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  • HttpServletRequest.getServerName() occasionally returning null in concurrent use?

    - by oconnor0
    Under JBoss 4.0.1SP1, I have a servlet that makes multiple, concurrent calls to web services that are running under the same instance. I'm using request.getServerName() (on HttpServletRequest) to construct the endpoint URL. This normally works fine, but every once in a while returns null. I hadn't seen this before running the web service requests in parallel, and so I guessed that sharing the HttpServletRequest among threads won't always work or something. Any ideas on fixing this?

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  • xcode provision error

    - by eda
    i installed and setup all the certificates, provisions , etc. and selected the did what was needed in the project edit page. i have the device in the usb and once i build i get this error. The iPhone “myname” doesn’t have the provisioning profile with which the application was signed. i have tried everything, read tutorials and what i can to get this to work. what are some things i can try that you have? tahnks

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  • Android - Buffering Lag with VideoView

    - by Chris
    I am using VideoView to display a video in my app. The problem is that, once the layout gets created there is lag of almost 10-30 seconds before which the video starts to play. I can see in LogCat that the video is buffering during the lag. Is there a way I can minimize this lag, or tell MediaPlayer to play the video sooner? Thanks Chris

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  • Setting a variable to undefined

    - by AJ
    Hello, I'm a bit confused about Javascript undefined & null. Firstly what does if (!testvar) actually do? Does it test for undefined and null or just undefined? Secondly, once a variable is defined can I clear it back to undefined (therefore deleting the variable). Thirdly, can I pass undefined as a parameter? e.g: function test(var1, var2, var3) { } test("value1", undefined, "value2") Thanks, AJ

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  • Display processing page then redirect when complete

    - by user285379
    I have a script that takes a while. I'd like to display a page during the processing of the script then redirect when the process is complete. E.g.: form.php - processing.php - display_result.php I would like that processing.php is displayed immediately after form is submitted showing (Processing your information, please wait...) Once processing is complete the page should be redirected to display_result.php Is there anyway to sort of flush the content to the browser before processing begins, then redirect when the process is complete?

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  • How do I pass a variable number of parameters along with a callback function?

    - by Bungle
    I'm using a function to lazy-load the Sizzle selector engine (used by jQuery): var sizzle_loaded; // load the Sizzle script function load_sizzle(module_name) { var script; // load Sizzle script and set up 'onload' and 'onreadystatechange' event // handlers to ensure that external script is loaded before dependent // code is executed script = document.createElement('script'); script.src = 'sizzle.min.js'; script.onload = function() { sizzle_loaded = true; gather_content(module_name); }; script.onreadystatechange = function() { if ((script.readyState === 'loaded' || script.readyState === 'complete') && !sizzle_loaded) { sizzle_loaded = true; gather_content(module_name); } }; // append script to the document document.getElementsByTagName('head')[0].appendChild(script); } I set the onload and onreadystatechange event handlers, as well as the sizzle_loaded flag to call another function (gather_content()) as soon as Sizzle has loaded. All of this is needed to do this in a cross-browser way. Until now, my project only had to lazy-load Sizzle at one point in the script, so I was able to just hard-code the gather_content() function call into the load_sizzle() function. However, I now need to lazy-load Sizzle at two different points in the script, and call a different function either time once it's loaded. My first instinct was to modify the function to accept a callback function: var sizzle_loaded; // load the Sizzle script function load_sizzle(module_name, callback) { var script; // load Sizzle script and set up 'onload' and 'onreadystatechange' event // handlers to ensure that external script is loaded before dependent // code is executed script = document.createElement('script'); script.src = 'sizzle.min.js'; script.onload = function() { sizzle_loaded = true; callback(module_name); }; script.onreadystatechange = function() { if ((script.readyState === 'loaded' || script.readyState === 'complete') && !sizzle_loaded) { sizzle_loaded = true; callback(module_name); } }; // append script to the document document.getElementsByTagName('head')[0].appendChild(script); } Then, I could just call it like this: load_sizzle(module_name, gather_content); However, the other callback function that I need to use takes more parameters than gather_content() does. How can I modify my function so that I can specify a variable number of parameters, to be passed with the callback function? Or, am I going about this the wrong way? Ultimately, I just want to load Sizzle, then call any function that I need to (with any arguments that it needs) once it's done loading. Thanks for any help!

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  • Is there a jQuery webscrapper out there?

    - by victor hugo
    I'm trying to pullout some info from an external site using jQuery and Adobe AIR. Right now I'm using a hidden div and jQuery's load function to load fragments of the external site, once the info is loaded I parse some info with selectors. This is fine but it's kinda dirty and I need to perform this several times (don't want to need many hidden divs). Just wondering if anybody knows a good webscrapper written in jQuery or maybe another method I'm missing

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  • How can i use a duration setting on .animate if it is inside the callback from a .fadeOut effect?

