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  • How to configure MySQL connection properties with Spring, Hibernate 3.3 and c3p0?

    - by sfussenegger
    I am currently in the process of upgrading an application from Hibernate 3.2 to Hibernate 3.3. I though I'd stick with the default connection pool (Hibernate changed its default from Commons DBCP to c3p0) as I don't have any good reason to choose a non-default pool. At least non but having used DBCP before. The upgrade went pretty much without any problems so far. The only thing I can't get to work is passing properties to the underlying MySQL JDBC4Connection. Up to now, I used DBCP's BasicDataSource.addConnectionProperty(String,String) to pass properties (useUnicode=true, characterEncodin=UTF-8, characterSetResults=UTF-8, zeroDateTimeBehavior=convertToNull). However, I can't find any way to do the same with c3p0 other than including them in the JDBC URL. (That's something I'd like to avoid as I wanna keep the URL configurable without forcing users to include those parameters.) So far, I've tried to use a ConnectionCustomizer without success. Any other suggestions?

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  • What is better to have more LUNs or more Storages

    - by skomak
    Hi, what is better to have - more LUNs or more Storages. Actually i have 1 storage ESXi per 1 LUN so there are about 15 LUNs and 15 storages. Now there is a kind of problem because the LUNs have different space allocated so if i remove 2 LUNs f.e. 1 2 3 4 [x] 6 [x] 8 9 (like that) i can't make 1 LUN from 5 and 7 pieces of free diskspace on IBM storage array. It's a first argument to not have a lot of LUNs. If i had to make only a few LUNs (about 3) and inside some Storage from ESXi would it be a better idea? For example for expanding storage capacity? i look for good solutions. Thanks in advance.

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  • Estimate gaussian (mixture) density from a set of weighted samples

    - by Christian
    Assume I have a set of weighted samples, where each samples has a corresponding weight between 0 and 1. I'd like to estimate the parameters of a gaussian mixture distribution that is biased towards the samples with higher weight. In the usual non-weighted case gaussian mixture estimation is done via the EM algorithm. Does anyone know an implementation (any language is ok) that permits passing weights? If not, does anyone know how to modify the algorithm to account for the weights? If not, can some one give me a hint on how to incorporate the weights in the initial formula of the maximum-log-likelihood formulation of the problem? Thanks!

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  • PHP Menu Question

    - by Vecta
    As one of the steps toward a greater website redesign I am putting the majority of the content of our website into html files to be used as includes. I am intending on passing a variable to the PHP template page through the URL to call the proper include. Our website has many programs that each need an index page as well as about 5 sub-pages. These program pages will need a menu system to navigate between the different pages.I am naming the pages pagex_1, pagex_2, pagex_3, etc. where "pagex" is descriptive of the page content. My question is, what would be the best way to handle this menu system? Is there a way to modify the initial variable used to arrive at the index page to create links in the menu to arrive at the other pages? Thanks for any help!

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  • Jasper Sub reports not showing in main report

    - by BlackPanther
    I am having one jasper report.Inside of the that main report I am adding one sub report.I am passing collections and parameters using java class(Not using sql query directly).It is compiling successfully. But while running it shows only main report.It is not showing the sub report.And also it is not making any error. It is just giving some empty space for that place. Can any one tell me how to solve this? What are all the rules I have to follow while adding subreport in jasper?

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  • Grails pattern to reuse template on error

    - by bsreekanth
    Hello, I have a gsp template, where the data for create view is passed through the controller. def create = { def bookInstance = new Book() bookInstance .properties = params def map = getDefaultValues() render(template: "create", model: [bookInstance : bookInstance , title: map.title, somelist: somelist ....]) the gsp template <g:select optionKey="id" from="${somelist}" name="somelist.id" value="${bookInstance ?.somelist?.id}" noSelection="['null': '']"></g:select> now, in the save method, if there is an error, it returns currently populated and validated instance (default scaffold implementation) render(template: "create", model: [bookInstance : bookInstance ]) But the fields in the gsp (error page rendered from save action) is empty. I could see the reason as it looks the value in "${somelist}" , but it is not used in save method. Do i just need to check for null in the gsp and use whichever map is available, or any better method (passing all the map in the save method is not an option) .. thanks in advance..

