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  • Good concurrency example of Java vs. Clojure

    - by Michiel Borkent
    Clojure is said to be a language that makes multi-thread programming easier. From the Clojure.org website: Clojure simplifies multi-threaded programming in several ways. Now I'm looking for a non-trivial problem solved in Java and in Clojure so I can compare/contrast their simplicity. Anyone?

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  • Where does abort() and terminate() "live"?

    - by user325016
    Regarding the terminate handler, As i understand it, when something bad happens in code, for example when we dont catch an exception, terminate() is called, which in turn calls abort() set_terminate(my_function) allows us to get terminate() to call a user specified function my_terminate. my question is: where do these functions "live" they don't seem to be a part of the language, but work as if they are present in every single cpp file, without having to include any header file.

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  • Suppress checking for changes on file system in Eclipse RCP

    - by panschk
    Okay, I guess this question is too difficult, but it's worth a try. I have an eclipse RCP application that edits HTML-files. I deal with the content of the files only in a W3C-Dom representation. There is some stuff that I can not do with that, so I the program edits each file each time after it is saved (save, save as). Of course, the file is then out of synch with the file system, and the next time I touch it, eclipse complains: "The file has been changed on the file system. Do you want to replace the editor contents with these changes? (Yes/No)" I do not want to load the changes into the editor ("No") Maybe there is a way to tell Eclipse programmatically to not check that file for changes, or to configure it to not check for changes on any file? edit: Everything has to be done either programatically or by editing some XML files. I can not expect the user to do anything;-)

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  • PHP Global variable in class is reset

    - by Robert
    I have a web form that manipulates records in a MySQL database. I have a method for displaying an edit interface for both creating new records and editing them if ($_POST['new_page']) { print "<h2>Create new page</h2>\n"; $isNew=1; $this->EditForm(); } else if($_POST['edit']){ print "<h2>Edit page</h2>\n"; $isNew=0; $this->EditForm(); } I am trying to use the global variable $isNew to determine where a record is to be added or updated. However, whenever my SaveChanges() function is run, $isNew is always 0. $isNew is declared immediately after the class declaration, outside all of the functions. class Editor{ public $isNew;

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  • qTip pop ups come in from top left of screen (on first load)

    - by franko75
    Hi, not sure if i'm set things up incorrectly - I don't seem to see anyone else with this problem, but my qTip popups (all ajax loaded content) are loading quite erratically, in that they are often animating in from off screen before appearing in the correct position. Is there a simple solution to this which I may have missed? Thanks again for your help. HTML markup: <span class="formInfo"> <a href="http://localhost/httpdocs/index.php/help/kc_dob" class="jTip" name="" id="dob_help">?</a> </span> qTip initialisation.. //set up for qtip function initQtip() { $('a.jTip').each(function() { $(this).qtip( { content: { // Set the text to an image HTML string with the correct src URL to the loading image you want to use text: '<img src="/media/images/wait.gif" alt="Loading..." />', url: $(this).attr('href') // Use the rel attribute of each element for the url to load }, position: { adjust: { screen: true // Keep the tooltip on-screen at all times } }, show: { when: 'click', solo: true // Only show one tooltip at a time }, hide: 'unfocus', style: { tip: true, // Apply a speech bubble tip to the tooltip at the designated tooltip corner border: { width: 10, radius: 10 }, width: { min: 200, max: 500 }, name: 'light' // Use the default light style } }); //prevent default event on click }).bind('click', function(event){ event.preventDefault(); return false; }); }

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  • Could I use Revert after abrupting Merge?

    - by John
    Hallo all, Just now I tried to upload a modified working copy to its branch in the following steps: 1. Update 2. Commit Then I attempted to Merge the changes in the trunk to this branch. However during editing of the conflicts I realized there were so many conflicting codes that I could not address completely today, then I gived up the Merge, and the working copy got an exclamation mark immediately. Thru Check for modifications I found that many many files had been modified or had conflicts. It seems that the Merge has been somehow wrongly carried out. My question: could I return to the state before the Merge simply using Revert? Thanks a lot in advance, John

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  • ERP system written in SQL Server, Trigger job not running

