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  • MembershipProvider, IPrincipal, IIdentity?

    - by MRFerocius
    Hello guys; I have a conceptual question... I am making an Intranet application (Web platform) for a company. I have a SQL Server DB with these tables: Users (userID, userName, userPass, roleID) Roles (roleID, roleName) Pages (pageID, pageURL) RolesXPages(pageID, roleID) How is the best way to create a structure to store all this information while the user navigates the site, I mean, on the thread I should be able to check his role, his pages (the ones he can access) I have been reading and there is a lot of stuff there where Im confused, I saw the MembershipProvider, IPrincipal, IIdentity, etc classes but Im not sure what should be the best one for me. Any thoughts... Thanks in advance! Edit: Everytime gets more confusing... I just want to handle those structures at runtime and be able to mantain state during page callbacks or changing pages...

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  • asynchronous javascript loading/executing

    - by Kai
    In this post, asynchronous .js file loading syntax, someone said, "If the async attribute is present, then the script will be executed asynchronously, as soon as it is available." (function() { var d=document, h=d.getElementsByTagName('head')[0], s=d.createElement('script'); s.type='text/javascript'; s.async=true; s.src='/js/myfile.js'; h.appendChild(s); }()); /* note ending parenthesis and curly brace */ My question is, what does "the script will be executed asynchronously" mean? Will this script be executed in a different thread from other javascripts in the page? If yes, should we worry about synchronization issue in the two threads? Thanks.

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  • OutOfMemoryError what to increase and how?

    - by Pentium10
    I have a really long collection with 10k items, and when running a toString() on the object it crashes. I need to use this output somehow. 05-21 12:59:44.586: ERROR/dalvikvm-heap(6415): Out of memory on a 847610-byte allocation. 05-21 12:59:44.636: ERROR/dalvikvm(6415): Out of memory: Heap Size=15559KB, Allocated=12932KB, Bitmap Size=613KB 05-21 12:59:44.636: ERROR/AndroidRuntime(6415): Uncaught handler: thread main exiting due to uncaught exception 05-21 12:59:44.636: ERROR/AndroidRuntime(6415): java.lang.OutOfMemoryError 05-21 12:59:44.636: ERROR/AndroidRuntime(6415): at java.lang.AbstractStringBuilder.enlargeBuffer(AbstractStringBuilder.java:97) 05-21 12:59:44.636: ERROR/AndroidRuntime(6415): at java.lang.AbstractStringBuilder.append0(AbstractStringBuilder.java:155) 05-21 12:59:44.636: ERROR/AndroidRuntime(6415): at java.lang.StringBuilder.append(StringBuilder.java:202) 05-21 12:59:44.636: ERROR/AndroidRuntime(6415): at java.util.AbstractCollection.toString(AbstractCollection.java:384) I need step by step guide how to increase the heap for and Android application. I don't run the command line.

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  • Using sed for introducing newline after each > in a +1 gigabyte large one-line text file

    - by wasatz
    I have a giant text file (about 1,5 gigabyte) with xml data in it. All text in the file is on a single line, and attempting to open it in any text editor (even the ones mentioned in this thread: http://stackoverflow.com/questions/159521/text-editor-to-open-big-giant-huge-large-text-files ) either fails horribly or is totally unusable due to the text editor hanging when attempting to scroll. I was hoping to introduce newlines into the file by using the following sed command sed 's/>/>\n/g' data.xml > data_with_newlines.xml Sadly, this caused sed to give me a segmentation fault. From what I understand, sed reads the file line-by-line which would in this case mean that it attempts to read the entire 1,5 gig file in one line which would most certainly explain the segfault. However, the problem remains. How do I introduce newlines after each in the xml file? Do I have to resort to writing a small program to do this for me by reading the file character-by-character?