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  • Manipulating pixels using only toDataURL

    - by Chris
    The problem I have is this: I need to be able to dynamically tint an image using Javascript, but I cannot access pixel data via the canvas. I can, however, store the dataURL (or any other text-based data format) and include that with the code, manipulate that data, and then create an image object using that dataURL. My question is, how can I access the RGBA value of each pixel, given only the dataURL. I assume I need to decode the base64 url, but into what format in order to manipulate on the pixel level? And then would be it be as trivial as re-encoding it as base64, slapping it in a url, and the passing to an image? Thanks.

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  • Generating .coverage file programmatic way with Visual Studio 2010

    - by prosseek
    I need to generate .coverage file programmatic way. This post explains a C# code to do it as follows. using System; using System.Collections.Generic; using System.Text; using System.Diagnostics; using Microsoft.VisualStudio.Coverage; using Microsoft.VisualStudio.Coverage.Analysis; // You must add a reference to Microsoft.VisualStudio.Coverage.Monitor.dll namespace Microsoft.VisualStudio { class DumpProgram { static void Main(string[] args) { Process p = new Process(); StringBuilder sb = new StringBuilder("/COVERAGE "); sb.Append("hello.exe"); p.StartInfo.FileName = "vsinstr.exe"; p.StartInfo.Arguments = sb.ToString(); p.Start(); p.WaitForExit(); // TODO: Look at return code – 0 for success // A guid is used to keep track of the run Guid myrunguid = Guid.NewGuid(); Monitor m = new Monitor(); m.StartRunCoverage(myrunguid, "hello.coverage"); // Complete the run m.FinishRunCoverage(myrunguid); Unfortunately, when I compile this code, I get the following error. bin2xml.cs(26,22): error CS0246: The type or namespace name 'Monitor' could not be found (are you missing a using directive or an assembly reference?) bin2xml.cs(26,38): error CS0246: The type or namespace name 'Monitor' could not be found (are you missing a using directive or an assembly reference?) As this post says, there are some changes between VS2008 and VS2010, I think the Monitor class is in some different namespace. What might be wrong? How can I generate the .coverage file programmatically with Visual Studio 2010? ADDED I added using System.Threading to run to get the following error. I run the command csc bin2xml.cs /r:Microsoft.VisualStudio.Coverage.Analysis.dll. bin2xml.cs(28,21): error CS0723: Cannot declare a variable of static type 'System.Threading.Monitor' bin2xml.cs(28,33): error CS0712: Cannot create an instance of the static class 'System.Threading.Monitor' bin2xml.cs(29,23): error CS1061: 'System.Threading.Monitor' does not contain a definition for 'StartRunCoverage' and no extension method 'StartRunCoverage' accepting a first argument of type 'System.Threading.Monitor' could be found (are you missing a using directive or an assembly reference?) bin2xml.cs(31,23): error CS1061: 'System.Threading.Monitor' does not contain a definition for 'FinishRunCoverage' and no extension method 'FinishRunCoverage' accepting a first argument of type 'System.Threading.Monitor' could be found (are you missing a using directive or an assembly reference?) ADDED2 I compiled the code with the following command. csc bin2xml.cs /r:Microsoft.VisualStudio.Coverage.Analysis.dll /r:Microsoft.VisualStudio.Coverage.Monitor.dll Then, I got these error messages. Monitor m = new Monitor(); is at the line 27. bin2xml.cs(27,21): error CS0246: The type or namespace name 'Monitor' could not be found (are you missing a using directive or an assembly reference?) bin2xml.cs(27,37): error CS0246: The type or namespace name 'Monitor' could not be found (are you missing a using directive or an assembly reference?)

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  • What is "read operations inside transactions can't allow failover" ?