    - by Jannis
    I am trying to just fade the content of section#secondary out and once the content has been faded out, the parent (section#secondary) should animate 'shut' in a slider animation. All this is working however the durations are not and I cannot figure out why. Here is my code: HTML <section id="secondary"> <a href="#" class="slide_button">&laquo;</a> <!-- slide in/back button --> <article> <h1>photos</h1> <div class="album_nav"><a href="#">photo 1 of 6</a> | <a href="#">create an album</a></div> <div class="bar"> <p class="section_title">current image title</p> </div> <section class="image"> <div class="links"> <a class="_back album_link" href="#">« from the album: james new toy</a> <nav> <a href="#" class="_back small_button">back</a> <a href="#" class="_next small_button">next</a> </nav> </div> <img src="http://localhost/~jannis/3781_doggie_wonderland/www/preview/static/images/sample-image-enlarged.jpg" width="418" height="280" alt="" /> </section> </article> <footer> <embed src="http://localhost/~jannis/3781_doggie_wonderland/www/preview/static/flash/secondary-footer.swf" wmode="transparent" width="495" height="115" type="application/x-shockwave-flash" /> </footer> </section> <!-- close secondary --> jQuery // ============================= // = Close button (slide away) = // ============================= $('a.slide_button').click(function() { $(this).closest('section#secondary').children('*').fadeOut('slow', function() { $('section#secondary').animate({'width':'0'}, 3000); }); }); Because the content of section#secondary is variable I use the * selector. What happens is that the fadeOut uses the appropriate slow speed but as soon as the callback fires (once the content is faded out) the section#secondary animates to width: 0 within a couple of milliseconds and not the 3000 ms ( 3 sec ) I set the animation duration to. Any ideas would be appreciated. PS: I cannot post an example at this point but since this is more a matter of theory of jQuery I don't think an example is necessary here. Correct me if I am wrong..

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  • google app engine persistent globals

    - by Joey
    Hi, I'm looking for a way to keep the equivalent of persistent global variables in app engine (python). What I'm doing is creating a global kind that I initialize once (i.e. when I reset all my database objects when I'm testing). I have things in there like global counters, or the next id to assign certain kinds I create. Is this a decent way to do this sort of thing or is there generally another approach that is used?

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  • IE only jQuery bug

    - by Greg-J
    jsbin for reference: http://jsbin.com/edago3/5/ When viewed in any other browser, the toggler works as you would expect it to. However, in IE (I'm using 8), you can only contract the currently expanded sub menu, and then you get undesired results once it is closed.

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  • table to updated after selection with uipicker

    - by Guille10k
    An UIPicker shows up when I select a row in a table, so I can choose some things I want to be displayed on the same row. How can I update the table once I finished with the uipicker? I used reloadData right after the call to the picker, but the code is executed before I do "Done" on the picker. Some idea? Thank u

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  • Flex project architecture ?

    - by Tony
    What's the best way to organize functionality modules in a flex project? I saw some people put all modules in one view stack ,and so the application interface is only load once, but when the application get larger, the whole compiled swf would be very big. If we put swfs in different pages, we pass request parameters through HTTP request, we lost the benefits from flex RPC services, slow loading, and we can't see any superior comparing to php,asp,jsp... what's the best practice to organize front end architecture?

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  • Triggering event when Button is pressed down in Android

    - by Cody
    I have the following code for Android which works fine to play a sound once a button is clicked: Button SoundButton2 = (Button)findViewById(R.id.sound2); SoundButton2.setOnClickListener(new OnClickListener() { public void onClick(View v) { mSoundManager.playSound(2); } }); My problem is that I want the sound to play immediately upon pressing the button (touch down), not when it is released (touch up). Any ideas on how I can accomplish this?

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  • How does one set multiple cache-control directives in ASP.NET

    - by strongopinions
    I have to have several certain cache-control directives set on an ASP.NET page in order to pass a Hailstorm security scan. For example, it wants me to have Cache-control: no-cache="set-cookie" in addition to Cache-control: no-cache I have been setting the latter with the following line in my C# codebehind: Response.CacheControl = "no-cache"; Is there a special way to indicate both directives at once? Do I just separate them with a semicolon?

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  • Regex: How do I match some regex logic 1 or more times?

    - by tom
    I already have some regex logic which says to look for a div tag with class=something. However, this might occur more than once (one after another). You can't simply add square brackets around that complex regex logic already (e.g. [:some complicated regex logic already existing:]* -- so how do you do it in regex? I want to avoid having to use the programming language logic to append that regex logic after itself if I can... Thanks

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  • log4j properties file: how to configure ?

    - by EugeneP
    Is it right that the procedure of using log4j looks like this: 1) put a .properties file somewhere in a project folder 2) in an initialization method, that runs only once, invoke PropertyConfigurator.configure("path_to_file"); 3) in every method we need to use logger we define a static logger variable and simply invoke getLogger(class) I'm asking you this: what if the initialization module is not defined? Where to put "log4j.properties" file so that we wouldn't need to invoke propertyconfigurator.configure at all, or if it's not possible, is it ok to invoke PropertyConfigurator.configure("path_to_file") in every method that uses a logger?

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  • Xcode acting strange

    - by Moshe
    I am typing code from Head First iPhone Development (O'reilly) and Xcode will build and run fine once and then, without any modification to the code, the second build will fail. Why?(I'm using command+R)

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  • How to create a column that can never be updated?

    - by Randy Minder
    In SQL Server 2008, is it possible to create a column that can have a value inserted into it, but can never be updated? In other words, the column can have an initial value inserted into it, but once it contains a non-null value, it can never be changed. If possible, I would prefer to do it without using a trigger. Thanks - Randy

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  • How to insert a child node in a TreeView Control in WPF?

    - by xarzu
    I have a TreeView control that I have created in XAML in a WPF program After adding a couple nodes at the root level, I have written code that loops through the tree structure like so: ItemCollection items = treeView1.Items; foreach (TreeViewItem n in items) { ... } Once I find the place in this loop where I want to include a child node, how do I go about inserting a child?

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