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  • Scheduling Swingworker threads

    - by Simonw
    Hi, I have a 2 processes to perform in my swing application, one to fill a list, and one to do operations on each element on the list. I've just moved the 2 processes into Swingworker threads to stop the GUI locking up while the tasks are performed, and because I will need to do this set of operations to several lists, so concurrency wouldn't be a bad idea in the first place. However, when I just ran fillList.execute();doStuffToList.execute(); the doStuffToList thread to ran on the empty list (duh...). How do I tell the second process to wait until the first one is done? I suppose I could just nest the second process at the end of the first one, but i dunno, it seems like bad practice.

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  • Conditional restart on Activity onConfigurationChanged

    - by yuku
    I want to make an activity that allows orientation changes on some condition, but not otherwise. More exactly I want to prevent restarting the activity when a background thread is busy. I have put the configChanges attribute on the activity manifest, and onConfigurationChanged is called when the orientation changes. However I want to allow the app to change the orientation when allowed. @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); if (orientationChangeAllowed) { // how to I restart this activity? } else { // don't do anything } }

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  • Best practices for organizing .NET P/Invoke code to Win32 APIs

    - by Paul Sasik
    I am refactoring a large and complicated code base in .NET that makes heavy use of P/Invoke to Win32 APIs. The structure of the project is not the greatest and I am finding DllImport statements all over the place, very often duplicated for the same function, and also declared in a variety of ways: The import directives and methods are sometimes declared as public, sometimes private, sometimes as static and sometimes as instance methods. My worry is that refactoring may have unintended consequences but this might be unavoidable. Are there documented best practices I can follow that can help me out? My instict is to organize a static/shared Win32 P/Invoke API class that lists all of these methods and associated constants in one file... (The code base is made up of over 20 projects with a lot of windows message passing and cross-thread calls. It's also a VB.NET project upgraded from VB6 if that makes a difference.)

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  • MkMapView setRegion animation prevents touch events on Annotation Views

    - by Vlad Gurovich
    Hi there! We have a MKmapView with a bunch of Image Annotation where each Image annotation responds to touch by overriding these methods of AnnotationView subclass: -(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event; -(void) touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event Our map region is updated using [MkMapView setRegion:animated:] whenever the new location is received and is far enough from the old location to make a difference. What I noticed is that if we set animated flag to YES the touches on our annotation are rarely detected(probably due to the fact that main thread is busy animating between two map regions. When we set animated flag to NO, everything is fine, but map transition may(or may not) become jerky. The question I have is whether this is an expected behavior of animated flag of [MkMapView setRegion:animated] function or whether there is a workaround for this issue. Thanks in advance

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  • C# Improvement on a Fire-and-Forget

    - by adam
    Greetings I have a program that creates multiples instances of a class, runs the same long-running Update method on all instances and waits for completion. I'm following Kev's approach from this question of adding the Update to ThreadPool.QueueUserWorkItem. In the main prog., I'm sleeping for a few minutes and checking a Boolean in the last child to see if done while(!child[child.Length-1].isFinished){ Thread.Sleep(...); } This solution is working the way I want, but is there a better way to do this? Both for the independent instances and checking if all work is done. Thanks

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  • noClassDefFoundError using Scala Plugin for Eclipse

    - by Jacob Lyles
    I successfully implemented and ran several Scala tutorials in Eclipse using the Scala plugin. Then suddenly I tried to compile and run an example, and this error came up: Exception in thread "main" java.lang.NoClassDefFoundError: hello/HelloWorld Caused by: java.lang.ClassNotFoundException: hello.HelloWorld at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:315) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:330) at java.lang.ClassLoader.loadClass(ClassLoader.java:250) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:398) After this point I could no longer run any Scala programs in Eclipse. I tried cleaning and rebuilding my project, closing and reopening my project, and closing and reopening Eclipse. Eclipse version number 3.5.2 and Scala plugin 2.8.0 Here is the original code: package hello object HelloWorld { def main(args: Array[String]){ println("hello world") } }

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  • Regex to match the first file in a rar archive file set in Python