    - by Kenyth
    From time to time I got the following exception message on GAE for my GAE/J app. I searched with Google, no relevant results were found. Does anyone know about this? Thanks in advance for any response! The exception message is as below: Nested in org.springframework.orm.jpa.JpaSystemException: Illegal argument; nested exception is javax.persistence.PersistenceException: Illegal argument: java.lang.IllegalArgumentException: read operations inside transactions can't allow failover at com.google.appengine.api.datastore.DatastoreApiHelper.translateError(DatastoreApiHelper.java: 34) at com.google.appengine.api.datastore.DatastoreApiHelper.makeSyncCall(DatastoreApiHelper.java: 67) at com.google.appengine.api.datastore.DatastoreServiceImpl $1.run(DatastoreServiceImpl.java:128) at com.google.appengine.api.datastore.TransactionRunner.runInTransaction(TransactionRunner.java: 30) at com.google.appengine.api.datastore.DatastoreServiceImpl.get(DatastoreServiceImpl.java: 111) at com.google.appengine.api.datastore.DatastoreServiceImpl.get(DatastoreServiceImpl.java: 84) at com.google.appengine.api.datastore.DatastoreServiceImpl.get(DatastoreServiceImpl.java: 77) at org.datanucleus.store.appengine.RuntimeExceptionWrappingDatastoreService.get(RuntimeExceptionWrappingDatastoreService.java: 53) at org.datanucleus.store.appengine.DatastorePersistenceHandler.get(DatastorePersistenceHandler.java: 94) at org.datanucleus.store.appengine.DatastorePersistenceHandler.get(DatastorePersistenceHandler.java: 106) at org.datanucleus.store.appengine.DatastorePersistenceHandler.fetchObject(DatastorePersistenceHandler.java: 464) at org.datanucleus.state.JDOStateManagerImpl.loadUnloadedFieldsInFetchPlan(JDOStateManagerImpl.java: 1627) at org.datanucleus.state.JDOStateManagerImpl.loadFieldsInFetchPlan(JDOStateManagerImpl.java: 1603) at org.datanucleus.ObjectManagerImpl.performDetachAllOnCommitPreparation(ObjectManagerImpl.java: 3192) at org.datanucleus.ObjectManagerImpl.preCommit(ObjectManagerImpl.java: 2931) at org.datanucleus.TransactionImpl.internalPreCommit(TransactionImpl.java: 369) at org.datanucleus.TransactionImpl.commit(TransactionImpl.java:256) at org.datanucleus.jpa.EntityTransactionImpl.commit(EntityTransactionImpl.java: 104) at org.datanucleus.store.appengine.jpa.DatastoreEntityTransactionImpl.commit(DatastoreEntityTransactionImpl.java: 55) at name.kenyth.playtweets.service.Tx.run(Tx.java:39) at name.kenyth.playtweets.web.controller.TwitterApiController.persistStatus(TwitterApiController.java: 309) at name.kenyth.playtweets.web.controller.TwitterApiController.processStatusesForWebCall(TwitterApiController.java: 271) at name.kenyth.playtweets.web.controller.TwitterApiController.getHomeTimelineUpdates_aroundBody0(TwitterApiController.java: 247) at name.kenyth.playtweets.web.controller.TwitterApiController $AjcClosure1.run(TwitterApiController.java:1) at name.kenyth.playtweets.web.refine.AuthenticationEnforcement.ajc $around$name_kenyth_playtweets_web_refine_AuthenticationEnforcement $2$439820b7proceed(AuthenticationEnforcement.aj:1) at name.kenyth.playtweets.web.refine.AuthenticationEnforcement.ajc $around$name_kenyth_playtweets_web_refine_AuthenticationEnforcement $2$439820b7(AuthenticationEnforcement.aj:168) at name.kenyth.playtweets.web.controller.TwitterApiController.getHomeTimelineUpdates(TwitterApiController.java: 129) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Method.java:43) at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.doInvokeMethod(HandlerMethodInvoker.java: 710) at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java: 167) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java: 414) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java: 402) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java: 771) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java: 716) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java: 647) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java: 552) at javax.servlet.http.HttpServlet.service(HttpServlet.java:693) at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: 511) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java: 390) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java: 216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java: 182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java: 765) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java: 418) at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:327) at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126) at org.tuckey.web.filters.urlrewrite.NormalRewrittenUrl.doRewrite(NormalRewrittenUrl.java: 195) at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java: 159) at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java: 141) at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java: 90) at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java: 417) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java: 71) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java: 76) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java: 88) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java: 76) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java: 97) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java: 35) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java: 43) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java: 388) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java: 216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java: 182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java: 765) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java: 418) at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java: 238) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: 152) at org.mortbay.jetty.Server.handle(Server.java:326) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: 542) at org.mortbay.jetty.HttpConnection $RequestHandler.headerComplete(HttpConnection.java:923) at com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java: 76) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java: 135) at com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java: 250) at com.google.apphosting.base.RuntimePb$EvaluationRuntime $6.handleBlockingRequest(RuntimePb.java:5838) at com.google.apphosting.base.RuntimePb$EvaluationRuntime $6.handleBlockingRequest(RuntimePb.java:5836) at com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest(BlockingApplicationHandler.java: 24) at com.google.net.rpc.impl.RpcUtil.runRpcInApplication

