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ICESOFT TECHNOLOGIES INC. www.icefaces.org
What Are The Implications Of Mobile Ajax?
• Resource-constrained Devices– Smaller footprint browser implementations– Limited memory for client-based applications
• Limited Network Bandwidth– Application startup times
• Network Latency– Application startup times– Server interaction delays
• UI Paradigm Shift– Small real estate display– Alternate input devices
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ICESOFT TECHNOLOGIES INC. www.icefaces.org
Advantages Of ICEfaces For Mobile
• Resource-constrained Devices– Lightweight client-side implementation
• Limited Network Bandwidth– Small JavaScript means shorter load times– Minimal incremental updates
• Network Latency– Ajax Push reduces hands-on user interaction
• Security– Inherit Java EE Security Architecture
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ICESOFT TECHNOLOGIES INC. www.icefaces.org
incidentOS Demo
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ICESOFT TECHNOLOGIES INC. www.icefaces.org
• Markup Aggregation WithinPortal Container– Standard JSF support
• Ajax Interactions BypassPortal Container– Eliminate Full-page Refresh
• JavaScript Coexistent WithPortal Container– Vendor-specific
• Multiple Portals Supported
ICEfaces Portal Integration
Portal
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ICESOFT TECHNOLOGIES INC. www.icefaces.org
• Browser Connection Limits– Browser-side Connection Sharing
• Multiple Web Applications– Server-side Connection Sharing
PortletA View
PortletB View
PortletC View
AJAXBridge
Non-BlockingConnection
Portlet B
Portlet A
AHS
BlockingConnection
Non-BlockingConnection
Portlet C
JMS
AJAXBridge
AJAXBridge
Multi App/ Multi Portlet
Ajax Push With Portals
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ICESOFT TECHNOLOGIES INC. www.icefaces.org
Stephen Maryka, CTOICEsoft Technologies [email protected]
Join us at: www.icefaces.orgOr come visit us at our booth.
Q and A