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Groups > comp.lang.java.programmer > #12709

Re: Aspect questions?

From Novice <novice@example..com>
Newsgroups comp.lang.java.programmer
Subject Re: Aspect questions?
Date 2012-03-05 15:33 +0000
Organization Your Company
Message-ID <XnsA00D6C86E4162jpnasty@94.75.214.39> (permalink)
References (21 earlier) <jilopr$lof$1@news.albasani.net> <XnsA008A84123C55jpnasty@94.75.214.39> <jin75c$8ci$1@news.albasani.net> <XnsA00CB84AA9E0jpnasty@94.75.214.39> <jj13jl$qre$1@news.albasani.net>

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Lew <noone@lewscanon.com> wrote in news:jj13jl$qre$1@news.albasani.net:

> Novice wrote:
>> Lew wrote:
>>> ...
> 
>> The ArrayList article in the Java (1.7) API is at this URL:
>> http://docs.oracle.com/javase/7/docs/api/index.html. From there, 
>> scroll down in the lower left index window to find ArrayList and
>> click on it; the article appears in the main pane of the browser.
>> With regards to performance, we get various clues in the introduction
>> to the article (the part about the Field Summary), including:
> 
> 'ArrayList' has its own URL, also, but yes.
> 
>> "The size, isEmpty, get, set, iterator, and listIterator operations
>> run in 
> 
> I'd've been satisfied with just the URL. But your answers are exactly
> right. 
> 
I intended to just give the direct URL but the URL in the browser doesn't 
change when I click on things in the API; it just says 
"http://docs.oracle.com/javase/7/docs/api/index.html" no matter what I 
click on. The same thing happens in Chrome so I know it's not just a 
Firefox issue. Apparently, the folks at Oracle don't want us to know the 
direct URLs to specific pages.

>> That first sentence is a bit evasive if you have no idea how a linked
>> list would perform but that's what it says....
> 
> How does a linked list perform?
>
Given the additional infrastructure beyond what is in a regular hash set, I 
have to assume it's slower than a HashSet. How much slower, I don't know. 
If I were writing code that involved very large sets - probably at least 
thousands of entries - I could research that during the design phase and 
try to come up with a calculation to see if the difference might be 
appreciable. Or I could wait until volume testing revealed an issue, then 
possibly rethink the linked list in favor of a hash set if the iteration 
sequence was not terribly important to the customer.
 
>>>>> Summary:
>>>>> Interface: what to do
>>>>> Class:     how to do it
> ...
>>> Give me an example of some unit of functionality you'd like to
>>> design, in broad terms, and I'll do just that.
>>>
>> I think that would be an interesting exercise. Let's do one that I've
>> already done myself and that you (probably) haven't. I'm sure I'll
>> learn some things by seeing how you approach it.
>>
>> I have a project (that regularly undergoes polishing) to produce
>> resumes. More specifically, it creates various formats of my own
>> resume (and only my own resume.) Each of the resumes I generate
>> contains the exact same information obtained from a single file but I
>> generate it in several formats: an HTML version, a Java applet, an
>> ASCII text version, a PDF version (using iText), and a Word version.
>> I also generate supporting files, including a CSS file for the HTML
>> version of the resume, and a short PDF containing contact information
>> for references. 
> 
> What are the overall modules? For example: "Obtain resume from single
> file", "Export to format X", "Generate references document", ...
> 
At the moment, I have a main program that simply generates each document in 
turn. It's called ResumeFileGenerator. Its constructor gets the resource 
bundle that drives the creation of the resumes. Each resume format is 
generated by a separate class and is passed an object that represents the 
data needed in the resume and the path and file name to be generated by 
that class. Then, the supporting documents are each generated by their own 
separate classes. They too are told the path and file name that should be 
generated but are not passed the resume object since they don't need it. 

