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• Paste a multi-line Java String in Eclipse

  - by Thilo

  Unfortunately, Java has no syntax for multi-line string literals. No problem if the IDE makes it easy to work with constructs like String x = "CREATE TABLE TEST ( \n" + "A INTEGER NOT NULL PRIMARY KEY, \n" ... What is the fastest way to paste a multi-line String from the clipboard into Java source using Eclipse (in a way that it automagically creates code like the above).

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• postgresql drop table

  - by Russell

  I have two tables (tbl and tbl_new) that both use the same sequence (tbl_id_seq). I'd like to drop one of those tables. On tbl, I've removed the modifier "not null default nextval('tbl_id_seq'::regclass)" but that modifier remains on tbl_new. I'm getting the following error: ERROR: cannot drop table tbl because other objects depend on it DETAIL: default for table tbl_new column id depends on sequence tbl_id_seq After reviewing http://www.postgresql.org/docs/9.1/static/sql-droptable.html It looks like there is only CASCADE and RESTRICT as options.

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• will mmap use user cpu instead of whole sys cpu? (solaris)

  - by Daniel

  when use mmap to allocate some anonymous mem, we often set the start address as 0/null so mmap will figure out the starting address by itself. And to get the start address, it will work thought the whole virtual memory space to find a hole which could put the chuck of mem to be allocated. I guess this is calculated as user cpu instead of sys cpu. If the virtual memory is fragmented, then the time to find the starting address will use more user cpu, is my understanding correct

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• Where should I initialize variables for an OO Recursive Descent Parse Tree?

  - by Vasto

  I'd like to preface this by stating that this is for a class, so please don't solve this for me. One of my labs for my cse class is creating an interpreter for a BNF that was provided. I understand most of the concepts, but I'm trying to build up my tree and I'm unsure where to initialize values. I've tried in both the constructor, and in the methods but Eclipse's debugger still only shows the left branch, even though it runs through completely. Here is my main procedure so you can get an idea of how I'm calling the methods. public class Parser { public static void main(String[] args) throws IOException { FileTokenizer instance = FileTokenizer.Instance(); FileTokenizer.main(args); Prog prog = new Prog(); prog.ParseProg(); prog.PrintProg(); prog.ExecProg(); } Now here is My Prog class: public class Prog { private DeclSeq ds; private StmtSeq ss; Prog() { ds = new DeclSeq(); ss = new StmtSeq(); } public void ParseProg() { FileTokenizer instance = FileTokenizer.Instance(); instance.skipToken(); //Skips program (1) // ds = new DeclSeq(); ds.ParseDS(); instance.skipToken(); //Skips begin (2) // ss = new StmtSeq(); ss.ParseSS(); instance.skipToken(); } I've tried having Prog() { ds = null; ss = null; } public void ParseProg() { FileTokenizer instance = FileTokenizer.Instance(); instance.skipToken(); //Skips program (1) ds = new DeclSeq(); ds.ParseDS(); ... But it gave me the same error. I need the parse tree built up so I can do a pretty print and an execute command, but like I said, I only get the left branch. Any help would be appreciated. Explanations why are even more so appreciated. Thank you, Vasto

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• ModelBindingContext ModelName

  - by user195910

  Can anyone explain where the ModelName gets populated from? Looked in MSDN documentation and no explaination here. I am creating a custom model binder and within it I get null for the following: var result = bindingContext.ModelName);

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• Left Outer Join on Many-to-One Mapping

  - by Colin Bowern

  I have a reference to call that may or may not be there. When I add the nullable option it still doing Inner Join when I want an Outer Left Join (show the left even if the right is null). Is this possible in the NH map? References(x => x.DefaultCategory, "CATEGORY_ID") .Nullable();

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• C#: should "" be assigned to string to make it empty?

  - by Craig Johnston

  Should "" be assigned to a string to make it empty? Or should it be a left as null?

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• What is the meaning of ": base" in the costructor definition ?

  - by DotNetBeginner

  What is the meaning of ": base" in the costructor of following class(MyClass) ? Please explain the concept behind constructor definition given below for class MyClass. public class MyClass: WorkerThread { public MyClass(object data): base(data) { // some code } } public abstract class WorkerThread { private object ThreadData; private Thread thisThread; public WorkerThread(object data) { this.ThreadData = data; } public WorkerThread() { ThreadData = null; } }

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• Multiple conditions on select query

  - by stats101

  I have a select statement and I wish to calculate the cubic volume based on other values within the table. However I want to check that neither pr.Length_mm or pr.Width_mm or pr.Height_mm are NULL prior. I've looked at CASE statements, however it only seems to evaluate one column at a time. SELECT sa.OrderName, sa.OrderType, pr.Volume_UOM ,pr.Length_mm*pr.Width_mm*pr.Height_mm AS Volume_Cubic ,pr.Length_mm*pr.Width_mm AS Volume_Floor ,pr.Length_mm ,pr.Height_mm ,pr.Width_mm FROM CostToServe_MCB.staging.Sale sa LEFT JOIN staging.Product pr ON sa.ID = pr.ID

