Matt's Blog - Latest Comments

Re: Josh In Space

bean — Fri, 17 Jul 2020 17:45:41 -0000

wow amazing job dad

Re: Matt’s first law of software complexity

Brad Baker — Tue, 09 Apr 2019 23:30:10 -0000

Hmm. Your ideas are intriguing to me, and I wish to subscribe to your newsletter.

Re: Groking Enum (aka Enum<E extends Enum<E>>)

Martin Maletinsky — Fri, 16 Mar 2018 10:13:23 -0000

I have a question on the "Foo<subclassoffoo extends="" foo<subclassoffoo="">>" trick (which is also used for Enum).

If I understand it right, in the corresponding example after defining type Bar, the following declaration would also be correct:
class Bar2 extends Foo<bar> ...

If this is wrong, could you please explain why (as Bar extends Foo<bar>)?

If it is true, than I believe the following statements are not correct:

"this allows Foo to formulate a contract that says "any subclass of me must implement subclassAwareDeepCopy() and they must declare that it returns that actual subclass"."
(in my example, if correct, Bar2 could implement subclassAwareDeepCopy() such that it returns an instance of Bar and not Bar2).

If my thoughts are correct so far, than I don't see what you achieve using "Foo<subclassoffoo extends="" foo<subclassoffoo="">>" which you couldn't equally achieve using "Foo<subclassoffoo>".

thank you for any hints
Martin

Re: First post

Brad Baker — Tue, 22 Sep 2015 19:32:14 -0000

First!

Oh wait.. damn! MIssed it!

Re: java.util.regex.Pattern StackOverflowError’s on (x|y)*

Michael Vorburger — Thu, 18 Jun 2015 14:51:27 -0000

Curiously on an Oracle 64bit JDK build 1.8.0_31-b13 VM (build 25.31-b07, mixed mode) today this works if as above - but size = 10000 will still cause it to fail... ;-)

Re: Serving one Apache site from two parallel directories

Jed Mao — Sat, 05 Apr 2014 00:04:05 -0000

Great solution. Thanks! I'm using it for my dev server to serve a .tmp folder along with app files, so I don't have to copy them over with Grunt. You saved my day!

Re: Serving one Apache site from two parallel directories

Vigintas — Tue, 01 Apr 2014 06:45:47 -0000

Nice, still the only place I found on how to do this 7 years later! =]

Re: Serving one Apache site from two parallel directories

Mario S. Falen — Sun, 13 Oct 2013 02:17:04 -0000

Hi,

I used it with some changes, because I needed it for one alias for two directories. Thank you.

[...]

RewriteEngine On
RewriteCond "C:/xampp/htdocs/images_zone/$1" -f [OR]
RewriteCond "C:/xampp/htdocs/images_zone/$1" -d
RewriteRule ^images/?(.*)$ /images_zone/$1 [L]

</directory>

Re: Ant’s cool morale booster: splash task

Sanky — Fri, 21 Jun 2013 01:07:36 -0000

How to hide the splash screen after certain targets are executed, but script has more things to run?

Re: CVS is prior-art for Interwoven’s patent (#6505212)

foozinharley — Sun, 19 May 2013 18:20:29 -0000

Do you really want to here what's going on with Interwoven as of 05/17/2013. There tech and products seem to be running off stolen tech. IF you are still around and interested let me know. They actually have a grand jury trial coming up. Ever wonder when Autonomy sold to HP what was the accounting error? It's playing out in San Fran court 08/12/2013

Re: Serving one Apache site from two parallel directories

Pete Bagnall — Mon, 14 Jan 2013 13:20:37 -0000

Another use case - if you're writing modules for a framework, and you have your module in version control, you need to keep the files separate from the framework, but in the same URL space. This does the trick very nicely. Thanks!

Re: Groking Enum (aka Enum<E extends Enum<E>>)

Seshumadhav Chaturvedula — Mon, 23 Jul 2012 02:02:11 -0000

This is by far the best article I have read about Enums, their impl and particularly Enum<e extends="" enum<e="">>

Re: Groking Enum (aka Enum<E extends Enum<E>>)

Hui Wang — Sun, 17 Jun 2012 11:29:06 -0000

Obviously, it's not true to say that "Subclasses of Foo (like Bar) follow the idiom that the type argument they supply to Foo is themselves. "

Re: Is Sun Java Certification all that?

