I would skip EJB for now. You don't need to know about EJB to use FDS (note FDS was recently re-branded as LiveCycle Data Services ES 2.5 which is the latest release available). The concepts behind web apps in .NET are very close to the concepts of J2EE. There should be tons of web postings comparing J2EE to .NET. I'd start by getting familiar with simple J2EE deployments, that is start with a web application archive (WAR). These are essentially zip files that can be deployed on a J2EE server (like JBoss, or simply Tomcat). Get a feel for how the configuration looks under the /WEB-INF directory, how Servlets (and JSP pages) can handle HTTP GET/POST requests to produce dynamic web apps, go over the basic parts of the web.xml configuration file, work out how classes are found in the classpath, such as /WEB-INF/lib for *.jar libraries and /WEB-INF/classes for loose *.class files. Read up on web application contexts and how the WAR "context path" delineate the root URL of the application. You can use Flex's RemoteObject to call a plain old Java object, or use Producers/Consumers for real-time messaging to create publish/subscribe applications, or use DataService to get comprehensive management of distributed data graphs to build powerful collaborative applications/dashboards etc. Pete
________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of aaronvm707 Sent: Thursday, June 07, 2007 11:39 AM To: [email protected] Subject: [flexcoders] Re: Flex & Java, Where to Start? Thank you very much for all the info. I think the key word I was looking for was EJB. Is this what I will develop in order to start using Flex Data Services? Any suggestions on the server software needed to run EJB & J2EE? Again I am moving from a Microsoft, .net, IIS environment so I am completly new to all this. Thanks Aaron --- In [email protected] <mailto:flexcoders%40yahoogroups.com> , "simonjpalmer" <[EMAIL PROTECTED]> wrote: > > Sun has a very comprehensive online documentation of the Java language. > > This is a good book if you are a seasoned developer and just wanting > to pick up Java "Java In A Nutshell" by David Flanagan, O'Reilly. > > Another really good book is "Just Java 2" by Peter van der Linden, Sun > Microsystems Press. I learnt Java from these (C++ background) and I > recommend both. > > There aren't really variations of Java itself, so a basic grounding in > the language is something that you can use whatever you end up doing. > However there are lots of design and coding patterns around Java > which give high productivity, especially when using Java to write > server software, which is probably what you mean by Java as it relates > to Flex. Java doesn't specifically relate to flex or vice versa, but > there is middleware which serialises between Java and ActionScript, > such as FDS. > > On the server you will need to look at EJB and J2EE and I would > recommend Spring, although it takes a bit of getting your head around, > and Hibernate if you are persisting your data relationally. These are > all frameworks for coding which, with supporting packages from 3rd > parties, give a high degree of productivity in writing scalable Java > servers. It is truly amazing how much fee code there is available. > > You'll probably wind up with Eclipse as an IDE too, so it is worth > familiarising yourself with that. Don't expect the Microsoft IDE, but > it is pretty good all the same. > > I'm sure lots of people will comment, but i hope that gives you some > first pointers of what to google. > > Good luck > > > --- In [email protected] <mailto:flexcoders%40yahoogroups.com> , "aaronvm707" <vestamedia@> wrote: > > > > Hello, > > > > I have begun working with Flex a couple of months ago and have been > > learning fairly quickly. I come from a Microsoft ASP.net background, > > but would prefer to work with Flex & Java. Can anyone suggest > > resources and/or books to start learning Java as it relates to Flex. > > There seams to be many variations of Java for different development > > needs & I am not sure where to begin. Thanks > > > > Aaron > > >