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• Simulating click with javascript on document

  - by Charlie

  Is it possible to simulate a click on a webpage using javascript but without defining a specific element, but rather just specifying the document? I would have liked to do something like this, and if the location happens to have a link, then this will be pressed: function simulateClick(x, y) { var evt = window.createEvent("MouseEvents"); evt.initMouseEvent("click", true, true, window, x, y, x, y, 1, false, false, false, false, 0, null); window.dispatchEvent(evt); }

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• NSUserDefaults - reload needed?

  - by wallou

  hey guys, I use NSUserDefaults to store some stuff. It works fine but only after i restart the app. I use: [prefs synchronize]; I thought it would immediately save the data but instead preferences stay null. If you have any idea or already deal with it let me know. Thanks for any help. Wallou

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• Invoking web service methods from code-behind

  - by Peter Wone

  The application on which I am working has a web service exposing various methods. Most of these methods use WebOperationContext.Current to set headers up to prevent cacheing. This works fine when the service methods are consumed in AJAX via the generated proxy, but when I attempt to do the same thing from code-behind, WebOperationContext.Current is null. Can anyone tell me how to confer appropriate call context on the method invocation?

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• Windows Phone period task, function not executing

  - by Special K.

  I'm trying to execute a code (to parse an XML to be more precisely, and after that I'll toast message the user with some new info's), but the class function AccDetailsDownloaded is not executed (is simply skipped), also the memory usage is ~2mb out of 6, here is my code: if (task is PeriodicTask) { getData(); } else { getData(); } // If debugging is enabled, launch the agent again in one minute. #if DEBUG_AGENT ScheduledActionService.LaunchForTest(task.Name, TimeSpan.FromSeconds(60)); #endif // Call NotifyComplete to let the system know the agent is done working. NotifyComplete(); } public void getData() { var settings = IsolatedStorageSettings.ApplicationSettings; string url = "http://example.com/example.xml"; if (!System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable()) { MessageBox.Show("No network connection available!"); return; } // start loading XML-data WebClient downloader = new WebClient(); Uri uri = new Uri(url, UriKind.Absolute); downloader.DownloadStringCompleted += new DownloadStringCompletedEventHandler(AccDetailsDownloaded); downloader.DownloadStringAsync(uri); string toastTitle = ""; toastTitle = "Periodic "; string toastMessage = "Mem usage: " + DeviceStatus.ApplicationPeakMemoryUsage + "/" + DeviceStatus.ApplicationMemoryUsageLimit; // Launch a toast to show that the agent is running. // The toast will not be shown if the foreground application is running. ShellToast toast = new ShellToast(); toast.Title = toastTitle; toast.Content = toastMessage; toast.Show(); } void AccDetailsDownloaded(object sender, DownloadStringCompletedEventArgs e) { if (e.Result == null || e.Error != null) { MessageBox.Show("There was an error downloading the XML-file!"); } else { string toastTitle = ""; toastTitle = "Periodic "; string toastMessage = "Mem usage: " + DeviceStatus.ApplicationPeakMemoryUsage + "/" + DeviceStatus.ApplicationMemoryUsageLimit; // Launch a toast to show that the agent is running. // The toast will not be shown if the foreground application is running. ShellToast toast = new ShellToast(); toast.Title = toastTitle; toast.Content = toastMessage; toast.Show(); } } Thank you.

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• Are there any tutorials on Web Service creation with PHP 5?

  - by Ole Jak

  I mean I want to understrand how to generate WSDL from my code So I've rote <?php $soap = new SoapServer(null, array('uri' => 'http://php.hoshmand.org/')); $soap->addFunction('add'); $soap->handle(); function add($a, $b) { return $a + $b; } ?> How to call it like a WSDL now?

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• TouchCode XML parsing error

  - by itsaboutcode

  Hi, I have a xml document which has only one element in the document, which is <error>error string<error> But when i try to parse it, it says this document has no element at all. In other words when i try to access the rootElement it says "null" CXMLDocument *rssParser = [[[CXMLDocument alloc] initWithContentsOfURL:url options:0 error:nil] autorelease]; NSLog(@"Root: %@",[[rssParser rootElement] name]); Please tell me what is wroing with this. Thanks

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• Instantiate defined object with Linq Query

  - by Heinz

  I know that you can instantiate anonymous types with Linq but I am looking to instantiate an object I have already defined. Every time I do, all the properties are returned with their defaults (null, 0, etc.) Is there a way to make this work? I've tried something like this: ServiceDepartment[] serviceDepartments = (from d in departments orderby d.department_name select new ServiceDepartment { DepartmentID = d.department_id, DepartmentName = d.department_name }).ToArray();

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• Parsing RFC1123 formatted dates in C#, .Net 4.0

  - by Ruby

  Hello, I am trying to parse dates in RFC1123 format (Thu, 21 Jan 2010 17:47:00 EST). Here is what I tried but none worked: DateTime Date = DateTime.Parse(dt); DateTime Date = DateTime.ParseExact(dt, "r", null); Could you please help me out with this? Thanks, Ruby :)

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• How can I cast authoritatively in asp classic?