Jane — Thu, 29 Mar 2012 06:19:45 -0000

Java SE 7 Preparation guide. http://www.epractizelabs.co... using this you can understand whats the benefits of the Java certification and how to take the exams too..

Thanks in advance

Re: Groking Enum (aka Enum<E extends Enum<E>>)

alexsmail — Thu, 09 Feb 2012 18:10:30 -0000

Well, it is still possible to abuse compiler. Consider following example:

class Foo<E extends Foo<E>> {

public E create(){return null;}
}

class Bar1 extends Foo<Bar2>{

public Bar2 create(){return null;}
}

class Bar2 extends Foo<Bar2>{

public Bar2 create(){return null;}
}

Re: Serving one Apache site from two parallel directories

Alexander Baron — Thu, 19 Jan 2012 17:23:35 -0000

This doesn't seem to work with SSI. Any ideas why?

Re: Groking Enum (aka Enum<E extends Enum<E>>)

Dima Star — Sat, 07 Jan 2012 04:10:06 -0000

What do "30", "10" and "40" mean here?

RED(30), // constructor call
AMBER(10),
GREEN(40); // note the semi-colon

Thanks,
Dima Star

Re: Is Sun Java Certification all that?

Rayan — Thu, 22 Sep 2011 14:34:42 -0000

i am a third year computer science student in a degree program, suspended for the university for have low grades. i want to go back to school after the suspension time which is 1 year, if i do the sun certification would it help me enter the professional industry with out my degree?

Re: Is Sun Java Certification all that?

Len — Wed, 07 Sep 2011 17:20:28 -0000

going via degree helps a lot because you turn to learn other things about programming. but as for me, understanding java, one can develop applications that can expose one. check-out the facebook guy. It depends on your intentions of programming, off-course we need cash. can sum1 email info on voucher shops at lkonaite@gmail.com, I would like write J2SE.

Re: How I customized the Sandbox theme

Paola Oyharcabal — Wed, 23 Mar 2011 10:48:03 -0000

hi, I am a web designer newbie to working with blogs... a customer of mine wants to create a blog/site. She wants my designs and, most importantly, wants to have an intro that doesn't change at the front page/comments to be kept below this intro. I've been looking around, and found sandbox to be the most flexible template out there... but don't know If its possible to do this... do you have any advise?

Re: My kingdom for some bandwidth

Bethesda Real Estate — Mon, 14 Feb 2011 15:02:52 -0000

and 6 years later we have 50mb adsl bandwidth, would you give all of your kingdom for some bandwidth now?

Re: java.util.regex.Pattern StackOverflowError’s on (x|y)*

abhishek ranjan — Thu, 06 Jan 2011 15:18:41 -0000

import java.util.regex.Pattern;
import java.util.regex.Matcher;

public class RegexpFun {
public static void main(String[] args) {

    CharSequence largeString = makeLargeString();
    Pattern p = Pattern.compile("(x|y)*");
    Matcher m = p.matcher(largeString);
    System.out.println("matches? " + m.matches()); // throws StackOverflowError
}

private static CharSequence makeLargeString() {
    final int size = 1000;
    StringBuffer largeString = new StringBuffer(size);
    for (int i = 0; i < size/2; i++) {
        largeString.append("xy");
    }
    return largeString;
}

}

Re: Serving one Apache site from two parallel directories

ali — Mon, 20 Dec 2010 23:25:23 -0000

hi,
i am fed up with apache - there is no good tut that is true example bases. this slution you have presented may help me, specifically i need to:

1) sever one single dynamic website with php/apache
2) i can serve the website ok from my . but i need a 'super access' as an administrator to handle 'web-based' moderation+management.
3) so i have the main login script that ordinary allows users to login and access the site - but when an authorised administrator logs in he/she is directed to another/second directory .
4) the second directory servers another login script and if passed servers the pages/scripts as required until the user logs out or the session expires.

please tell me how to arrange the directories ie. on the same level or the inside and the directives needed to acompolish this small task.

please anyone let me have a solution so i can move on.

thank you.

Re: Serving one Apache site from two parallel directories

Antoine Solutions — Sat, 18 Sep 2010 00:32:31 -0000

THANK YOU SO MUCH FOR THIS!!! I tried everything from Alias to Symlinks... this was the CURE-ALL!

Cheers,

Antoine

Re: When Java is dead

Deepak — Fri, 03 Sep 2010 09:45:27 -0000

Java will never die if java dies then its end of digital world