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  • JNI Method not found

    - by Select Call
    I have been receiving this error for my JNI code while I tried find the method ,using GetMethodID, my Java method is in an Interface. Here is my interface public interface printReader { public printImg readerPrint(String selectedName) throws Exception; } Native code WprintImgIMPL.h class WprintImgIMPL: public IWprintReader { public: WprintImgIMPL(JNIEnv *env, jobject obj); ~WprintImgIMPL(void); virtual WprintImg readerPrint(char* readerName) ; ..... ..... private: JNIEnv *m_Env; jobject m_jObj; } WprintImgIMPL.cpp WprintImg WprintImgIMPL::readerPrint(char* readerName) { jclass cls = m_Env->GetObjectClass (m_jObj); jmethodID mid = m_Env->GetMethodID (cls, "readerPrint", "(Ljava/lang/String;)Lcom/site/name/printImg;"); ....... ....... } Java code public class printReaderIMPL implements printReader { static final String DEBUG_TAG = ""; android.net.wifi.WifiManager.MulticastLock lock; Context _context; public printReaderIMPL (Context context) { _context = context; } @Override public printImg readerPrint(String selectedName) throws Exception { Log.e(DEBUG_TAG, "readerPrint"); } } Constructor/destructor WprintImgIMPL(JNIEnv *env, jobject obj){ m_Env = env; m_jobj = env->NewGlobalRef(obj); } ~WprintImgIMPL(void) { m_Env->DeleteGlobalRef(m_jobj); } Error: GetMethodID: method not found: Lcom/site/name/NativeCode;.printImg:(Ljava/lang/String;)Lcom/site/name/printImg; Signature are checked twice , after failure I generated again using Javap tool . Thank you if you can input /comment and help in fixing this bug.

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  • Suggestions on Working with this Inherited Generic Method

    - by blu
    We have inherited a project that is a wrapper around a section of the core business model. There is one method that takes a generic, finds items matching that type from a member and then returns a list of that type. public List<T> GetFoos<T>() { List<IFoo> matches = Foos.FindAll( f => f.GetType() == typeof(T) ); List<T> resultList = new List<T>(); foreach (var match in matches) { resultList.Add((T)obj); } } Foos can hold the same object cast into various classes in inheritance hierarchy to aggregate totals differently for different UI presentations. There are 20+ different types of descendants that can be returned by GetFoos. The existing code basically has a big switch statement copied and pasted throughout the code. The code in each section calls GetFoos with its corresponding type. We are currently refactoring that into one consolidated area, but as we are doing that we are looking at other ways to work with this method. One thought was to use reflection to pass in the type, and that worked great until we realized the Invoke returned an object, and that it needed to be cast somehow to the List <T>. Another was to just use the switch statement until 4.0 and then use the dynamic language options. We welcome any alternate thoughts on how we can work with this method. I have left the code pretty brief, but if you'd like to know any additional details please just ask.

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  • Calling methods or functions with Jquery

    - by Ross
    So I can call a php page using jquery $.ajax({ type: "GET", url: "refresh_news_image.php", data: "name=" + name, success: function(html) { alert(html) $('div.imageHolder').html(html); } }); However this getting a bit messy, I have a few .php files that only really preform very simple tasks. If I want to call a method $images-refresh_image(); is this possible. Failing that I could just create a big file with lots of functions in it? Thanks, Ross

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  • Proper way to return an array

    - by Ward
    Hey there, I never seem to get this right. I've got a method that returns a mutable array. What is the proper way to return the array and avoid potential memory leaks? If I plan to store the results locally inside another view controller, does that affect the way the array should be returned? Lastly, what if it's just an non-mutable array? Does that require a different technique? thanks, Howie

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  • how is FLUENT api different from other API

    - by intern
    i have come across fluent api while studying DSLs. i have searched alot on FLUENT API..the basic conclusion which i could draw out was that fluent api uses method chaining in order to make the code fluent. but i cannot understand that in object oriented languages we can always create an object and can call the methods related to it. then how is FLUENT api different from it? what other features does fluent api add?

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  • Delegates and ParamArray - Workaround Suggestions?

    - by M.A. Hanin
    Some predefined methods contain a ParamArray in their signature. Delegates, however, cannot contain a ParamArray in their signature. Main question: Assume you wish to create a delegation mechanism for a specific method which requires a ParamArray. How would you work around this constraint? "Bonus" question: Assume you wish to create a generalized delegation mechanism for all methods which require ParamArray, how would you do that?

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  • Why can't you call abstract functions from abstract classes in PHP?