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  • Disable auto resize this page when opening in IE

    - by Stan
    If open yahoo finance chart in IE, the chart will be resized to fit the viewing window, and making the chart viewable without scrolling down. However, this makes the chart become smaller for me. I would like to see original size, which requires me to click the setting bar and change something to make it restore original size. The chart shows original size in Chrome. Is it possible to view original size in IE by passing some parameters in url? I was trying looking into source code but found nothing.

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  • Marshal a C++ class to C#

    - by Adam Haile
    I need to access code in a native C++ DLL in some C# code but am having issues figuring out the marshaling. I've done this before with code that was straight C, but seem to have found that it's not directly possible with C++ classes. Made even more complicated by the fact that many of the classes contain virtual or inline functions. I even tried passing the headers through the PInvoke Interop Assistant, but it would choke on just about everything and not really no what to do... I'm guessing because it's not really supported. So how, if at all possible, can you use a native C++ class DLL from .NET code. If I have to use some intermediary (CLR C++?) that's fine.

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  • Loading an OverlayView from XIB -vs- programmatically for use with UIImagePickerController

    - by PLG
    I am currently making a camera app for iPhone and I have a strange phenomenon that I can't figure out. I would appreciate some help understanding. When recreating an overlay view for passing to UIImagePickerController, I have been successfully been able to create the view programmatically. What I haven't been able to do is create the view with/without controller in IB, load it and pass it to the overlay pointer successfully. If I do it via IB, the view is not opaque and obscures the view of the camera completely. I can not figure out why. I was thinking that the normal view pointer might be assigned when loading from XIB and therefore overwrite the camera's view, but I have an example programmatically where view and overlayView are set equal in the controller class. Perhaps the load order is overwriting a pointer? Help would be appreciated... kind regards.

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  • Mac OS date command - getting higher temporal resolution

    - by Mark
    Hey all, I am trying to use the date command in Terminal on multiple Mac OS X machines that are synced via NTP to synchronize some code in a program. Essentially I am running a program... MyProgram with arguments[date] I can get date to give me the seconds since the Unix epoch with the %M specifier. When I try to use %N to get nanosecond resolution, date just returns N. Is there anyway to get date to give me finer then second resolution? I wouldn't even mind passing two arguments such as (date +%M):arg2 And then converting units in the program. Many thanks in advance! %N specifier listed here: http://en.wikipedia.org/wiki/Date_(Unix)

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  • The cost of nested methods

    - by Palimondo
    In Scala one might define methods inside other methods. This limits their scope of use to inside of definition block. I use them to improve readability of code that uses several higher-order functions. In contrast to anonymous function literals, this allows me to give them meaningful names before passing them on. For example: class AggregatedPerson extends HashSet[PersonRecord] { def mostFrequentName: String = { type NameCount = (String, Int) def moreFirst(a: NameCount, b: NameCount) = a._2 > b._2 def countOccurrences(nameGroup: (String, List[PersonRecord])) = (nameGroup._1, nameGroup._2.size) iterator.toList.groupBy(_.fullName). map(countOccurrences).iterator.toList. sortWith(moreFirst).head._1 } } Is there any runtime cost because of the nested method definition I should be aware of? Does the answer differ for closures?

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  • How can I pass a raw System.Drawing.Image to an .ashx?