    - by user333809
    We are a manufacturing plant that runs off an ERP system written in SQL Server. I have never worked with SQL and therefore do not know the language. What I do know is that a trigger job that was running and updating data for us, is now NO longer running. Is anyone familiar enough to answer any questions about this for me??? Any help would certainly be appreciated! Thanks, Jana

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  • Copy Merge fIelds From one word document to another in VB.net

    - by MetaDan
    Hi, I'm editing a vb.net app for a mate and part of the requirements are to copy merge fields from one word document to another. I can copy them across using document.content.text but they come out as text (should've figured this i guess). I think i've got them selected by: Dim tDocFields As Microsoft.Office.Interop.Word.Fields tDocFields = tDocument.Content.Fields I'm then activating the doc i want to copy into and i think i need to then copy into that doc using the related word app. vDocument.Activate() vWord.Selection. ??? Insert() ??? Any pointers would be greatly appreciated... Am i on the right lines even?

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  • Exceptions not being caught

    - by Thomas Freudenberg
    We have following code: try { // some code throwing MyException } catch (MyException ex) { // [1] // no (re)throw here } catch (Exception ex) { if (ex is MyException) { // [2] } } If we run the code without a debugger attached, everything runs fine. However, IF we debug the code, we don't get to point [1] but [2]. As far as I understand the language specification this should not be possible. Even weirder, this code used run fine even while debugging. The strange behavior started only a few days ago.

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  • emacs: is there a semantic-jump-to-declaration (using semantic.el)?

    - by Cheeso
    Suppose I am editing a buffer containing C code. I have started semantic with semantic-load-enable-code-helpers . I have point placed on the name of a function . If I then invoke senator-jump I can jump to the place where that fn is first declared, in that module. What if it is an extern? Is it possible to use senator to jump to the definition of the fn, which resides in a separate module? Thanks.

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  • Use Shakespeare-text and external file

    - by Adam
    How can I convert the below example to use an external file instead of the embedded lazy text quasi quotes? {-# LANGUAGE QuasiQuotes, OverloadedStrings #-} import Text.Shakespeare.Text import qualified Data.Text.Lazy.IO as TLIO import Data.Text (Text) import Control.Monad (forM_) data Item = Item { itemName :: Text , itemQty :: Int } items :: [Item] items = [ Item "apples" 5 , Item "bananas" 10 ] main :: IO () main = forM_ items $ \item -> TLIO.putStrLn [lt|You have #{show $ itemQty item} #{itemName item}.|] This is from the yesod online book.

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  • Browser Issue: Charts are not rendered on IE8

    - by Rachel
    We have inhouse library which uses canvas for displaying charts in my application. And dojo as scripting language.Everything is fine, but my charts are not appearing in IE8. I google about this, and found that there is some VML issue in IE8. I found this: var printChart = function(time, freq){ if (!document.namespaces['g_vml_']) { document.namespaces.add('g_vml_', 'urn:schemas-microsoft-com:vml', '#default#VML'); } if (!document.namespaces['g_o_']) { document.namespaces.add('g_o_', 'urn:schemas-microsoft-com:office:office', '#default#VML'); } if (freq === undefined) { this.freq = "1mi"; } if (time === undefined) { this.time = "1dy"; } self.reload(); } Now I was trying to add this in my DOJO code and that is creating problem. As when I do document.namespace I get firebug error 'document.namespaces is undefined'. Q: How can we fix this, are the any better alternative approaches for the same, basic problem am having is browser related, charts are rendered properly on other browsers but not on IE8, any suggestions ? Update: What are ways to deal with such cross browser issue ?

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  • Django tutorial says I haven't set DATABASE_ENGINE setting yet... but I have

