Raible Designs

My IDEA Evaluation - Eclipse is better

I've been trying to use IDEA (on OS X) for the past few weeks and I keep reverting back to Eclipse for features that seem to be missing. I know the features must be there, but I just can't find them. Why else would everyone like it so much? Sidenote: I've never used IDEA for a feature that doesn't exist in Eclipse - I'm sure there are some, I'm just not using them. It sure would be cool if someone created a HowTo explaining how to migrate from Eclipse to IDEA. In the meantime, I'll settle for posting my questions here:

• Debugging in Tomcat - I'm currently using Sysdeo's Tomcat Plugin in Eclipse for Tomcat 4.1.27. It's super easy to setup and use - I expect the same ease-of-use from IDEA. I haven't looked much, but I'd love to hear feedback on IDEA's Tomcat debugging support.
• Renaming a variable in a JavaBean renames getter and setter methods. Sounds simple enough, in my 10 second search, I couldn't find it. In Eclipse, right-click -> Refactor -> Rename.
• Override/Implement methods (from parent classes and interfaces). Right click -> Source -> Override/Implement methods in Eclipse.

I'll add more as I think of them throughout the day. So far, I like IDEA, but to be honest - it's not saving me any time over Eclipse. It also locks up as much as Eclipse and it's responsiveness is still a big sluggish on OS X (10.2.8) with 1 GB of RAM (1.33 MHz processor). Hopefully Panther will make both IDEs faster. Two weeks ago, I was thinking of buying it (as well as Dreamweaver) - now I'm frustrated with IDEA's lack of features and Dreamweaver's slowness. I'll probably pass on shelling out the cash since Eclipse and BBEdit are giving me all the features I need in IDEA and Dreamweaver.

Web Frameworks - which one should I learn?

I've seen a lot of talk about Web Frameworks these last couple of weeks - particularly JavaServer Faces, WebWork and Spring. There's also been great articles posted comparing Spring and WebWork as well as an Introduction to Spring from TSS. Spring, WebWork and JSF all look like excellent frameworks to me, but I also continue to believe that Struts is a great framework. And I would go so far as to say that it's the best web application framework. Yep, I said it - Struts is the best web application framework to learn if you are a web developer wondering what to learn. Why? Because it will get you a job.

I've continued to receive a fair amount of calls and e-mails over the last couple of weeks - and they're all calling because of my Struts experience. Good luck in finding a company that wants you to build their web application using WebWork or Spring. Maybe someday I'll be lucky enough to hire employees for Raible Designs and build web applications in my own office with my own employees. Then we'll get to choose whatever technology we want to build customers' apps. Until then, I'll stick with Struts and continue to be an employed developer.

I strongly believe the best way to learn anything is to get paid to do it. I've learned Struts over the past couple of years, not because I wanted to, but because someone else wanted me to - and they paid me to do it. Of course, there are some companies that will probably pay you to learn WebWork or Spring, but most would rather not.

Another thing to consider is that WW and Spring will probably someday develop "migrating from Struts" documentation. Sounds like a good idea to me - until then, and until someone pays me to learn the others, Struts is #1 for me.

Now it's your turn to tell me why my logic is flawed... if you can. ;-)

OS X Rocks, but it sucks too

OS X is awesome ~ it's beautiful to look at and it's based on Unix. What more could you ask for? Windows XP looks good, RedHat 9 doesn't. Windows XP with Cygwin is almost tollerable, but you still have to type "cd c:" when you want to change drives. What bugs me about OS X is simple *nix things don't work on it. Integrating Apache + Tomcat is a 5 minute job on WinXP and RH 9, but I've spent the at least 10 hours trying to do it on OS X with no luck. I could post the errors here, but what good would it do? This kind of stuff just works on RH 9 and WinXP. Therefore, OS X sucks!

What am I ranting for? No reason really - it just sucks that I've spent so much time trying to do something that still doesn't work. This HowTo didn't help either (building from source had errors, no binary of Apache available). I guess this is all due to the fact that OS X has a 1% (maybe 2%) market share among developers?