    - by Mike C
    I am developing an application that stores images as Base64 strings in xml files. I also want to allow the user to crop the image before saving it to the file, preferably all in memory without having to save a temp file, and then delete it afterwards. In order to display the newly uploaded image, I need to create a HTTP handler that I can bind the asp:Image to. The only examples for doing this online require passing the .ashx an ID and then pulling the image from a DB or other data store. Is it possible to somehow pass the raw data to the .ashx in order to get back the image? Thanks, Mike

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  • .NET - downloading multiple pages from a website with a single DNS query

    - by lampak
    I'm using HttpRequest to download several pages from a website (in a loop). Simplifying it looks like this: HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create( "http://sub.domain.com/something/" + someString ); HttpWebResponse resp = (HttpWebResponse)req.GetResponse(); //do something I'm not quite sure actually but every request seems to resolve the address again (I don't know how to test if I'm right). I would like to boost it a little and resolve the address once and then reuse it for all requests. I can't work out how to force HttpRequest into using it, though. I have tried using Dns.GetHostAddresses, converting the result to a string and passing it as the address to HttpWebRequest.Create. Unfortunately, server returns error 404 then. I managed to google that's probably because the "Host" header of the http query doesn't match what the server expects. Is there a simple way to solve this?

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  • DataTable C# Empty column type

    - by Dested
    I am trying build a DataTable one row at a time using the following code. foreach (var e in Project.ProjectElements[hi.FakeName].Root.Elements()) { index = 0; object[] obj=new object[count]; foreach (var holdingColumn in names) { string d = e.Attribute(holdingColumn.Key).Value; obj[index++] = d; } dt.Rows.Add(obj); } The problem is the DataTable has types tied to the columns. Sometimes im passing null (or an empty string) in that object index and it is telling me that it cant be converted properly to a DateTime (in this case). My question is what should I default this value to, or is there some way to have the DataTable ignore empty values.

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  • %HOMEPATH% Posh-Git error in Powershell, in ConEmu on Windows 7 64-bit

    - by atwright
    I am always getting the following error in Posh-Git in Powershell, in ConEmu on Windows 7 64-bit: Resolve-Path : Cannot find path 'C:\wamp\www\MobileApps\Backbone\%HOMEPATH%' because it does not exist. At D:\Users\Andy\Documents\WindowsPowerShell\Modules\posh-git\GitUtils.ps1:265 char:13 + $home = Resolve-Path (Invoke-NullCoalescing $Env:HOME ~) + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : ObjectNotFound: (C:\wamp\www\Mob...bone\%HOMEPATH%:String) [Resolve-Path], ItemNotFoundException + FullyQualifiedErrorId : PathNotFound,Microsoft.PowerShell.Commands.ResolvePathComma nd Join-Path : Cannot bind argument to parameter 'Path' because it is null. At D:\Users\Andy\Documents\WindowsPowerShell\Modules\posh-git\GitUtils.ps1:266 char:29 + Resolve-Path (Join-Path $home ".ssh\$File") -ErrorAction SilentlyContinue 2> ... + ~~~~~ + CategoryInfo : InvalidData: (:) [Join-Path], ParameterBindingValidationExc eption + FullyQualifiedErrorId : ParameterArgumentValidationErrorNullNotAllowed,Microsoft.Po werShell.Commands.JoinPathCommand Can anybody advise what might be wrong?

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  • SqlParameter contructor compiler overload choice

    - by Ash
    When creating a SqlParameter (.NET3.5) or OdbcParameter I often use the SqlParameter(string parameterName, Object value) constructor overload to set the value in one statement. When I tried passing a literal 0 as the value paramter I was initially caught by the C# compiler choosing the (string, OdbcType) overload instead of (string, Object). MSDN actually warns about this gotcha in the remarks section, but the explanation confuses me. Why does the C# compiler decide that a literal 0 parameter should be converted to OdbcType rather than Object? The warning also says to use Convert.ToInt32(0) to force the Object overload to be used. It confusingly says that this converts the 0 to an "Object type". But isn't 0 already an "Object type"? The Types of Literal Values section of this page seems to say literals are always typed and so inherit from System.Object. This behavior doesn't seem very intuitive given my current understanding? Is this something to do with Contra-variance or Co-variance maybe?