  - by Tchalvak

  In asp classic, the cint() function or procedure or whatever it is won't allow me to cast arbitrary strings, like "bob" or "null" or anything like that. Is there anything that will allow me to simply cast integers, numeric strings, and arbitrary strings to actual integers, with some sane default like 0 for strings?

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• JavaScript Regular Expression Email Validation

  - by azamsharp

  For the love of God I am not getting this easy code to work! It is always alerting out "null" which means that the string does not match the expression. var pattern = "^\w+@[a-zA-Z_]+?\.[a-zA-Z]{2,3}$"; function isEmailAddress(str) { str = "[email protected]"; alert(str.match(pattern)); return str.match(pattern); }

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• parse part of the text from regex pattern

  - by dalco

  I have a string: [\n['-','some text what\rcontains\nnewlines'],\n\n trying to parse: Regex.Split(@"[\n['-','some text what contains newlines'],\n\n", @"\[\n\['(.*)','(.*)'],.*"); but the split return array seems to be null i need to get part of text: "some text what contains newlines"

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• How does the compiler choose which method to call when a parameter type is ambiguous?

  - by Darksider

  I have the following code: [TestMethod] public void TestFoo() { Foo(null); } private void Foo (object bar) { Console.WriteLine("Foo - object"); } private void Foo (string bar) { Console.WriteLine("Foo - string"); } and when I run the test "TestFoo()", the console output is "Foo - string". How does the compiler decide which method to call?

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• how to parse string into a date pattern using dojo

  - by Dojouser

  Hi, I have a value as '05/17/2010' I would like to get it as May 17, 2010 by using dojo.date.locale.I have tried using the dojo.date.locale.parse as follows : x = '05/17/2010' var x= dojo.date.locale.parse(x, {datePattern: "MM/dd/yyyy", selector: "date"}); alert(x) This doesnt give me the desired date pattern I also tried replacing the pattern as datePattern : "MMMM d, yyyy" but it returns me null. Any help highly appreciated. Thanks

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• Why do sockets not die when server dies? Why does a socket die when server is alive?

  - by Roman

  I try to play with sockets a bit. For that I wrote very simple "client" and "server" applications. Client: import java.net.*; public class client { public static void main(String[] args) throws Exception { InetAddress localhost = InetAddress.getLocalHost(); System.out.println("before"); Socket clientSideSocket = null; try { clientSideSocket = new Socket(localhost,12345,localhost,54321); } catch (ConnectException e) { System.out.println("Connection Refused"); } System.out.println("after"); if (clientSideSocket != null) { clientSideSocket.close(); } } } Server: import java.net.*; public class server { public static void main(String[] args) throws Exception { ServerSocket listener = new ServerSocket(12345); while (true) { Socket serverSideSocket = listener.accept(); System.out.println("A client-request is accepted."); } } } And I found a behavior that I cannot explain: I start a server, than I start a client. Connection is successfully established (client stops running and server is running). Then I close the server and start it again in a second. After that I start a client and it writes "Connection Refused". It seems to me that the server "remember" the old connection and does not want to open the second connection twice. But I do not understand how it is possible. Because I killed the previous server and started a new one! I do not start the server immediately after the previous one was killed (I wait like 20 seconds). In this case the server "forget" the socket from the previous server and accepts the request from the client. I start the server and then I start the client. Connection is established (server writes: "A client-request is accepted"). Then I wait a minute and start the client again. And server (which was running the whole time) accept the request again! Why? The server should not accept the request from the same client-IP and client-port but it does!

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• users in a domain with NO login scripts.

  - by robd

  I'm trying to write an LDAP query for find all users in a domain with NO login scripts. The following works for users with a login script = db.bat: (&(objectCategory=user)(ScriptPath=DA.BAT)) However, what i thought will be the obvious logic for a Null ScriptPath field returns no values: (&(objectCategory=user)(ScriptPath="")) I'll appreciate any assistance. Robd

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• How can I prevent row selection in the WPF Toolkit DataGrid?

  - by Kilhoffer

  I see a few options available for row selection, but 'No Selection' is not one of them. I've tried handling the SelectionChanged event by setting SelectedItem to null, but the row still seems selected. If there is no easy support for preventing this, would it be easy to just style the selected row the same as an unselected one? That way it could be selected, but the user has no visual indicator.

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