WebWork and JDD

I attended the Boulder Frameworks meeting tonight on WebWork, followed by the Boulder JUG meeting. The WebWork (a.k.a. WW) presentation had a mere 5 attendees, but Kris gave a very good overview of WW and showed how simple it was. Here are some of the strengths of WW according to Kris:

• It's not dependent on J2EE. Many method signatures are empty and it uses interfaces everywhere, rather than parent classes. Sounds cool. Kris likes it because "it gives you a warm fuzzy feeling you're not tied to WW."
• It's not Jakarta. "Jakarta is like a Ketchup bottle - you have to beat it to get anything out of it." I don't know that the WW team produces software much faster than Jakarta though...
• Instead of using the HttpServletRequest, WW uses a Stack, which is essentially the same thing (sans J2EE).
• WebWork has Interceptors. They're like Filters, but WW comes with built-in Interceptors that can be applied declaratively. Kris mentioned there's little documentation on the built-in Interceptors - a wiki page would be nice.
• Action packaging - you can turn a portion of your WW application into a jar and it can be added to another WW application. It sounds good, but I can't think of a use for it right now. Sounds like modules in Struts.

Kris's biggest reasons for liking WW was Interceptors and Inversion of Control. However, Struts has those too. Good presentation. I plan to learn WW and give up this whole my framework is better than yours stance. In fact, I hope to do this with many of the technologies I use everyday. I'm going to start using Orion and Resin so I know if Tomcat really is better, or better yet - when should I use one appserver or the other. I'm learning IDEA so I know when to use Eclipse and when to use IDEA. Today I discovered how IDEA warns me about invalid Javadocs (very nice feature). Eclipse continues to rule the CVS integration world, and I see no reason to quit using it and bitch about IDEA's lack of CVS integration.

After WW, I walked across the hall to listen to James Duncan Davidson talk about "James Driven Development" (my phrase) - also known as Objective Object Orientation. Rather than bore you with the details, here are the highlights:

• Don't abstract too much - just enough to fit your needs. Examples of too much abstraction can be found in Apache's Repositories (James's words - he didn't specify any projects).
• Don't extend, instead create objects do something, then you don't need to know the interworkings of the object.
• Dynamically typed languages rock (i.e. Smalltalk, Ruby, Python). They're much easier to develop with, especially when backed my TDD. You can accomplish similar things in Java using lots of casting.
• He can't wait until something comes along and kills Ant and Tomcat - he never thought they'd make it this far - especially considering he wrote them when he was a Junior Programmer for Sun. He gave Tomcat its name because he thought it'd be good animal on the book cover of an O'Reilly book. He never thought it would happen, and now that it does have a book, he said he's disappointed it's not an actual Tomcat (apparently it's a snow leopard?).

His point about Ant and Tomcat is that 1) something better than Ant will rock, so we should all be happy when something better comes along and 2) Tomcat was never designed (or tested) to be used in the environments its being used in (i.e. Nuclear Facilities). Good stuff - brain is full.

Panther for $21.39

Thanks to James' Tip I just purchased OS X 10.3 for a mere $21.39 (1.44 in taxes). Thanks to James for the tip and thank you Apple for recognizing my new purchase.

Update: I've heard that some people were unable to do this. I got an error when I first tried it - removing the dash (-) in my serial number fixed the problem.

An enjoyable workday

Yesterday I had a one-day contract to teach a JSP class at a company in Boulder. I got up early and drove to Boulder, where the company is located. I left early because our Internet Access has been down (no MapQuest) and I needed to figure out where the heck the company was. The strange thing was that I really, really enjoyed my drive to work. Today I enjoyed my drive as well, but not nearly as much. What I noticed was that yesterday I was more alert of my surroundings. Granted, the Flatirons are pretty spectacular (as illustrated by my mophotos). However, the difference was that I was not contemplating my day. Today, I noticed I was planning my whole day on the drive. I gotta get those WebTests written (including reading all my apps links from my menu-config.xml file) ... I need to write more tests for the JSPs and all our actions ... damn, I'm only going to get in 9 hours today - how am I gonna get 40 in by tomorrow night ... etc. Yesterday, it was just - cool, I'm going to teach a class, should be fun.