>> The program that generates the resumes and supporting files is
>> written in Java. The data file that is parsed to create each format
>> of the resume is a Java ResourceBundle of the "list" type. NOw, I'm
>> only producing the resumes 
> 
> Sorry, "list" type?
> 

Sorry, that was sloppy shorthanding on my part. I meant the ResourceBundles 
that are based on ListResourceBundles, as shown at 
http://docs.oracle.com/javase/tutorial/i18n/resbundle/list.html, versus the 
"text" and "message" types which are basically properties files. Some of my 
data consists of arrays like the list of editors I've used and the list of 
word processing programs I'm familiar with so the simpler property file 
type resource bundles don't work well for that.

>> in English so I should mention that I am open to the possibility of
>> creating the resume in additional languages - I have a working
>> knowledge of two other (human) languages - so I chose to use a
>> Resource Bundle so that I could easily generate resumes in additional
>> languages. Otherwise, I'd have probably just used a standard text
>> file or more likely a properties file. 
>>
>> Given the fact that several resumes containing the same data are
>> being generated there would seem to be obvious opportunities for
>> refactoring and probably at least one interface. This code has gone
>> through various permutations but I've used a single interface with a
>> single method in my existing code. The code works but I'm not at all
>> sure it is designed well. 
> 
> What interface? What method?
> 
It's an interface I created as opposed to one that is in the API. It is 
called ResumeFileWriter and has one empty method in it called writeResume. 
It has two parameters, a String that identifies the path and name of the 
file to be written and a Resume object that refers to the data contained in 
the Resource Bundle. Each of the classes that writes an actual resume (as 
opposed to a supporting file) implements it. 

It's entirely likely that this interface should do a lot more than it 
currently does. That's why I'm very curious to get your take on this.
 
I've also got an abstract class called ResumeFileCreator. It has four 
concrete methods: deleteFile, openOutputFile, closeOutputFile and 
getGeneratedBy (which simply generates a string containing the name of a 
class and the current date and time which I use to create comments in each 
of the files that are written). Each of the classes that writes a resume or 
supporting file subclasses ResumeFileCreator.

>> I'd be very curious to get your take on it. I expect that the design
>> has major flaws and I'd like to clean those up once I find out what
>> they are. 
>>
>> Does that sound reasonable to you? I'm basically asking you to talk
>> me through the way you would design it knowing what I've told you.
>> Naturally, you're free to ask as many questions as you like to
>> understand what I'm trying to do.
> 
> We'll go step by step.
> 
Works for me :-)

>>> Why do you use more sets than lists?
>>>
>> Most of the things I put in collections should not have duplicates so
>> I enforce that via Sets. Naturally, if duplicates are appropriate,
>> I'll use a list.
> 
> Exactly right.
> 
> ...
>>>> for example, that a HashSet normally performs best and a TreeSet
>>>> worst with a LinkedHashSet typically performing almost as well as a
>>>> HashSet. So that's obviously a good place to start.
>>>
>>> "normally"? "performs"? "best"?
>>>
>> Just a generalization I saw in the tutorial for the Java Collection
>> Classes. Let me get you a reference....
>>
>> Assuming you're already in the Java 1.7 API, the articles on
>> ArrayList and LinkedList both have this line: "This call is a member
>> of the Java Collections Framework". If I click that, then Tutorial,
>> then Interfaces, then Set Interface, I come to this paragraph which
>> was the basis for my generalization:
>>
>> "The Java platform contains three general-purpose Set
>> implementations: HashSet, TreeSet, and LinkedHashSet. HashSet, which
>> stores its elements in a hash table, is the best-performing
>> implementation; however it makes no guarantees concerning the order
>> of iteration. TreeSet, which stores its elements in a red-black tree,
>> orders its elements based on their values; it is substantially slower
>> than HashSet. LinkedHashSet, which is implemented as a hash table
>> with a linked list running through it, orders its elements based on
>> the order in which they were inserted into the set (insertion- 
>> order). LinkedHashSet spares its clients from the unspecified,
>> generally chaotic ordering provided by HashSet at a cost that is only
>> slightly higher."
> ...
> 
>>> The questions above are to stimulate thought. The questions that
>>> follow are for you to answer here.
> 
> You did it in the opposite order, answering above and thinking below.
> That's fine. 
> 
>>> What are the performance differences (if any! - question every
>>> assumption in a question) between:
>>> - 'ArrayList<E>' and 'LinkedList<E>'?
>>
>> I've cited the API on this already. Would you like me to paraphrase
>> to show that I understand what they're saying?
> 
> No, I wanted you to answer down here in the first place.
> 
Sorry about that. 