    - by mridang
    I need to uncompress all the files in a directory and for this I need to find the first file in the set. I'm currently doing this using a bunch of if statements and loops. Can i do this this using regex? Here's a list of files that i need to match: yes.rar yes.part1.rar yes.part01.rar yes.part001.rar yes.r01 yes.r001 These should NOT be matched: no.part2.rar no.part02.rar no.part002.rar no.part011.rar no.r002 no.r02 I found a similar regex on this thread but it seems that Python doesn't support varible length lookarounds. A single line regex would be complicated but I'll document it well and it's not a problem. It's just one of those problems you beat your heap up, over. Thanks in advance guys. :)

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  • Azure - Microsoft.IdentityModel not found

    - by Andy
    Hi There, I'm working with a WCF service in Azure, which uses Windows Live ID authentication with the recent deviceid requirements. When I host my WCF service locally in the compute emulator, it works properly, but when I deploy the cloud service to Azure and call it the same way (from another project that uses the WCF service as a service reference), I get the error: Could not load file or assembly 'Microsoft.IdentityModel, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified. I found this post : http://social.msdn.microsoft.com/Forums/en-US/netservices/thread/cd139b5c-ad12-4298-af2f-1b2d0136a977 But there are a few problems: 1. I don't seem to have access to Microsoft.IdentityModel, only System.IdentityModel. I'm not sure why it's searching for something in 3.5 at all, as I'm building in .NET 4.0. 2. When I choose to "copy to local" on System.IdentityModel, it doesn't change anything. Any help? I would appreciate it! Best Regards, Andy

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  • Passing events in JMS

    - by sam
    I'm new in JMS. In my program, My Problem is that , I want to pass 4 events(classes) (callEvent, agentEvent, featureEvent, eventListenerExit) from the JMSQueue Program , who i m mention below. How can I do this? // (JmsSender.java) package com.apac.control.helper; import java.util.Calendar; import javax.jms.Queue; import javax.jms.QueueConnection; import javax.jms.QueueConnectionFactory; import javax.jms.QueueSender; import javax.jms.QueueSession; import javax.jms.Session; import javax.jms.TextMessage; import javax.naming.InitialContext; import com.apac.control.api.CallData; import com.apac.control.exception.CtiException; import library.cti.CtiEventDocument; import library.cti.impl.CtiEventDocumentImpl; public final class JmsSender { private QueueConnectionFactory factory; private Queue queue; private QueueConnection connection; private QueueSession session; private QueueSender sender; private String sessionId; private String deviceId; private String centerId; private String switchId; public JmsSender(String queueJndiName, String sessionId, String deviceId, String centerId, String switchId) throws CtiException { this.sessionId = sessionId; this.deviceId = deviceId; this.centerId = centerId; this.switchId = switchId; try { InitialContext ic = new InitialContext(); factory = (QueueConnectionFactory) ic.lookup("javax/jms/QueueConnectionFactory"); queue = (Queue) ic.lookup(queueJndiName); } catch (Exception e) { throw new CtiException("CTI. Error creating JmsSender.", e); } } public String getCenterId() { return centerId; } public String getDeviceId() { return deviceId; } public String getSwitchId() { return switchId; } public void connect() throws CtiException { try { connection = factory.createQueueConnection(); } catch (Exception e) { throw new CtiException("CTI000. Error connecting to cti queue."); } } public void close() throws CtiException { try { connection.close(); } catch (Exception e) { throw new CtiException("CTI000. Error closing queue."); } } public void send(String eventType, CallData call, long seqId) throws CtiException { // prepare the message CtiEventDocument ced = this.createBaseCtiDocument(); CtiEventDocument ce = ced.getCtiEvent(); ce.setSequenceId(seqId); ce.setCallId("" + call.getCallId()); ce.setUcid(call.getUCID()); ce.setEventType(eventType); ce.setDnisNumber(call.getDnisNumber()); ce.setAniNumber(call.getAniNumber()); ce.setApplicationData(call.getApplicationData()); ce.setQueueNumber(call.getQueueNumber()); ce.setCallingNumber(call.getCallingNumber()); if (call instanceof ManualCall) { ce.setManual("yes"); } try { sendMessage(ced.toString()); } catch (Exception e) { throw new CtiException("CTI051. Error sending message.", e); } } public void send(String eventType, String agentId, String agentMode, long seqId) throws CtiException { CtiEventDocument ced = this.createBaseCtiDocument(); CtiEventDocument ce = ced.getCtiEvent(); ce.setSequenceId(seqId); ce.setEventType(eventType); ce.setAgentId(agentId); ce.setAgentMode(agentMode); try { sendMessage(ced.toString()); } catch (Exception e) { throw new CtiException("CTI051. Error sending message.", e); } } public void sendError(String errCode, String errMsg) throws CtiException { CtiEventDocument ced = this.createBaseCtiDocument(); CtiEventDocument ce = ced.getCtiEvent(); ce.setEventType("Error"); ce.setErrorCode(errCode); ce.setErrorMessage(errMsg); try { sendMessage(ced.toString()); } catch (Exception e) { throw new CtiException("CTI051. Error sending message.", e); } } private CtiEventDocument createBaseCtiDocument() { CtiEventDocument ced = CtiEventDocument.Factory.newInstance(); CtiEventDocument ce = ced.addNewCtiEvent(); ce.setSessionId(sessionId); ce.setSwitchId(switchId); ce.setCenterId(centerId); ce.setDeviceId(deviceId); ce.setTime(Calendar.getInstance()); return ced; } // Synchronization protects session, which cannot be // accessed by more than one thread. We may more than // one thread here from Cti in some cases (for example // when customer is being transfered out and hangs the call // at the same time. synchronized void sendMessage(String msg) throws Exception { session = connection.createQueueSession(true, Session.AUTO_ACKNOWLEDGE); sender = session.createSender(queue); TextMessage txtMsg = session.createTextMessage(msg); sender.send(txtMsg); sender.close(); session.commit(); } }