    - by incrediman
    I've set up an abstract parent class, and a concrete class which extends it. Why can the parent class not call the abstract function? //foo.php <?php abstract class AbstractFoo{ abstract public static function foo(); public static function getFoo(){ return self::foo();//line 5 } } class ConcreteFoo extends AbstractFoo{ public static function foo(){ return "bar"; } } echo ConcreteFoo::getFoo(); ?> Error: Fatal error: Cannot call abstract method AbstractFoo::foo() in foo.php on line 5

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  • alias_method and class_methods don't mix?

    - by Daniel
    Greetings, I've been trying to tinker with a global Cache module, but I can't figure out why this isn't working. Does anyone have any suggestions? This is the error produced for the below code: NameError: undefined method get' for moduleCache' from (irb):21:in `alias_method' module Cache def self.get puts "original" end end module Cache def self.get_modified puts "New get" end end def peek_a_boo Cache.module_eval do # make :get_not_modified alias_method :get_not_modified, :get alias_method :get, :get_modified end Cache.get Cache.module_eval do alias_method :get, :get_not_modified end end # test first round peek_a_boo # test second round peek_a_boo TIA! -daniel

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  • Simple way to create possible case

    - by bugbug
    I have lists of data such as a = [1,2,3,4] b = ["a","b","c","d","e"] c = ["001","002","003"] And I want to create new another list that was mixed from all possible case of a,b,c like this d = ["1a001","1a002","1a003",...,"4e003"] Is there any module or method to generate d without write many for loop?

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  • Passing parameter as final in C#

    - by Ravisha
    This might be a duplicate question.But could not find it in search In java to mark a method parameter as constant we declare it as final whats the equivalent C# keyword? Like: public void doSomeThing(final object myObject) { //print myobject }

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  • Visual Studio code generated when choosing to explicitly implement interface

    - by fearofawhackplanet
    Sorry for the vague title, but I'm not sure what this is called. Say I add IDisposable to my class, Visual Studio can create the method stub for me. But it creates the stub like: void IDisposable.Dispose() I don't follow what this syntax is doing. Why do it like this instead of public void Dispose()? And with the first syntax, I couldn't work out how to call Dispose() from within my class (in my destructor).

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  • Is an Object the smallest pageable unit in the Heap?

    - by DonnieKun
    Hi, If I have a 2 GB ram and I have an 2 instances of an Object which is 1.5 GB each, the operating system will help and context switch the pages to and from harddisk. What if I have 1 instances but is 3 GB. Can the same paging method breakdown this instances into 2 pages? Or will I encounter out-of-memory issue? Thanks.

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  • setting up Ubuntu 10.10 as paravirtualized guest in Xen on RHEL5 host - what kernel?