>>> - 'HashSet<E>', 'TreeSet<E>' and 'LinkedHashSet<E>'?
>>
>> I've cited the Tutorial on this already. Would you like me to
>> paraphrase to show that I understand what they're saying?
> 
> Unnecessary. Just answer the questions below. And I am not so sure you
> do, completely, yet.
> 
>>> For your claim that "HashSet normally performs best", define:
>>> - "normally"
>>> - "performs"
>>> - "best"
>>> ...
> 
>> Basically, if you don't care about the order of the elements of the
>> Set, you'll find HashSet fastest. If you care about the order,
>> LinkedHashSet will be faster than TreeSet.
> 
> Did you notice that "the order" is different between 'LinkedHashSet'
> and 'TreeSet'?
> 
>> There's nothing to suggest any other factors, such as the size of the
>> entry, has any effect on the performance of the Set implementation.
> 
> On what basis should you choose which of these three 'Set'
> implementations to use at any given point?
> 
Good point. I should have mentioned that TreeSet puts the entries in order 
by their values (what I'd call primary key sequence in database terms) 
while LinkedHashSet stores them in insertion order. 

Obviously, that is going to be a major factor in which you choose. I tend 
to use TreeSets because I may not be getting the entries in order by value 
but I usually want them in order by their value, not by the insertion 
sequence. But if insertion sequence is important to me, then I'll look 
seriously at LinkedHashSet. 

I'm not typically dealing with large sets of thousands or millions of 
entries so I tend not to care much about the performance of the set. I know 
that performance is going to be a bigger issue with large sets.