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  • errors deploying an EAR with EJBs 2.1 into JBoss AS5

    - by Marina
    Hi, I'm porting an application with EJBs 2.1 from Weblogic9 to JBoss AS5. I have made some of the changes like adding jboss.xml descriptors to EJBs and fixing application.xml of the EAR, but there are still problems when deploying the EAR. Here is a summary of the the latest error I'm getting when the first EJB is being deployed by JBoss (I will add the full stack trace at the end of the message): 14:15:48,124 ERROR [AbstractKernelController] Error installing to Parse: name=vf sfile:/C:/Marina/Tools/jboss-5.1.0.GA/server/default/deploy/contracts.ear/ state =Not Installed mode=Manual requiredState=Parse org.jboss.deployers.spi.DeploymentException: Error creating managed object for v fsfile:/C:/Marina/Tools/jboss-5.1.0.GA/server/default/deploy/contracts.ear/admin -ejb.jar/ .... Caused by: org.jboss.xb.binding.JBossXBException: Failed to parse source: Failed to parse schema for nsURI=, baseURI=null, schemaLocation=http://www.jboss.org/j2ee/dtd/jboss_2_4.dtd .... Caused by: org.jboss.xb.binding.JBossXBRuntimeException: -1:-1 94:3 The markup in the document preceding the root element must be well-formed. Is this a problem with parsing the jboss_2_4.dtd itself? or is it something worng with my descriptors for the EJB? When I try to validate the jboss_2_4.dtd in an XML editor it does complain about a syntax error at line 94:1 , which is the beginning of the first declaration, although it looks fine. Any ideas? Thanks! Marina Full error stack trace: 14:15:48,124 ERROR [AbstractKernelController] Error installing to Parse: name=vf sfile:/C:/Marina/Tools/jboss-5.1.0.GA/server/default/deploy/contracts.ear/ state =Not Installed mode=Manual requiredState=Parse org.jboss.deployers.spi.DeploymentException: Error creating managed object for v fsfile:/C:/Marina/Tools/jboss-5.1.0.GA/server/default/deploy/contracts.ear/admin -ejb.jar/ at org.jboss.deployers.spi.DeploymentException.rethrowAsDeploymentExcept ion(DeploymentException.java:49) at org.jboss.deployers.spi.deployer.helpers.AbstractParsingDeployerWithO utput.createMetaData(AbstractParsingDeployerWithOutput.java:362) at org.jboss.deployers.spi.deployer.helpers.AbstractParsingDeployerWithO utput.createMetaData(AbstractParsingDeployerWithOutput.java:322) at org.jboss.deployers.spi.deployer.helpers.AbstractParsingDeployerWithO utput.createMetaData(AbstractParsingDeployerWithOutput.java:294) at org.jboss.deployment.JBossEjbParsingDeployer.createMetaData(JBossEjbP arsingDeployer.java:95) at org.jboss.deployers.spi.deployer.helpers.AbstractParsingDeployerWithO utput.deploy(AbstractParsingDeployerWithOutput.java:234) at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(Deployer Wrapper.java:171) at org.jboss.deployers.plugins.deployers.DeployersImpl.doDeploy(Deployer sImpl.java:1439) at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFi rst(DeployersImpl.java:1157) at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFi rst(DeployersImpl.java:1210) at org.jboss.deployers.plugins.deployers.DeployersImpl.install(Deployers Impl.java:1098) at org.jboss.dependency.plugins.AbstractControllerContext.install(Abstra ctControllerContext.java:348) at org.jboss.dependency.plugins.AbstractController.install(AbstractContr oller.java:1631) at org.jboss.dependency.plugins.AbstractController.incrementState(Abstra ctController.java:934) at org.jboss.dependency.plugins.AbstractController.resolveContexts(Abstr actController.java:1082) at org.jboss.dependency.plugins.AbstractController.resolveContexts(Abstr actController.java:984) at org.jboss.dependency.plugins.AbstractController.change(AbstractContro ller.java:822) at org.jboss.dependency.plugins.AbstractController.change(AbstractContro ller.java:553) at org.jboss.deployers.plugins.deployers.DeployersImpl.process(Deployers Impl.java:781) at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeploye rImpl.java:702) at org.jboss.system.server.profileservice.repository.MainDeployerAdapter .process(MainDeployerAdapter.java:117) at org.jboss.system.server.profileservice.repository.ProfileDeployAction .install(ProfileDeployAction.java:70) at org.jboss.system.server.profileservice.repository.AbstractProfileActi on.install(AbstractProfileAction.java:53) at