    - by Joe
    I'm working through the Django tutorial and receiving the following error when I run the initial python manage.py syncdb: Traceback (most recent call last): File "manage.py", line 11, in <module> execute_manager(settings) File "/Library/Python/2.6/site-packages/django/core/management/__init__.py", line 362 in execute_manager utility.execute() File "/Library/Python/2.6/site-packages/django/core/management/__init__.py", line 303, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "/Library/Python/2.6/site-packages/django/core/management/base.py", line 195, in run_from_argv self.execute(*args, **options.__dict__) File "/Library/Python/2.6/site-packages/django/core/management/base.py", line 222, in execute output = self.handle(*args, **options) File "/Library/Python/2.6/site-packages/django/core/management/base.py", line 351, in handle return self.handle_noargs(**options) File "/Library/Python/2.6/site-packages/django/core/management/commands/syncdb.py", line 49, in handle_noargs cursor = connection.cursor() File "/Library/Python/2.6/site-packages/django/db/backends/dummy/base.py", line 15, in complain raise ImproperlyConfigured, "You haven't set the DATABASE_ENGINE setting yet." django.core.exceptions.ImproperlyConfigured: You haven't set the DATABASE_ENGINE setting yet. My settings.py looks like: DATABASES = { 'default': { 'ENGINE': 'django.db.backends.mysql', # Add 'postgresql_psycopg2', 'postgresql', 'mysql', 'sqlite3' or 'oracle'. 'NAME': 'dj_tut', # Or path to database file if using sqlite3. 'USER': '', # Not used with sqlite3. 'PASSWORD': '', # Not used with sqlite3. 'HOST': '', # Set to empty string for localhost. Not used with sqlite3. 'PORT': '', # Set to empty string for default. Not used with sqlite3. } } I'm guessing this is something simple, but why isn't it seeing the ENGINE setting?

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  • PHP Function parameters - problem with var not being set

    - by Marty
    So I am obviously not a very good programmer. I have written this small function: function dispAdjuggler($atts) { extract(shortcode_atts(array( 'slot' => '' ), $atts)); $adspot = ''; $adtype = ''; // Get blog # we're on global $blog_id; switch ($blog_id) { case 1: // root blog HOME page if (is_home()) { switch ($slot) { case 'top_leaderboard': $adspot = '855525'; $adtype = '608934'; break; case 'right_halfpage': $adspot = '855216'; $adtype = '855220'; break; case 'right_med-rectangle': $adspot = '858222'; $adtype = '613526'; break; default: throw new Exception("Ad slot is not defined"); break; } When I reference the function on a page like so: <?php dispAdjuggler("top_leaderboard"); ?> The switch is throwing the default exception. What am I doing wrong here? Thanks!!

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  • Is there any difference between Spring and Spring.net?

    - by Javi
    Hello, I've been using Spring with Java and I've seen that there is a version called Spring.NET. I wonder if there is any significant difference between them (apart from that one is for Java and the other is for .NET). Is it just a "language translation" of the framework or are they different project with just a similar purpose? Thanks.

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  • Mood for coding

    - by dole doug
    When you don't have the mood for coding, how do you get it? Now I'm working on a project that I don't like at all, besides is a new programming language for me and I have to do it alone. So, the question is: how do you get the mood for coding? Any tips/tricks are welcome :)

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  • How to quickly learn Python and Ruby frameworks coming from a PHP background.

    - by mdm414
    I've been using CakaPHP and Kohanaphp but now I want to try out other frameworks from a more sophisticated OOP language for my next projects. How can I learn the following frameworks quickly so I can immediately pick what to use: Pylons Sinatra Ramaze Tutorials and examples from online resources would really be great. For php developers who've already underwent this learning experience, please share yours. Thanks

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  • How do I display the current value of an Android Preference in the Preference summary?

    - by nyenyec
    This must come up very often. When the user is editing preferences in an Android app, I'd like them to be able to see the currently set value of the preference in the Preference summary. Example: if I have a Preference setting for "Discard old messages" that specifies the number of days after which messages need to be cleaned up. In the PreferenceActivity I'd like the user to see: "Discard old messages" <- title "Clean up messages after x days" <- summary where x is the current Preference value Extra credit: make this reusable, so I can easily apply it to all my preferences regardless of their type (so that it work with EditTextPreference, ListPreference etc. with minimal amount of coding).

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  • Rendering a different controller and action while keeping errors

    - by DerNalia
    I have a form in one controller(A) that renders a partial from another controller(B), and stays on A's edit page during editing / updating etc. However... When the partial form form controller B has an error, the error doesn't show up on A's edit page right now, if there is an error, I am doing (in controller B's update method) redirect_to :controller => "A", :action => "edit" and then this is built in... but I don't know what to do with it... the error needs to be sent to controller A... but.. it doesn't format.xml { render :xml => @varFromB.errors, :status => :unprocessable_entity } thanks

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