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What do you want?

Posted by daniel on January 10, 2005 at 9:39 AM EST

More on this year's JavaOne abstracts

There's a scene in Field of Dreams where Kevin Costner has taken James Earl Jones to Fenway park to see a baseball game. As they stand in line at a food concession, Costner asks Jones, "what do you want?" Jones rails against fans that have hounded him for decades and says that he just wants to be left alone. "No, " Kostner says gesturing at the concession stand, "what do you want?" Jones answers that he'd like a "dog and a beer."

So we've heard from Chet Haase and now from Peter Delisle asking what you want for this year's JavaOne. You can keep quiet. You can answer them and rail against injustices from past years. Or, you can tell them what you want.

Give them a chance to do the right thing. Tell them what you want for this year's JavaOne (we'll soon be launching a forum to help you do just that). For now, take a moment when Peter blogs No submission? Got suggestions and check out his list of last years web-tier talks.

Don't hit that submit button until you are really ready. In today's Weblogs , Felipe Leme provides A friendly warning about JavaOne submissions: Beware of the dog, I mean the button - this year the system has changed and once you click "Submit - Finalize" your submission is final.

Erik Meade blogs on the importance of Knowing when to stop. Is there a 12 step program for people caught up in death marches?

There is a suggestion about readability in today's Forums. What do you think of lucretious2's post that "Someone suggested the following good idea (or this is my version of it anyway):instead ofa.equals(b)you can writea equals bSimilary for any method call with a single parameter:a = b add c; // b.add(c) This is a kind of a lite form of operator overloading."

Wingetr writes "+1 for String.head(int) and String.tail(int)."

What about negative votes for bug fixes? Hlovatt writes "If you read the, admittedly very long, thread re. const (http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4211070) then you will see that many people including myself are against this but currently can't vote against it (I support negative votes - good idea)."

In Also in Java Today , Andrei Cioroianu writes "Content caching is one of the most common optimization techniques used in web applications, and it can be implemented easily. For example, you can use a custom JSP tag — let's call it <jc:cache> — to wrap every page fragment that must be cached between <jc:cache> and </jc:cache>. Any custom tag can control when its body (i.e. the wrapped page fragment) is executed, and the dynamic output can be captured. The <jc:cache> tag lets the JSP container (e.g. Tomcat) generate the content only once, storing each cached fragment as a JSP variable in the application scope. Every time the JSP page is executed, the custom tag inserts the cached page fragment without re-executing the JSP code that generated the output." In Caching Dynamic Content with JSP 2.0, he takes this a step further, allowing the cached content to be customized for each request or each user.

Eric Giguere explains Game Canvas Basics in a recent Core Wireless Tech Tip. The GameCanvas class extends Canvas which "gives the application no control over when a canvas repaints itself - all it can do is request a repaint - or over how quickly key and pointer events get delivered to the canvas. This lack of control can cause action games and others that are speed-sensitive to feel sluggish and unresponsive. GameCanvas was designed specifically to fix these weak points."

In Projects and Communities, the Survey Builder project is part of a graduate course in software engineering at San Francisco State University designed to be useful for a variety of survey-related scenarios.

The Java Web Services and XML community points to the second part in the developerWorks series What's new in JAXP 1.3? which focuses on XPath.

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