    - by kostmo
    I've discovered the tool ubuntu-vm-builder, which I've installed and then invoked on an Ubuntu workstation as: sudo vmbuilder xen ubuntu --suite maverick --flavour virtual --arch amd64 --mem=512 --rootsize 8192 This workstation is not the intended target host of the virtual machine, however; I would like to host the guest on a Red Hat Enterprise Linux 5 machine that is running Xen 3.0.3. The output of this command appears to be a folder named ubuntu-xen containing three files: tmpXXXXXX, a very large file which I assume is the root partition image tmpYYYYYY, a somewhat large file which I assume is the swap partition image xen.conf, a text file I have copied the xen.conf file to the RHEL server's /etc/xen directory under the new name newvm, adjusting the paths of tempXXXXXX and tempYYYYYYin the file after also copying them from my local workstation to the RHEL server. When I launch the Virtual Machine Manager virt-manager, I can see the newvm virtual machine listed underneath the Dom0 machine. When I try to start newvm, I get the error: Error starting domain: virDomainCreate() failed POST operation failed: (xend.err 'Error creating domain: Kernel image does not exist: None') Indeed, there exists an entry kernel = 'None' in the xen.conf file. How do I find out what the path of the kernel should be? Is this path supposed to be to a kernel stored on the local filesystem of the RHEL5 host, or is it supposed to be a path inside the guest image? I see that the vmbuilder command provides for a --xen-kernel option, along with a --xen-ramdisk option, but I'm not sure what to use for either. I think I should be able to get this to work, since Ubuntu is said to be supported as a Xen guest, even though the Xen 4.0.1 docs state support for only a limited set of distributions, Ubuntu excluded. Update 1 When running vmbuilder on my local workstation, I did observe an output line saying: Calling hook: install_kernel and later, output lines saying: update-initramfs: Generating /boot/initrd.img-2.6.35-23-virtual [...] run-parts: executing /etc/kernel/postinst.d/initramfs-tools 2.6.35-23-virtual /boot/vmlinuz-2.6.35-23-virtual So in the xen.conf file, I tried setting the lines: kernel = '/boot/vmlinuz-2.6.35-23-virtual' ramdisk = '/boot/initrd.img-2.6.35-23-virtual' When trying to start the VM, I got an error similar to last time: Error starting domain: virDomainCreate() failed POST operation failed: (xend.err 'Error creating domain: Kernel image does not exist: /boot/vmlinuz-2.6.35-23-virtual') This makes me think that the RHEL5 machine is looking for local files, rather than a file within the binary guest disk image. After running sudo updatedb on my workstation, neither of those files were found. If the vmbuilder tool had tried to install them, it must have failed. Update 2 I was able to extract the kernel and initrd images from the guest disk binary by mounting it: mkdir mnt_tmp sudo mount ubuntu-xen/tmpXXXXXX mnt_tmp/ -o loop cp mnt_tmp/boot/vmlinuz-2.6.35-23-virtual virtual_kernel_ubuntu cp mnt_tmp/boot/initrd.img-2.6.35-23-virtual virtual_initrd_ubuntu These two files I copied to the RHEL5 server, and edited the xen.conf file to point to them as kernel and ramdisk. With this done, I could "run" the newvm virtual machine from within virt-manager, but was met with the message Console Not Configured For Guest when I double clicked the entry to open the Virtual Machine Console. As suggested by a forum, I then added the line vfb = [ 'type=vnc' ] to the configuration file, recreated the virtual machine (a ~10 min process), and this time got the message: Connecting to console for guest This remained indefinitely; after selecting View - Serial Console, I found a kernel panic: [5442621.272173] Kernel panic - not syncing: Attempted to kill the idle task! [5442621.272179] Pid: 0, comm: swapper Tainted: G D 2.6.35-23-virtual #41-Ubuntu [5442621.272184] Call Trace: [5442621.272191] [<ffffffff815a1b81>] panic+0x90/0x111 [5442621.272199] [<ffffffff810652ee>] do_exit+0x3be/0x3f0 [5442621.272204] [<ffffffff815a5e20>] oops_end+0xb0/0xf0 [5442621.272211] [<ffffffff8100ddeb>] die+0x5b/0x90 [5442621.272216] [<ffffffff815a56c4>] do_trap+0xc4/0x170 [5442621.272221] [<ffffffff8100ba35>] do_invalid_op+0x95/0xb0 [5442621.272227] [<ffffffff8130851c>] ? intel_idle+0xac/0x180 [5442621.272232] [<ffffffff810072bf>] ? xen_restore_fl_direct_end+0x0/0x1 [5442621.272239] [<ffffffff815a48fe>] ? _raw_spin_unlock_irqrestore+0x1e/0x30 [5442621.272247] [<ffffffff8108dfb7>] ? tick_broadcast_oneshot_control+0xc7/0x120 [5442621.272253] [<ffffffff8100ad5b>] invalid_op+0x1b/0x20 [5442621.272259] [<ffffffff8130851c>] ? intel_idle+0xac/0x180 [5442621.272264] [<ffffffff813084e0>] ? intel_idle+0x70/0x180 [5442621.272269] [<ffffffff810072bf>] ? xen_restore_fl_direct_end+0x0/0x1 [5442621.272275] [<ffffffff8148a147>] cpuidle_idle_call+0xa7/0x140 [5442621.272281] [<ffffffff81008d93>] cpu_idle+0xb3/0x110 [5442621.272286] [<ffffffff815873aa>] rest_init+0x8a/0x90 [5442621.272291] [<ffffffff81b04c9d>] start_kernel+0x387/0x390 [5442621.272297] [<ffffffff81b04341>] x86_64_start_reservations+0x12c/0x130 [5442621.272303] [<ffffffff81b08002>] xen_start_kernel+0x55d/0x561 Update 3 I tried an i386 architecture instead of amd64, but got the same kernel panic. Also, it seems the Virtual Machine Manager pays attention to the format of the filename of the kernel; for the same kernel binary, I tried simply naming it vmlinuz-virtual, which threw out an error box about an invalid kernel. When I named it vmlinuz-2.6.35-23-virtual, it did not throw the error, but it did still result in the kernel panic shortly thereafter.