org.jboss.system.server.profileservice.repository.AbstractProfileServ ice.install(AbstractProfileService.java:361) at org.jboss.dependency.plugins.AbstractControllerContext.install(Abstra ctControllerContext.java:348) at org.jboss.dependency.plugins.AbstractController.install(AbstractContr oller.java:1631) at org.jboss.dependency.plugins.AbstractController.incrementState(Abstra ctController.java:934) at org.jboss.dependency.plugins.AbstractController.resolveContexts(Abstr actController.java:1082) at org.jboss.dependency.plugins.AbstractController.resolveContexts(Abstr actController.java:984) at org.jboss.dependency.plugins.AbstractController.change(AbstractContro ller.java:822) at org.jboss.dependency.plugins.AbstractController.change(AbstractContro ller.java:553) at org.jboss.system.server.profileservice.repository.AbstractProfileServ ice.activateProfile(AbstractProfileService.java:306) at org.jboss.system.server.profileservice.ProfileServiceBootstrap.start( ProfileServiceBootstrap.java:271) at org.jboss.bootstrap.AbstractServerImpl.start(AbstractServerImpl.java: 461) at org.jboss.Main.boot(Main.java:221) at org.jboss.Main$1.run(Main.java:556) at java.lang.Thread.run(Thread.java:619) Caused by: org.jboss.xb.binding.JBossXBException: Failed to parse source: Failed to parse schema for nsURI=, baseURI=null, schemaLocation=http://www.jboss.org/j 2ee/dtd/jboss_2_4.dtd at org.jboss.xb.binding.parser.sax.SaxJBossXBParser.parse(SaxJBossXBPars er.java:203) at org.jboss.xb.binding.UnmarshallerImpl.unmarshal(UnmarshallerImpl.java :168) at org.jboss.xb.util.JBossXBHelper.parse(JBossXBHelper.java:189) at org.jboss.xb.util.JBossXBHelper.parse(JBossXBHelper.java:166) at org.jboss.deployers.vfs.spi.deployer.SchemaResolverDeployer.parse(Sch emaResolverDeployer.java:137) at org.jboss.deployers.vfs.spi.deployer.SchemaResolverDeployer.parse(Sch emaResolverDeployer.java:121) at org.jboss.deployers.vfs.spi.deployer.AbstractVFSParsingDeployer.parse AndInit(AbstractVFSParsingDeployer.java:256) at org.jboss.deployers.vfs.spi.deployer.AbstractVFSParsingDeployer.parse (AbstractVFSParsingDeployer.java:188) at org.jboss.deployers.spi.deployer.helpers.AbstractParsingDeployerWithO utput.createMetaData(AbstractParsingDeployerWithOutput.java:348) ... 35 more Caused by: org.jboss.xb.binding.JBossXBRuntimeException: Failed to parse schema for nsURI=, baseURI=null, schemaLocation=http://www.jboss.org/j2ee/dtd/jboss_2_4 .dtd at org.jboss.xb.binding.resolver.AbstractMutableSchemaResolver.resolve(A bstractMutableSchemaResolver.java:293) at org.jboss.xb.binding.sunday.unmarshalling.SundayContentHandler.startE lement(SundayContentHandler.java:274) at org.jboss.xb.binding.parser.sax.SaxJBossXBParser$DelegatingContentHan dler.startElement(SaxJBossXBParser.java:401) at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Sour ce) at org.apache.xerces.xinclude.XIncludeHandler.startElement(Unknown Sourc e) at org.apache.xerces.impl.dtd.XMLDTDValidator.startElement(Unknown Sourc e) at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unkn own Source) at org.apache.xerces.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.s canRootElementHook(Unknown Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContent Dispatcher.dispatch(Unknown Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Un known Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XMLParser.parse(Unknown Source) at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source) at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Sour ce) at org.jboss.xb.binding.parser.sax.SaxJBossXBParser.parse(SaxJBossXBPars er.java:199) ... 43 more Caused by: org.jboss.xb.binding.JBossXBRuntimeException: -1:-1 94:3 The markup i n the document preceding the root element must be well-formed. at org.jboss.xb.binding.sunday.unmarshalling.XsdBinderTerminatingErrorHa ndler.handleError(XsdBinderTerminatingErrorHandler.java:40) at org.apache.xerces.impl.xs.XMLSchemaLoader.reportDOMFatalError(Unknown Source) at org.apache.xerces.impl.xs.XSLoaderImpl.load(Unknown Source) at org.jboss.xb.binding.Util.loadSchema(Util.java:395) at org.jboss.xb.binding.sunday.unmarshalling.XsdBinder.bind(XsdBinder.ja va:176) at org.jboss.xb.binding.sunday.unmarshalling.XsdBinder.bind(XsdBinder.ja va:147) at org.jboss.xb.binding.resolver.AbstractMutableSchemaResolver.resolve(A bstractMutableSchemaResolver.java:285) ... 58 more