-- 
Novice

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Thread

Aspect questions? Novice <novice@example..com> - 2012-02-24 20:10 +0000
  Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-24 13:05 -0800
    Re: Aspect questions? Novice <novice@example..com> - 2012-02-25 05:47 +0000
      Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-24 23:40 -0800
        Re: Aspect questions? Novice <novice@example..com> - 2012-02-25 17:02 +0000
          Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-25 12:08 -0800
            Re: Aspect questions? Novice <novice@example..com> - 2012-02-25 22:12 +0000
              Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-25 14:27 -0800
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-25 23:29 +0000
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-25 18:33 -0500
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-26 14:38 +0000
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 10:49 -0500
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 10:53 -0500
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-26 18:17 +0000
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-25 16:01 -0800
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-26 17:22 +0000
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 12:25 -0500
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-26 21:08 +0000
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 18:33 -0500
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-26 17:05 -0800
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 20:18 -0500
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-26 21:29 -0800
                Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-02-27 05:44 -0400
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-27 21:37 -0500
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-28 00:04 -0800
                Re: Aspect questions? Patricia Shanahan <pats@acm.org> - 2012-02-28 01:39 -0800
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-29 14:54 +0000
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-28 17:24 -0500
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-27 04:53 +0000
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-03-02 17:08 -0500
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-27 05:12 +0000
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-26 21:38 -0800
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-27 17:27 +0000
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-27 12:22 -0800
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-27 22:50 +0000
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-27 17:24 -0800
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-29 15:00 +0000
                Re: Aspect questions? Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-02-29 09:14 -0800
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-29 09:55 -0800
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-29 21:31 +0000
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-29 23:06 -0800
                Re: Aspect questions? Novice <novice@example..com> - 2012-03-02 04:33 +0000
                Re: Aspect questions? Novice <novice@example..com> - 2012-03-04 23:00 +0000
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-03-04 17:07 -0800
                Re: Aspect questions? Novice <novice@example..com> - 2012-03-05 15:33 +0000
                JavaDoc linking (Was: Aspect questions?) Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-03-05 08:38 -0800
                Re: JavaDoc linking (Was: Aspect questions?) Novice <novice@example..com> - 2012-03-05 17:40 +0000
                Re: JavaDoc linking (Was: Aspect questions?) Patricia Shanahan <pats@acm.org> - 2012-03-05 21:25 -0800
                Re: JavaDoc linking (Was: Aspect questions?) Arne Vajhøj <arne@vajhoej.dk> - 2012-03-06 17:23 -0500
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-03-05 23:45 -0800
                Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-03-06 06:03 -0400
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-03-06 21:05 -0800
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-03-02 17:11 -0500
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-03-02 17:09 -0500
                Re: Aspect questions? Martin Gregorie <martin@address-in-sig.invalid> - 2012-02-26 23:43 +0000
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-27 05:20 +0000
                Re: Aspect questions? Patricia Shanahan <pats@acm.org> - 2012-02-26 21:32 -0800
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-27 17:36 +0000
                Re: Aspect questions? Jeff Higgins <jeff@invalid.invalid> - 2012-02-27 13:18 -0500
                Re: Aspect questions? Jeff Higgins <jeff@invalid.invalid> - 2012-02-27 14:05 -0500
                Re: Aspect questions? Jeff Higgins <jeff@invalid.invalid> - 2012-02-27 14:33 -0500
                Re: Aspect questions? Jeff Higgins <jeff@invalid.invalid> - 2012-02-27 14:53 -0500
                Re: Aspect questions? Jeff Higgins <jeff@invalid.invalid> - 2012-02-27 15:16 -0500
                Re: Aspect questions? Jeff Higgins <jeff@invalid.invalid> - 2012-02-27 17:57 -0500
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-27 22:59 +0000
                Re: Aspect questions? Jeff Higgins <jeff@invalid.invalid> - 2012-02-28 05:50 -0500
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-29 15:03 +0000
                Re: Aspect questions? Patricia Shanahan <pats@acm.org> - 2012-02-27 13:17 -0800
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-27 22:55 +0000
                Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-02-27 05:58 -0400
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-27 18:14 +0000
                Re: Aspect questions? Martin Gregorie <martin@address-in-sig.invalid> - 2012-02-28 00:12 +0000
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-28 02:04 +0000
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-27 21:22 -0500
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-29 15:11 +0000
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-03-02 17:14 -0500
                Re: Aspect questions? Martin Gregorie <martin@address-in-sig.invalid> - 2012-02-28 23:09 +0000
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-29 15:25 +0000
                Re: Aspect questions? Martin Gregorie <martin@address-in-sig.invalid> - 2012-03-01 00:22 +0000
                Re: Aspect questions? Novice <novice@example..com> - 2012-03-01 01:44 +0000
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-29 23:24 -0800
                Re: Aspect questions? Martin Gregorie <martin@address-in-sig.invalid> - 2012-03-01 21:19 +0000