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  • Best Method to SFTP or FTPS Files via SSIS

    - by Registered User
    What is the best method using SSIS (SQL Server Integration Services) to upload a file to either a remote SFTP (secure FTP with SSH2 protocal) or FTPS (FTP over SSL) site? I've used the following methods, but each has short-comings I would like to avoid: COZYROC LIBRARY Method: Install the CozyRoc library on each development and production server and use the SFTP task to upload the files. Pros: Easy to use. It looks, smells, and feels like a normal SSIS task. SSIS also recognizes the password as sensitive information and allows you all the normal options for protecting the sensitive information instead of just storing it in clear text in a non-secure manner. Works well with other SSIS tasks such as ForEach Loop Containers. Errors out when uploads and downloads fail. Works well when you don't know the names of the files on the remote FTP site to download or when you won't know the name of the file to upload until run-time. Cons: Costs money to license in a production environment. Makes you dependent upon the vendor to update their libraries between each version. Although they already have a 2008 version, this caused me a problem during the CTP's of 2008. Requires installing the libraries on each development and production machine. COMMAND LINE SFTP PROGRAM Method: Install a free command-line SFTP application such as Putty and execute it either by running a batch file or operating system process task. Pros: Free, free, and free. You can be sure it is secure if you are using Putty since numerous GUI FTP clients appear to use Putty under the covers. You DEFINATELY know you are using SSH2 and not SSH. Cons: The two command-line utilities I tried (Putty and Cygwin) required storing the SFTP password in a non-secure location. I haven't found a good way to capture failures or errors when uploading files. The process doesn't look and smell like SSIS. Most of the code is encapsulated in text files instead of SSIS itself. Difficult to use if you don't know the exact name of the file you are uploading or downloading. A 3RD PARTY C# or VB.NET LIBRARY Method: Install a SFTP or FTPS library and use a Script Task that references the library to upload the files. (I've never tried this, so I'm going to guess at the pros and cons) Pros: Probably easy to capture errors. Should work well with variables, so it would probably be easy to use even when you don't know the exact name of the file you are uploading or downloading. Cons: It's a script task combined with .NET libraries. If you are using SSIS, then you probably are more comfortable with SSIS tasks then .NET code. Script tasks are also difficult to troubleshoot since they don't have the same debugging tools and features as regular .NET projects. Creates a dependency on 3rd party code that may not work between different versions of SQL Server. To be fair, it is probably MORE likely to work between different versions of SQL Server than a 3rd party SSIS task library. Another huge con -- I haven't found a free C# or VB.NET library that does this as of yet. So if anyone knows of one, then please let me know!

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  • using Silverlight 3's HtmlPage.Window.Navigate method to reuse an already open browser window

    - by Phil
    Hi, I want to use an external browser window to implement a preview functionality in a silverlight application. There is a list of items and whenever the user clicks one of these items, it's opened in a separate browser window (the content is a pdf document, which is why it is handled ouside of the SL app). Now, to achieve this, I simply use HtmlPage.Window.Navigate(new Uri("http://www.bing.com")); which works fine. Now my client doesn't like the fact that every click opens up a new browser window. He would like to see the browser window reused every time an item is clicked. So I went out and tried implementing this: Option 1 - Use the overload of the Navigate method, like so: HtmlPage.Window.Navigate(new Uri("http://www.bing.com"), "foo"); I was assuming that the window would be reused when the same target parameter value (foo) would be used in subsequent calls. This does not work. I get a new window every time. Option 2 - Use the PopupWindow method on the HtmlPage HtmlPage.PopupWindow(new Uri("http://www.bing.com"), "blah", new HtmlPopupWindowOptions()); This does not work. I get a new window every time. Option 3 - Get a handle to the opened window and reuse that in subsequent calls private HtmlWindow window; private void navigationButton_Click(object sender, RoutedEventArgs e) { if (window == null) window = HtmlPage.Window.Navigate(new Uri("http://www.bing.com"), "blah"); else window.Navigate(new Uri("http://www.bing.com"), "blah"); if (window == null) MessageBox.Show("it's null"); } This does not work. I tried the same for the PopupWindow() method and the window is null every time, so a new window is opened on every click. I have checked both the EnableHtmlAccess and the IsPopupWindowAllowed properties, and they return true, as they should. Option 4 - Use Eval method to execute some custom javascript private const string javascript = @"var popup = window.open('', 'blah') ; if(popup.location != 'http://www.bing.com' ){ popup.location = 'http://www.bing.com'; } popup.focus();"; private void navigationButton_Click(object sender, RoutedEventArgs e) { HtmlPage.Window.Eval(javascript); } This does not work. I get a new window every time. option 5 - Use CreateInstance to run some custom javascript on the page private void navigationButton_Click(object sender, RoutedEventArgs e) { HtmlPage.Window.CreateInstance("thisIsPlainHell"); } and in my aspx I have function thisIsPlainHell() { var popup = window.open('http://www.bing.com', 'blah'); popup.focus(); } Guess what? This does work. The only thing is that the window behaves a little strange and I'm not sure why: I'm behind a proxy and in all other scenarios I'm being prompted for my password. In this case however I am not (and am thus not able to reach the external site - bing in this case). This is not really a huge issue atm, but I just don't understand what's goign on here. Whenever I type another url in the address bar of the popup window (eg www.google.com) and press enter, it opens up another window and prompts me for my proxy password. As a temporary solution option 5 could do, but I don't like the fact that Silverlight is not able to manage this. One of the main reasons my client has opted for Silverlight is to be protected against all the browser specific hacking that comes with javascript. Am I doing something wrong? I'm definitely no javascript expert, so I'm hoping it's something obvious I'm missing here. Cheers, Phil