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  • Perl: Event-driven Programming

    - by Shiftbit
    Is there any POSIX signals that I could utilize in my perl program to create event-driven programming? Currently I have multi-process program that is able to cross communicate but my parent thread is only able to listen to listen at one child at a time. foreach (@threads) { sysread(${$_}{'read'}, my $line, 100); chomp($line); print "Parent hears: $line\n"; } The problem is that the parent sits in a continual wait state until it receives it a signal from the first child before it can continue on. I am relying on 'pipe' for my intercommunication. My current solution is very similar to: http://stackoverflow.com/questions/2558098/how-can-i-use-pipe-to-facilitate-interprocess-communication-in-perl If possible I would like to rely on a $SIG{...} event or any non-CPAN solution.

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  • Adding Columns to JTable dynamically

    - by martilyo
    I have an empty JTable, absolutely nothing in it. I need to dynamically generate its table columns in a certain way. A simplified version for the code I have for my attempt: @Action public void AddCol() { for (int i = 0; i < 10; i++) { TableColumn c = new TableColumn(i); c.setHeaderValue(getColNam(i)); table.getColumnModel().addColumn(c); } } But I'm getting an Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 0 >= 0 error. What am I doing wrong?

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  • How to reuse socket in .NET?

    - by Hermann
    I am trying to reconnect to a socket that I have disconnected from but it won't allow it for some reason even though I called the Disconnect method with the argument "reuseSocket" set to true. _socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); _socket.Connect(ipAddress, port); //...receive data _socket.Disconnect(true); //reuseSocket = true //...wait _socket.Connect(ipAddress, port); //throws an InvalidOperationException: Once the socket has been disconnected, you can only reconnect again asynchronously, and only to a different EndPoint. BeginConnect must be called on a thread that won't exit until the operation has been completed. What am I doing wrong?

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  • Removing Divider Line from UISplitViewController

    - by tilomitra
    Guys, I know a similar question exists but the thread seems to be inactive, and I really would like this question to be answered. It's been annoying me for a few days now. I'm wondering how to remove the divider line between the Master and Detail view in the UISplitViewController. I know its possible to remove/hide/cover it up because I see some apps in the store without that line. I have tried setting backgroundColor to clearColour on my views but to no avail. So SO community, you're my only hope!

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  • Not able to access UNC share after doing the Imperosnation

    - by Nitin Jain
    We have to access a network UNC share which is say allowing access to USER1. Our exe is running with LOCAL SYSTEM account. In the exe, we do Impersonation with "USER1" credentials so that exe can access UNC share. But after doing the impersonation, we are still getting error "Access denied" while accessing that UNC share. After the impersonation, we are enabling following privileges on the Impersonated thread: SE_BACKUP_NAME SE_CHANGE_NOTIFY_NAME SE_CREATE_GLOBAL_NAME SE_DEBUG_NAME SE_IMPERSONATE_NAME SE_RESTORE_NAME SE_SECURITY_NAME SE_TAKE_OWNERSHIP_NAME SE_TCB_NAME Do we need to enable any other privileges or we are missing something else? Thanks -- Nitin

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  • Error "window" is not defined when loading Protovis from javax.script?

    - by Shane
    I am loading Protovis using javax.script: ScriptEngineManager factory = new ScriptEngineManager(); ScriptEngine engine = factory.getEngineByName(scriptEngine); engine.eval(new java.io.FileReader("protovis-d3.1.js")); But I get the following exception: Exception in thread "main" javax.script.ScriptException: sun.org.mozilla.javascr ipt.internal.EcmaError: ReferenceError: "window" is not defined. (<Unknown sourc e>#5033) in <Unknown source> at line number 5033 at com.sun.script.javascript.RhinoScriptEngine.eval(Unknown Source) at javax.script.AbstractScriptEngine.eval(Unknown Source) at RJScript.EvalScript(RJScript.java:20) at RJScript.main(RJScript.java:26) This same script runs from a browser. Do I need to do something so that the "window" is defined?

