Get you java chops first. These will easily fall into place once you have done that. BOL, Mark :-> --- Tim Nicholson <[EMAIL PROTECTED]> wrote: > Can you explain what the following are :- > > 1) JBoss > 2) Orion > 3) Tomcat > 4) J2EE > 5) JNDI and > 6) JMS containers, in > 7) EJBs > 8) JSP > > So what are these ? And can you recommend any learning materials (websites, > books) > for beginners in these technologies ? > > I am someone who is just starting to learn java and I don't know about any > of these additional things ? > > Can someone please explain ? > > > > > ----- Original Message ----- > From: "Joseph Ottinger" <[EMAIL PROTECTED]> > To: "JDJList" <[EMAIL PROTECTED]> > Sent: Sunday, September 22, 2002 10:04 PM > Subject: [jdjlist] Re: J2EE, Tomcat, JBoss, etc. > > > > >From: Barzilai Spinak <[EMAIL PROTECTED]> > > >Subject: [jdjlist] J2EE, Tomcat, JBoss, etc. > > > > > >Hi everbody. > > >After several attempts to learn J2EE , I'm finally reading the "J2EE > > >Tutorial" from Sun's site. > > > > Would be a good place to start. :) > > > > >I hope the Tutorial is the best way to start. I downloaded the J2EE SDK > > >which -- I understood -- has everything > > >you need to develop, deploy, run, etc. but is not intended for commercial > > >use... is that correct? > > > > That's correct. I personally advocate learning what you need to use first, > > instead of following a tutorial step-by-step - since learning what you > need > > to use will make sure you have the basics as well. However, I'm sure not > > everyone learns the way I do, so ... > > > > >I used Tomcat a little over a year ago to develop a couple of test JSP (I > > >read a whole book on JSP and Servlets so I know > > >some stuff already) and recently found out about JBoss which seems to be > > >getting pretty popular.... > > >The problem is that I dont completely understand how all these relate. > > > > > >From JBoss' site: "JBoss is an Open Source, standards-compliant, > > >application server..." > > >From Tomcat's site: "Tomcat is the servlet container that is used in the > > >official Reference Implementation for the Java Servlet and JavaServer > Pages > > >technologies" > > > > > >What exactly is an application server and why Tomcat isn't one? Or is it? > > > > An Application server includes implementations of many, if not all, of the > > J2EE specifications. That means an app server will include mechanisms for > > executing servlets and JSPs, as well as having a JNDI and JMS containers, > in > > addition to supporting EJBs, JavaMail, etc. etc. etc. > > > > Tomcat is, as their site suggests, a servlet container. It comes with a > JNDI > > container, although its quality is suspect IMHO, and Tomcat itself has > > serious issues in its default configuration. (Slashdot has a thread on > this, > > from a month or so ago, covering issues and relevant links.) JBoss, on the > > other hand, supports many servlet containers (Tomcat and Jetty are the > ones > > supported out of the box), EJB, JMS, etc. etc. etc. Thus, JBoss is an app > > server, and Tomcat is a servlet container. > > > > >Are they two different kinds of animals? > > > > Yes. > > > > >Do they complement each other? > > > > No. One supercedes the others; a servlet container is part of an app > server. > > > > >Do they compete against each other? > > > > No. > > > > >Do they overlap in some areas but not in others?? > > > > No, although many servlet containers include JNDI containers, since JNDI > is > > a fundamental aspect of using J2EE resources. > > > > >What should I use? My platform is RedHat 7.3/Apache1.3.23 > > >So far I'm just learning and following the examples in the book using > Sun's > > >implementation, but after that what?? > > > > After that: use what you understand. JBoss is a good app server, IMHO, > > although configuration is "more than is necessary" if you ask me. Tomcat > is > > a, um, decent reference although I find it had oddities that are > > discouraging, and its performance could be better. I'm biased in favour of > > Orion (http://orionserver.com) myself, because installation and > > configuration make sense (Orion takes about thirty seconds to configure > and > > run, after download). JBoss is a touch more current in spec compliance, > > though, although that's likely to change in a few months. > > > > >I'm also playing with JBuilder which I think will be my next Java IDE. > > >JBuilder installs a couple of versions of Tomcat. > > >I'm only talking about Tomcat and JBoss because they are the two free > > >options I know of. > > > > Free... you get what you pay for. Tomcat's worth every penny. JBoss is > worth > > more than what you pay for. Many app servers have "free for development" > > licenses. > > > > >Well, in sum, the whole J2EE thing is too confusing because there are too > > >many points and aspects of it. > > > > Nah - it's meant to support the enterprise. Think about it from the > > enterprise's perspective and you'll be fine. > > > > ----------------------------------------------- > > Joseph B. Ottinger [EMAIL PROTECTED] > > http://enigmastation.com IT Consultant > > > > _________________________________________________________________ > > Chat with friends online, try MSN Messenger: http://messenger.msn.com > > > > > > To change your JDJList options, please visit: > http://www.sys-con.com/java/list.cfm > > > > To change your JDJList options, please visit: http://www.sys-con.com/java/list.cfm
===== Mark Zawadzki Performance Engineer/DBA/Programmer extraordinaire� [EMAIL PROTECTED] [EMAIL PROTECTED] "Democracies die behind closed doors," - Judge Damon Keith __________________________________________________ Do you Yahoo!? New DSL Internet Access from SBC & Yahoo! http://sbc.yahoo.com To change your JDJList options, please visit: http://www.sys-con.com/java/list.cfm