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  • Progressbar blocks notiyfyDatasetChanged() method in Android

    - by pathfinder
    I'm trying to display a ProgressBar while a listview is being populated. This is my XML <FrameLayout android:layout_width="fill_parent" android:layout_height="wrap_content" > <ListView android:id="@android:id/list" android:layout_width="fill_parent" android:layout_height="fill_parent" android:divider="@null" android:dividerHeight="0dp" android:fadingEdge="none" > </ListView> <ProgressBar android:id="@+id/doProgress" android:layout_width="60dp" android:layout_height="60dp" android:layout_gravity="center" /> </FrameLayout> ProgressBar's visibiliy has been changed in the onPostExecuteMethod when the whole listview is loaded. AsyncTask Code: public class WhatToDoLoader extends AsyncTask<String, String, String> { ProgressDialog progress = new ProgressDialog(WhatToDo.this); String url = "http://wearedesigners.net/clients/clients12/tourism/fetchWhatToDoList.php"; final String TAG_MAIN = "item"; final String TAG_ID = "itemId"; final String TAG_NAME = "itemName"; final String TAG_DETAIL = "itemDetailText"; final String TAG_ITEM_IMAGE = "itemImages"; final String TAG_MAP = "itemMapData"; final String TAG_MAP_IMAGE = "mapImage"; @Override protected void onProgressUpdate(String... values) { // TODO Auto-generated method stub super.onProgressUpdate(values); adapter.notifyDataSetChanged(); } @Override protected void onPreExecute() { // TODO Auto-generated method stub super.onPreExecute(); /* * progress.setMessage("Loading What To Do List"); progress.show(); */ } @Override protected String doInBackground(String... params) { XMLParser parser = new XMLParser(); String xml = parser.getXmlFromUrl(url); // getting XML Document doc = parser.getDomElement(xml); // getting DOM element NodeList nl = doc.getElementsByTagName(TAG_MAIN); // TODO Auto-generated method stub for (int i = 0; i < nl.getLength(); i++) { // creating new HashMap HashMap<String, String> map = new HashMap<String, String>(); Element e = (Element) nl.item(i); // adding each child node to HashMap key => value map.put(TAG_ID, parser.getValue(e, TAG_ID)); map.put(TAG_NAME, parser.getValue(e, TAG_NAME)); map.put(TAG_DETAIL, parser.getValue(e, TAG_DETAIL)); map.put(TAG_MAP, parser.getValue(e, TAG_MAP)); map.put(TAG_MAP_IMAGE, parser.getValue(e, TAG_MAP_IMAGE)); map.put(TAG_ITEM_IMAGE, parser.getValue(e, TAG_ITEM_IMAGE)); System.out.println("Test : " + parser.getValue(e, TAG_ID)); // adding HashList to ArrayList whatToDoInfo.add(map); publishProgress(""); } return null; } @Override protected void onPostExecute(String result) { // TODO Auto-generated method stub super.onPostExecute(result); ProgressBar pb = (ProgressBar) findViewById(R.id.doProgress); pb.setVisibility(pb.INVISIBLE); } } When i run the code it throws the following exception. *java.lang.IllegalStateException: The content of the adapter has changed but ListView did not receive a notification. Make sure the content of your adapter is not modified from a background thread, but only from the UI thread.* But the same code works fine when the progressbar feature is omitted. I can't find where i'm going wrong. can someone please help me ? Thank you in advance.