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  • C# threading pattern that will let me flush

    - by Jeff Alexander
    I have a class that implements the Begin/End Invocation pattern where I initially used ThreadPool.QueueUserWorkItem() to do thread my work. I now have the side effect where someone using my class is calling the Begin (with callback) a ton of times to do a lot of processing so ThreadPool.QueueUserWorkItem is creating a ton of threads to do the processing. That in itself isn't bad but there are instances where they want to abandon the processing and start a new process but they are forced to wait for their first request to finish. Since ThreadPool.QueueUseWorkItem() doesn't allow me to cancel the threads I am trying to come up with a better way to queue up the work and maybe use an explicit FlushQueue() method in my class to allow the caller to abandon work in my queue. Anyone have any suggestion on a threading pattern that fits my needs?

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  • Best practices for large solutions in Visual Studio (2008)

    - by Eyvind
    We have a solution with around 100+ projects, most of them C#. Naturally, it takes a long time to both open and build, so I am looking for best practices for such beasts. Along the lines of questions I am hoping to get answers to, are: how do you best handle references between projects should "copy local" be on or off? should every project build to its own folder, or should they all build to the same output folder(they are all part of the same application) are solutions folders a good way of organizing stuff? I know that splitting the solution up into multiple smaller solutions is an option, but that comes with its own set of refactoring and building headaches, so perhaps we can save that for a separate thread :-)

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  • How to tell if a datareader is open on a connection and close it

    - by Earlz
    Hi, I'm setting up a little thing for connection pooling and on of the more common bugs that we have occur(its always an easy fix, but we just can't remember reader.Close()!) it is when we have a connection that is used by a lot of classes/methods and one method opens a data reader and forgets to close it. This isn't really bad cause a lot of times all you have to do is go into the debugger and go up one level and see the function before it was and check if it had an unclosed data reader. Now, here is the bigger problem. In this connection pool, if a datareader is open, then it's not known until a thread gets a connection and tries to use it and the thing that originally opened the data reader may no longer even be alive. So quite simply, how can you detect if a data reader is open on a connection and is there a way to close the reader without closing the connection?

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  • OBJ-C: Call an instance of core-plot graph from separate view controller

    - by Kevin
    I'm using a view controller i.e. ViewController:UIViewController and have another class GraphViewController:UIViewController . How do I call an instance of GraphViewController and place it into my ViewController? I am currently trying to call the plot within my ViewController directly, but I want to make the graph modular so I don't have to copy code if I use the same graph again. ViewController has methods -(void) refreshGraph; //Inhereted Methods -(NSUInteger)numberOfRecordsForPlot:(CPPlot *)plot; -(NSNumber *)numberForPlot:(CPPlot *)plot field:(NSUInteger)fieldEnum recordIndex:(NSUInteger)index; How do I move these methods to a separate class and then call it to get the same plot in my ViewController? I am sure there must be a thread on this somewhere but I can't seem to find it.

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  • Sql Server Service Broker Conversation Groups

    - by Brian Hasden
    Can someone explain conversation groups in service broker? Currently, I'm using service broker to send messages from one SQL server to another. On the sending server, I'm trying to correlate the messages so they are processed in serial on the receiving side. Based on the documentation, conversation groups seem to be a perfect fit for this, but on the receiving server, the messages get assigned to a different conversation group from the one I specified when sending the message. I've search around the web and saw that this behavior seems to be intended (http://social.msdn.microsoft.com/forums/en-US/sqlservicebroker/thread/baf48074-6804-43ab-844a-cb28a6dce02b/), but then I'm confused about the usefulness of the syntax from (http://msdn.microsoft.com/en-us/library/ms178624.aspx) WAITFOR( GET CONVERSATION GROUP @conversation_group_id FROM [dbo].[ReceiveQueue] ) If the conversation group doesn't come across with the message from the sender and messages sent with the same conversation group id don't have the same conversation group id on the receive side, what's the point of the code above?

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