What am I trying to get at with this rambling? I'm trying to say that some jobs are more finite, and therefore more enjoyable. When I did construction work in college, it was awesome because we'd always start cleaning up a 1/2 hour before 5 o'clock. With programming, I start to say "Oh shit, I gotta get going" at 4:55, and I don't leave until 5:30. With teaching, it was an 8:30 - 4:30 gig - a nice finite day. I found this to be incredibly enjoyable - just the thought of being done with no worries at 4:30. Today, if I don't get everything done by the time I leave, I'll think about it all the way home.

Is it just me, or does being a passionate programmer kinda suck? I know there's programmers out there that are much better about this - 5:00 means 5:00 and they don't think about anything after they leave the office. I need to find a balance, a way to shut it off when I leave, and to not think about it until I get here. By the way, the courseware for the class never showed up yesterday, so it was cancelled before it started - but I had that no-anxiety feeling for most of the day. Wierd.

Monitor Connections in SQL Server

Does anyone know how to monitor the number of Connections in SQL Server? In MySQL, I use "mysqladmin processlist", but there doesn't seem to be such a utility for SQL Server. I need to make sure that my connections are getting closed properly.

Dynamic Queries with Hibernate

I have a client that wants the ability to search on all columns in all tables in their database. So far, I've been able to get all the columns, and their friendly labels by getting all the *Form.* keys in my ApplicationResources.properties file. I still need to sort them alphabetically, but that's another issue. Now I have the following UI pretty much done:

I'm happy with the UI, but I'm struggling with getting Hibernate to return my desired results. I'm able to dynamically select the table/column to search on because of values in my "tables/columns" drop-down. However, many of these tables have Id fields - for status fields, type fields, etc. (basically drop-downs). When searching, this is a pain because users are likely to search on "Active" rather than "1". Because of this, my first issue is how do I make the status field's friendly name a part of my POJO (with Hibernate)?

My 2nd issue is regarding Hibernate's Expression API. I want to be able to pass in the criteria (=, contains, <, >), propertyName and value and get my results. However, it seems that the second half of the comparison must be the same datatype as the field. This means if you're searching on "contract amount", and its a Double, I need to do a Double.valueOf(searchTerm). Basically, I'm looking for an easy way to do this:

  Criteria filter = ses.createCriteria(clazz); 
  
  // determine type of expression - I'd love to figure 
  // out a cleaner way to do this but there's only 
  // 5 possible types, so I don't mind typing the 5
  // if statements
  if (expression.equals("=")) { 
    // How do I convert these to the fields' type at run-time?
    // Sure I could do a bunch of if statements again, but it seems ugly.
    filter.add(Expression.eq(field, Double.valueOf(value))); 
  }
 
  List results = filter.list();

Any advice is appreciated - especially considering I estimated this task to take 4-5 hours and I'm going on 8.

Pictures from the Great American Beer Festival

Last weekend, I volunteered to serve up 1 oz. beers at the Great American Beer Festival. It was a great time, and I highly recommend it. I was fortunate enough to be serving beers from the Brooklyn Brewery, which won both a gold and a silver medal. Here are some pics from the event.

Time to hook up the Senior J2EE Developers in Denver

This is nuts - I'm getting at least one call or e-mail per day from recruiters and/or friends in Denver. Rather than posting these positions here (with Rates), if you're a Senior J2EE Developer in Denver, let me know. I'm going to start a list of folks with skills like mine so I can hook some brutha's up! I have 2 right now - both for J2EE/Web stuff.

Here are my requirements to get on my list:

• Must know Ant, meaning you've written a build.xml file before. Having read Java Development with Ant is a huge plus.
• Blogging is a plus - it means you're interested in Java and sharing your ideas (implying that you think outside of work).
• You've used Eclipse or IDEA and use one or the other on a regular basis. This implies that you know a good IDE can improve your productivity.
• Must know XHTML and CSS. I do, and I said skills like mine.
• You're able to checkout AppFuse from CVS, build it and run "test-all" with success. README.txt is your friend.

I reserve the right to delete any of your e-mails and resumes, and to hook my friends up over other folks. I don't want to get a flood of e-mails, I'm just trying to hook up good folks with good jobs. If I can get the rates, I'll let you know what they are.