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  • UIView, UIScrollView and UITextFields problem calling Method

    - by Jeff Groby
    I have a view with several embedded UITextFields, this UIView is subordinated to a UIScrollView in IB. Each text field is supposed to invoke a method called updateText defined in the viewcontroller implementation file when the user is done editing the field. For some reason, the method updateText never gets invoked. Anyone have any ideas how to go about fixing this? The method fired off just fine when the UIScrollView was not present in the project but the keyboard would cover the text fields during input, which was annoying. Now my textfields move up above the keyboard when it appears, but won't fire off the method when done editing. Here is my implementation file: #import "MileMarkerViewController.h" @implementation MileMarkerViewController @synthesize scrollView,milemarkerLogDate,milemarkerDesc,milemarkerOdobeg,milemarkerOdoend,milemarkerBusiness,milemarkerPersonal,milemarker; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) { // Initialization code } return self; } - (BOOL) textFieldShouldReturn: (UITextField*) theTextField { return [theTextField resignFirstResponder]; } - (void)viewDidLoad { [super viewDidLoad]; [[NSNotificationCenter defaultCenter] addObserver: self selector: @selector(keyboardWasShown:) name: UIKeyboardDidShowNotification object: nil]; [[NSNotificationCenter defaultCenter] addObserver: self selector: @selector(keyboardWasHidden:) name: UIKeyboardDidHideNotification object: nil]; keyboardShown = NO; // 1 [scrollView setContentSize: CGSizeMake( 320, 480)]; // 2 } - (void)keyboardWasShown:(NSNotification*)aNotification { if (keyboardShown) return; NSDictionary* info = [aNotification userInfo]; // Get the size of the keyboard. NSValue* aValue = [info objectForKey:UIKeyboardBoundsUserInfoKey]; CGSize keyboardSize = [aValue CGRectValue].size; // Resize the scroll view (which is the root view of the window) CGRect viewFrame = [scrollView frame]; viewFrame.size.height -= keyboardSize.height; scrollView.frame = viewFrame; // Scroll the active text field into view. CGRect textFieldRect = [activeField frame]; [scrollView scrollRectToVisible:textFieldRect animated:YES]; keyboardShown = YES; } - (void)keyboardWasHidden:(NSNotification*)aNotification { NSDictionary* info = [aNotification userInfo]; // Get the size of the keyboard. NSValue* aValue = [info objectForKey:UIKeyboardBoundsUserInfoKey]; CGSize keyboardSize = [aValue CGRectValue].size; // Reset the height of the scroll view to its original value CGRect viewFrame = [scrollView frame]; viewFrame.size.height += keyboardSize.height; [scrollView scrollRectToVisible:CGRectMake(0, 0, 1, 1) animated:YES]; scrollView.frame = viewFrame; keyboardShown = NO; } - (void)textFieldDidBeginEditing:(UITextField *)textField { activeField = textField; } - (void)textFieldDidEndEditing:(UITextField *)textField { activeField = nil; } - (IBAction)updateText:(id) sender { NSLog(@"You just entered: %@",self.milemarkerLogDate.text); self.milemarker.logdate = self.milemarkerLogDate.text; self.milemarker.desc = self.milemarkerDesc.text; self.milemarker.odobeg = self.milemarkerOdobeg.text; self.milemarker.odoend = self.milemarkerOdoend.text; self.milemarker.business = self.milemarkerBusiness.text; self.milemarker.personal = self.milemarkerPersonal.text; NSLog(@"Original textfield is set to: %@",self.milemarker.logdate); [self.milemarker updateText]; } - (void)didReceiveMemoryWarning { // Releases the view if it doesn't have a superview. [super didReceiveMemoryWarning]; // Release any cached data, images, etc that aren't in use. } - (void)dealloc { [super dealloc]; } @end

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  • Fragment method and socket.io