                Re: Aspect questions? Novice <novice@example..com> - 2012-03-02 01:52 +0000
                Re: Aspect questions? Martin Gregorie <martin@address-in-sig.invalid> - 2012-03-03 01:39 +0000
                Re: Aspect questions? Novice <novice@example..com> - 2012-03-05 15:38 +0000
                Re: Aspect questions? Martin Gregorie <martin@address-in-sig.invalid> - 2012-03-05 22:50 +0000
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-03-05 23:46 -0800
                Re: Aspect questions? Patricia Shanahan <pats@acm.org> - 2012-03-06 08:14 -0800
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-03-06 21:23 -0800
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-03-08 20:10 -0500
                Re: Aspect questions? Novice <novice@example..com> - 2012-03-02 01:49 +0000
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-03-01 22:38 -0800
                Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-03-02 06:05 -0400
                Re: Aspect questions? Novice <novice@example..com> - 2012-03-02 14:25 +0000
                Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-03-02 18:10 -0400
                Re: Aspect questions? Novice <novice@example..com> - 2012-03-02 14:12 +0000
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-03-02 08:57 -0800
                Re: Aspect questions? Novice <novice@example..com> - 2012-03-05 15:57 +0000
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-03-05 23:48 -0800
                Re: Aspect questions? Novice <novice@example..com> - 2012-03-07 20:33 +0000
                Re: Aspect questions? Lew <lewbloch@gmail.com> - 2012-03-07 13:09 -0800
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-03-02 17:20 -0500
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-03-02 14:28 -0800
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-03-02 17:16 -0500
                Re: Aspect questions? markspace <-@.> - 2012-02-26 10:10 -0800
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-26 20:52 +0000
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-26 13:48 -0800
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-26 13:47 -0800
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 18:40 -0500
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 18:36 -0500
                Re: Aspect questions? markspace <-@.> - 2012-02-26 16:04 -0800
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 19:38 -0500
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-26 17:09 -0800
                Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-02-26 20:08 -0400
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 19:43 -0500
                Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-02-27 22:03 -0400
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-27 21:18 -0500
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-26 13:43 -0800
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-27 01:11 +0000
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-26 21:49 -0800
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-27 18:37 +0000
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-27 12:28 -0800
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-28 00:55 +0000
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-27 17:37 -0800
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-29 15:57 +0000
                Re: Aspect questions? Leif Roar Moldskred <leifm@dimnakorr.com> - 2012-02-28 03:21 -0600
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-28 09:19 -0800
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-27 21:12 -0500
                Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-02-28 05:59 -0400
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-28 17:27 -0500
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-29 16:07 +0000
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-03-02 17:26 -0500
              Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-25 18:22 -0500
                Re: Aspect questions? markspace <-@.> - 2012-02-25 20:22 -0800
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-25 22:20 -0800
                Re: Aspect questions? markspace <-@.> - 2012-02-26 00:04 -0800
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-26 00:21 -0800
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-26 00:33 -0800
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 10:43 -0500
                Re: Aspect questions? Martin Gregorie <martin@address-in-sig.invalid> - 2012-02-26 11:18 +0000
                Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-02-26 11:04 -0400
                Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-02-26 10:22 -0400
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-26 21:04 +0000
                Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-26 14:01 -0800
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 18:46 -0500
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 09:50 -0500
                Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 10:38 -0500
                Re: Aspect questions? Novice <novice@example..com> - 2012-02-26 20:49 +0000
      Re: Aspect questions? jlp <jlp@jlp.com> - 2012-02-25 09:47 +0100
        Re: Aspect questions? Novice <novice@example..com> - 2012-02-25 17:03 +0000
          Re: Aspect questions? jlp <jlp@jlp.com> - 2012-02-25 20:02 +0100
      Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-02-25 10:20 -0400
        Re: Aspect questions? markspace <-@.> - 2012-02-25 08:18 -0800
          Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-25 12:04 -0500
        Re: Aspect questions? Novice <novice@example..com> - 2012-02-25 17:17 +0000
          Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-02-25 18:40 -0400
          Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-25 18:18 -0500
      Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-25 09:21 -0500
      Re: Aspect questions? Roedy Green <see_website@mindprod.com.invalid> - 2012-02-25 14:35 -0800
  Re: Aspect questions? markspace <-@.> - 2012-02-24 14:30 -0800
    Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-24 19:47 -0500
      Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-24 20:52 -0800
        Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-25 09:31 -0500
        Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-02-25 11:05 -0400
          Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-25 12:20 -0800
  Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-24 19:00 -0500
  Re: Aspect questions? Tom Anderson <twic@urchin.earth.li> - 2012-02-25 00:22 +0000

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