Blogging Roller

Dave Johnson on open web technologies, social software and Java

Above: a random selection of photos from my Flickr photo-stream.

Tuesday Aug 12, 2003

Testing 123...

This site is again running the latest from Roller's CVS. Everything looks good, but OSCache 2.0-beta2 isn't writing to the disk cache on this site either. I'm not sure this is a bug (but I filed one anyway), perhaps OSCache 2.0-beta2 no longer needs to write to disk when cache.memory and the cache.entries is set to a low value.

UPDATE: It is an OSCache bug and a fix is forthcoming (thanks OSCache crew), the recommended work-around is to add the following to oscache.properties

cache.persistence.class=com.opensymphony.oscache.plugins.diskpersistence.DiskPersistenceListener
Dave in General Comments[0]

Tags: General

Best practice or final fetish.

I work with a couple of Programming Languages geeks who are, it seems, always Scheme-ing and Smalltalking behind Java's back. One of these guys has a thing about the final key word. He believes that all fields, variables, classes, arguments, etc. should be final be default and that, instead of having a final keyword to declare immutables, Java should have a mutable keyword to declare those that may be mutated.

He argues that, wherever possible, fields, variables, classes, arguments, etc. should be declared final. Since Java does not default to final, you should default to final. Here are some advantages to this:

  • If you declare and initialize a variable final, you never have to worry about it being null later. Nobody can change it, so it will never be null.
  • Extending classes that are not carefully designed for extension, and let's face it most are not, is problematic. By mentally defaulting to final classes, you prevent potential problems.
  • If you need to declare an anonymous class, you don't need to wory about redeclaring your variables as final because you already declared them that way.
  • Other reasons? ...
My coworker is not the only one with the final fetish. Renaud Waldura is a final fan too. Brian Goetz writes that final can simplify your life, but points out that declaring classes or methods final does not make them faster.
Dave in Java Comments[2]

Tags: Java

WellformedWeb(TM) Services

Most folks out there in corporate IT land believe that webServices == wsdl + soap. Joe is fighting that notion. BTW, I don't think Joe means to imply that SOAP and WDSL are not well-formed.

Joe Gregorio: Barring any rename, which in all honesty I know won't happen, I'll just have to start referring to non-SOAP based services as Well-Formed Web Services.
Dave in General Comments[0]

Tags: webservices

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The latest...

I'm active on other sites too. Below are my latest thirty "tweets" and links and photos from around the web.

  • icon Tweet @ 10:28PM Feb 11, 2012

    RT @nitya: Great @gigaom article on rethinking AdMeter solutions.. How social media is making polling obsolete http://t.co/cNXp5OsR via ...

  • icon Tweet @ 04:44PM Feb 11, 2012

    embedding works for me, @mistersugar. Perhaps your blog software is stripping out some of the JavaScript or HTML code?

  • icon Blog @ 04:42PM Feb 11, 2012

    Title: The meaning on the Facebook like button

  • icon Tweet @ 09:42AM Feb 11, 2012

    RT @TomJessiman: My coworker, matz http://t.co/g575icZu

  • icon Tweet @ 08:13AM Feb 11, 2012

    t @gigaom article on rethinking AdMeter solutions.. How social media is making polling obsolete http://t.co/cNXp5OsR via @zite

  • icon Tweet @ 01:15AM Feb 11, 2012

    atholic Church blasts contraception & ignores its current child sexual abuse scandal | Manhattan Diary | IrishCentral http://t.co/Fn1de6D6

  • icon Tweet @ 07:07PM Feb 10, 2012

    and: Trick question: 'Are all Google employees stupid?' >> http://t.co/zxRrYY5m

  • icon Tweet @ 05:15PM Feb 10, 2012

    pixies!

  • icon Tweet @ 04:44PM Feb 10, 2012

    w Chrome joins the party with some "Harmony": let, collections, weak maps, proxies, and more http://t.co/GDkl8b06

  • icon Tweet @ 01:43PM Feb 10, 2012

    thrilled about a couple of cool new projects that we just kicked off at #Wayin

  • icon Tweet @ 11:33AM Feb 10, 2012

    RT @spericas: The JAX-RS 2.0 draft specification has been updated and it's under review until 3/10. Change log appendix in doc. http://t ...

  • icon Tweet @ 06:39AM Feb 10, 2012

    hy I'm Feeling So Hard-Nosed Over the Contraception Affair http://t.co/m5AG7MfN v @AdamSerwer @Kdrum

  • icon Tweet @ 11:07PM Feb 09, 2012

    ery cool use of collapsing cooling tower footage http://t.co/HF9DOyva good marketing here

  • icon Tweet @ 07:45PM Feb 09, 2012

    RT @JSCarroll: screenwriters check this out: . http://t.co/lCIVVyFC

  • icon Tweet @ 12:00PM Feb 09, 2012

    screenwriters check this out: . http://t.co/lCIVVyFC

  • icon Tweet @ 10:15AM Feb 09, 2012

    simpler, webbier approach to Web Intents (and Activities): http://t.co/mgE7ZMRI #webintents #webactivities

  • icon Tweet @ 08:56AM Feb 09, 2012

    we need to act more like a start-up | http://t.co/Lz0tqHIi

  • icon Tweet @ 08:50AM Feb 09, 2012

    RT @sogrady: in case anyone missed them yesterday, the @redmonk feb programming language rankings: http://t.co/qOYDKoBh

  • icon Blog @ 08:48AM Feb 09, 2012

    Title: HTML5 Microdata and Schema.org

  • icon Tweet @ 05:04PM Feb 08, 2012

    Every time I see pics of Amsterdam, I miss it so hard. This one is via @reddit: http://t.co/akTwHPqc

  • icon Tweet @ 04:46PM Feb 08, 2012

    RT @filmbabble: Upcoming Cinema Overdrive, Cool Classics & James Bond Originals at the Colony Theater - http://t.co/rMzXTU8m

  • icon Tweet @ 03:51PM Feb 07, 2012

    RT @hodgman: Prop 8 served no purpose, and had no effect, other than to lessen the status and human dignity..." http://t.co/UWtuqMEa #fb

  • icon Tweet @ 01:38PM Feb 07, 2012

    Phys Ed: Exercise as Housecleaning for the Body - http://t.co/vrxIOfyX http://t.co/lludZJkk

  • icon Tweet @ 10:27AM Feb 07, 2012

    RT @ronallo: My article on #microdata and #schemaorg now in the #code4lib Journal. HTML5 Microdata and Schema.org: http://t.co/YcFcprNu

  • icon Tweet @ 09:22PM Feb 05, 2012

    RT @SnootyMonkey: Somebody managed to post his Tweets to Google+, but he landed a man on the moon first as a warmup. Ridiculous! http:// ...

  • icon Tweet @ 06:32PM Feb 05, 2012

    Wayin on your favorite Super Bowl ads in the live event | http://t.co/gij20U1J

  • icon Tweet @ 06:31PM Feb 05, 2012

    watching the Super Bowl and watching the servers

  • icon Tweet @ 12:16PM Feb 05, 2012

    far as I can tell, clicking the Facebook "Like" button means "please spam me endlessly"

  • icon Tweet @ 11:41AM Feb 05, 2012

    Scoble says open web is done... stick a fork in it | http://t.co/Hgjf8lR4

  • icon Tweet @ 11:27AM Feb 05, 2012

    one of the great joys of parenting is relearning basic math and algebra… NOT

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