    - by Tolgay Toklar
    I have a method,this method updates an array list in fragment.I can call this method in main activity like this public void getFromUser(String message) { addMessageToFragment("ok"); } public void addMessageToFragment(String message) { Log.w("Step 1",message); frgObj.addMessageToList("asd"); } getFromUser is calling from fragment(when user presses the button) this is working as well.But I am using socket.io in my app,when I try to call this method from socket.io,app is not working. public void on(String event, IOAcknowledge ack, Object... args) { try{ addMessageToFragment("ok"); } catch (JSONException e) {} } When this callback function calls,app is giving this errors: 08-19 11:57:24.813: W/System.err(4962): io.socket.SocketIOException: Exception was thrown in on(String, JSONObject[]). 08-19 11:57:24.813: W/System.err(4962): Message was: 5:::{"name":"listele","args":[{"mesaj":"123","gonderen":"781722165-tolgay007-DKSMIcIYGahPuKXriM83","alici":"tolgay007","blck_id":"781722165-tolgay007","out_username":"Anony-781722","ars_status":1,"longinf":"3aqghef","a_status":1}]} 08-19 11:57:24.813: W/System.err(4962): at io.socket.IOConnection.transportMessage(IOConnection.java:702) 08-19 11:57:24.813: W/System.err(4962): at io.socket.WebsocketTransport.onMessage(WebsocketTransport.java:82) 08-19 11:57:24.813: W/System.err(4962): at org.java_websocket.client.WebSocketClient.onWebsocketMessage(WebSocketClient.java:361) 08-19 11:57:24.813: W/System.err(4962): at org.java_websocket.WebSocketImpl.deliverMessage(WebSocketImpl.java:565) 08-19 11:57:24.813: W/System.err(4962): at org.java_websocket.WebSocketImpl.decodeFrames(WebSocketImpl.java:331) 08-19 11:57:24.813: W/System.err(4962): at org.java_websocket.WebSocketImpl.decode(WebSocketImpl.java:152) 08-19 11:57:24.813: W/System.err(4962): at org.java_websocket.client.WebSocketClient.interruptableRun(WebSocketClient.java:247) 08-19 11:57:24.823: W/System.err(4962): at org.java_websocket.client.WebSocketClient.run(WebSocketClient.java:193) 08-19 11:57:24.823: W/System.err(4962): at java.lang.Thread.run(Thread.java:841) 08-19 11:57:24.823: W/System.err(4962): Caused by: android.view.ViewRootImpl$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views. 08-19 11:57:24.823: W/System.err(4962): at android.view.ViewRootImpl.checkThread(ViewRootImpl.java:6094) 08-19 11:57:24.823: W/System.err(4962): at android.view.ViewRootImpl.focusableViewAvailable(ViewRootImpl.java:2800) 08-19 11:57:24.823: W/System.err(4962): at android.view.ViewGroup.focusableViewAvailable(ViewGroup.java:650) 08-19 11:57:24.823: W/System.err(4962): at android.view.ViewGroup.focusableViewAvailable(ViewGroup.java:650) 08-19 11:57:24.823: W/System.err(4962): at android.view.ViewGroup.focusableViewAvailable(ViewGroup.java:650) 08-19 11:57:24.823: W/System.err(4962): at android.view.ViewGroup.focusableViewAvailable(ViewGroup.java:650) 08-19 11:57:24.823: W/System.err(4962): at android.view.ViewGroup.focusableViewAvailable(ViewGroup.java:650) 08-19 11:57:24.823: W/System.err(4962): at android.view.ViewGroup.focusableViewAvailable(ViewGroup.java:650) 08-19 11:57:24.823: W/System.err(4962): at android.view.ViewGroup.focusableViewAvailable(ViewGroup.java:650) 08-19 11:57:24.823: W/System.err(4962): at android.view.View.setFlags(View.java:8878) 08-19 11:57:24.823: W/System.err(4962): at android.view.View.setFocusableInTouchMode(View.java:6114) 08-19 11:57:24.823: W/System.err(4962): at android.widget.AdapterView.checkFocus(AdapterView.java:718) 08-19 11:57:24.823: W/System.err(4962): at android.widget.AdapterView$AdapterDataSetObserver.onChanged(AdapterView.java:813) 08-19 11:57:24.823: W/System.err(4962): at android.widget.AbsListView$AdapterDataSetObserver.onChanged(AbsListView.java:6280) 08-19 11:57:24.823: W/System.err(4962): at android.database.DataSetObservable.notifyChanged(DataSetObservable.java:37) 08-19 11:57:24.823: W/System.err(4962): at android.widget.BaseAdapter.notifyDataSetChanged(BaseAdapter.java:50) 08-19 11:57:24.823: W/System.err(4962): at android.widget.ArrayAdapter.notifyDataSetChanged(ArrayAdapter.java:286) 08-19 11:57:24.823: W/System.err(4962): at com.impact.ribony.ConversationFragment.addMessageToList(ConversationFragment.java:91) 08-19 11:57:24.823: W/System.err(4962): at com.impact.ribony.MainActivity.addMessageToFragment(MainActivity.java:344) 08-19 11:57:24.823: W/System.err(4962): at com.impact.ribony.MainActivity$2.on(MainActivity.java:183) 08-19 11:57:24.823: W/System.err(4962): at io.socket.IOConnection.on(IOConnection.java:908) 08-19 11:57:24.883: W/System.err(4962): at io.socket.IOConnection.transportMessage(IOConnection.java:697) I didn't understand this error.What can be cause this error ?

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  • Get JVM to grow memory demand as needed up to size of VM limit?

