Its really exciting to witness how eclipse maturing every year and providing wider set of tools.
Eclipse API helped me to build tools for heterogeneous domains from Database, BPM , Rule Engine, Mashup to Service Component Archoitecture.
Now e4 empowers me to satisfy the growing demand from my clients for web-enabled eclipse platforms in the domains of mashup and soa.
e4 in a nutshell not only relieves you from IDE-ness and typical desktop-centric experiences; but at the same time simplifies UI-development (xml model based widget declaration), supports all types of dynamic languages and RIA (no longer just a Java-rich-client) and finally dynamic deployment on clouds !
Huh ! Its so heartening to see the termonology - 'Eclipse Application Services' - in a world turning fast into a Service-only Delivery-channel !
EMF was already REST-compliant and Equinox the perfect OSGi guy !
So what remains is re-organizing eclipse sdk frameworks into well defined RESTful interfaces to make eclipse a set of On-demand offerings !
I hope it will unveil the eclipse super-force and be the strongest weapon in developers armoury.
e4 will provide much-needed upliftment for Eclipse as a common platform for a set of diverse frameworks.
(1) XWT - quickfire design and customization with consistent rendering across platforms and browsers.
So you define your ui-controls (SWT/FLEX/AIR etc.) in ecore model !
e4 will take care of the rest i.e. - Builders will build the controls, bind widgets to layouts and finally javascript-event handlers will be generated to manipulate EMF models (the same way html dom is manipulated in web browser)
Well sounds similar to GWT ! .. but more comforting to hear that we handle EMF model at the end of the day :-)
(2) RIA - css support and seamless integration of java-script i.e. support/integrate applications written in java-scripts by compiling them using e4 API dynamically.
e4 provides a Javascript Framework - a standalone bundle in OSGi instance.
JavaScript bundles communicates thru JSON manifest files ! Huh ! .. I am great a fan of JSON :-) ..
(2) PAAS - what makes e4 so special is its service-oriented programming model based on OSGi. plug-ins can be reused outside a specific nenviromnet (a limitation in current desktop editions).
No more tight-coupling with Platform, WorkBench, IDE, ResourcesPlugin and JavaCore.
In current eclipse architecture, only OSGi Sevice API and Extension Registry API use - 'Sevice Programming Model' - with service locator pattern.
Now in e4 incarnation, what sounds most promising is the SOA implementaion for all types of eclipse frameworks with the full-fledged support for 'Dependency Injection'
- that means - if I am a client of Widget-service, i don't need to be aware of the service producer and service broker. Just simply specifying annotations (injection points) widget-services can be accessed and consumed !
Here is a nice blog to get your hand dirty : http://www.vogella.de/blog/2009/08/12/eclipse-e4/
e4 is going to be the single most important thing in an eclipse dedeloper's life.
Well ! Lets all try out e4 today to unleash the power with eclipse !
Reference :
http://live.eclipse.org/node/724
http://www.eclipse.org/e4/resources/e4-whitepaper-20090729.pdf
http://wiki.eclipse.org/E4
http://www.eclipse.org/resources/?sort=date&category=e4
http://live.eclipse.org/node/782
http://live.eclipse.org/node/782
http://live.eclipse.org/node/791
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