    - by Ira Baxter
    We ship a Java application whose memory demand can vary quite a lot depending on the size of the data it is processing. If you don't set the max VM (virtual memory) size, quite often the JVM quits with an GC failure on big data. What we'd like to see, is the JVM requesting more memory, as GC fails to provide enough, until the total available VM is exhausted. e.g., start with 128Mb, and increase geometrically (or some other step) whenever the GC failed. The JVM ("Java") command line allows explicit setting of max VM sizes (various -Xm* commands), and you'd think that would be designed to be adequate. We try to do this in a .cmd file that we ship with the application. But if you pick any specific number, you get one of two bad behaviors: 1) if your number is small enough to work on most target systems (e.g., 1Gb), it isn't big enough for big data, or 2) if you make it very large, the JVM refuses to run on those systems whose actual VM is smaller than specified. How does one set up Java to use the available VM when needed, without knowing that number in advance, and without grabbing it all on startup?

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  • VEMap and a GeoRSS feed(hosted separately)

    - by Alexis Abril
    The scenario is as follows: A WCF web service exists that outputs a valid GeoRSS feed. This lives in its own domain as a number of different applications have access to it. A web page(on a different site) has been created with an instance of a VEMap(Bing/Virtual Earth map object). Now, VEMap can accept an input feed in this format via the following: var layer = new VEShapeLayer(); var veLayerSpec = new VEShapeSourceSpecification(VEDataType.GeoRSS, "someurl", layer); map.ImportShapeLayerData(veLayerSpec, onComplete, true); onComplete is a callback function I'm using to replace the default pin graphic with something custom. The question is in regards to "someurl", which is a path to a local xml file containing the geographic information(georss simple format). I've realized this feed and the map must be hosted in the same domain, so I've created a generic handler that reads the remote feed and returns it in the same format. var veLayerSpec = new VEShapeSourceSpecification(VEDataType.GeoRSS, "/somelocalhandler.ashx", layer); When I do this, I get the VEMap error("z is null"). This is the same error one would receive when trying to access a remote feed. When I copy the feed into a local xml file(ie, "feed.xml") there is no error. The order of operations is currently: remote feed - local handler - VEMap import If I'm over complicating this procedure, let me know! I'm a bit new to the Bing Maps API and might have missed something. Any assistance is appreciated.

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  • Pointer Implementation Details in C

    - by Will Bickford
    I would like to know architectures which violate the assumptions I've listed below. Also I would like to know if any of the assumptions are false for all architectures (i.e. if any of them are just completely wrong). sizeof(int *) == sizeof(char *) == sizeof(void *) == sizeof(func_ptr *) The in-memory representation of all pointers for a given architecture is the same regardless of the data type pointed to. The in-memory representation of a pointer is the same as an integer of the same bit length as the architecture. Multiplication and division of pointer data types are only forbidden by the compiler. NOTE: Yes I know this is nonsensical. What I mean is - is there hardware support to forbid this incorrect usage? All pointer values can be casted to a single integer. In other words, what architectures still make use of segments and offsets? Incrementing a pointer is equivalent to adding sizeof(the pointed data type) to the memory address stored by the pointer. If p is an int32* then p+1 is equal to the memory address 4 bytes after p. I'm most used to pointers being used in a contiguous, virtual memory space. For that usage, I can generally get by thinking of them as addresses on a number line. See (http://stackoverflow.com/questions/1350471/pointer-comparison/1350488#1350488).

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  • Writing a VM - well formed bytecode?

    - by David Titarenco
    Hi, I'm writing a virtual machine in C just for fun. Lame, I know, but luckily I'm on SO so hopefully no one will make fun :) I wrote a really quick'n'dirty VM that reads lines of (my own) ASM and does stuff. Right now, I only have 3 instructions: add, jmp, end. All is well and it's actually pretty cool being able to feed lines (doing it something like write_line(&prog[1], "jmp", regA, regB, 0); and then running the program: while (machine.code_pointer <= BOUNDS && DONE != true) { run_line(&prog[machine.cp]); } I'm using an opcode lookup table (which may not be efficient but it's elegant) in C and everything seems to be working OK. My question is more of a "best practices" question but I do think there's a correct answer to it. I'm making the VM able to read binary files (storing bytes in unsigned char[]) and execute bytecode. My question is: is it the VM's job to make sure the bytecode is well formed or is it just the compiler's job to make sure the binary file it spits out is well formed? I only ask this because what would happen if someone would edit a binary file and screw stuff up (delete arbitrary parts of it, etc). Clearly, the program would be buggy and probably not functional. Is this even the VM's problem? I'm sure that people much smarter than me have figured out solutions to these problems, I'm just curious what they are!

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