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  • Removing stopwords,but should return as a line

    - by Sarath R Nair
    My question may appear silly. But as I am a rookie in Python , help me out. I have to pass a line to a stopword removal function. It works fine. But my problem is return of the function is appending the words. I want it as like follows: line = " I am feeling good , but I cant talk" Let "I,but,cant" are stopwords. After passing to the function , my output should be as "am feeling good , talk". What I a getting now is [['am','feeling','good','talk']]. Help me.

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  • Does JUnit4 testclasses require a public no arg constructor?

    - by Thomas Baun
    I have a test class, written in JUnit4 syntax, that can be run in eclipse with the "run as junit test" option without failing. When I run the same test via an ant target I get this error: java.lang.Exception: Test class should have public zero-argument constructor at org.junit.internal.runners.MethodValidator.validateNoArgConstructor(MethodValidator.java:54) at org.junit.internal.runners.MethodValidator.validateAllMethods(MethodValidator.java:39) at org.junit.internal.runners.TestClassRunner.validate(TestClassRunner.java:33) at org.junit.internal.runners.TestClassRunner.<init>(TestClassRunner.java:27) at org.junit.internal.runners.TestClassRunner.<init>(TestClassRunner.java:20) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:26) at junit.framework.JUnit4TestAdapter.<init>(JUnit4TestAdapter.java:24) at junit.framework.JUnit4TestAdapter.<init>(JUnit4TestAdapter.java:17) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:386) at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:911) at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:768) Caused by: java.lang.NoSuchMethodException: dk.gensam.gaia.business.bonusregulering.TestBonusregulerAftale$Test1Reader.<init>() at java.lang.Class.getConstructor0(Class.java:2706) at java.lang.Class.getConstructor(Class.java:1657) at org.junit.internal.runners.MethodValidator.validateNoArgConstructor(MethodValidator.java:52) I have no public no arg constructor in the class, but is this really necessary? This is my ant target <target name="junit" description="Execute unit tests" depends="compile, jar-test"> <delete dir="tmp/rawtestoutput"/> <delete dir="test-reports"/> <mkdir dir="tmp/rawtestoutput"/> <junit printsummary="true" failureproperty="junit.failure" fork="true"> <classpath refid="class.path.test"/> <classpath refid="class.path.model"/> <classpath refid="class.path.gui"/> <classpath refid="class.path.jfreereport"/> <classpath path="tmp/${test.jar}"></classpath> <batchtest todir="tmp/rawtestoutput"> <fileset dir="${build}/test"> <include name="**/*Test.class" /> <include name="**/Test*.class" /> </fileset> </batchtest> </junit> <junitreport todir="tmp"> <fileset dir="tmp/rawtestoutput"/> <report todir="test-reports"/> </junitreport> <fail if="junit. failure" message="Unit test(s) failed. See reports!"/> </target> The test class have no constructors, but it has an inner class with default modifier. It also have an anonymouse inner class. Both inner classes gives the "Test class should have public zero-argument constructor error". I am using Ant version 1.7.1 and JUnit 4.7

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  • Inserting the record into Data Base through JPA

    - by vinay123
    In my code I am using JSF - Front end , EJB-Middile Tier and JPA connect to DB.Calling the EJB using the Webservices.Using MySQL as DAtabase. I have created the Voter table in which I need to insert the record. I ma passing the values from the JSF to EJB, it is working.I have created JPA controller class (which automatcally generates the persistence code based on the data base classes) Ex: getting the entity manager etc., em = getEntityManager(); em.getTransaction().begin(); em.persist(voter); em.getTransaction().commit(); I have created the named query also: @NamedQuery(name = "Voter.insertRecord", query = "INSERT INTO Voter v values v.voterID = :voterID,v.password = :password,v.partSSN = :partSSN,v.address = :address, v.zipCode = :zipCode,v.ssn = :ssn, v.vFirstName = :vFirstName,v.vLastName = :vLastName,v.dob = :dob"),But still not able to insert the record? Can anyone help me in inserting the record into the Data base through JPA.(Persistence object)?

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  • Where to Start with build a personal site and WordPress, CSS and CMS

    - by Simon
    Hey guys im in a very confused state of mind at the moment and need some help with Word Press and generally starting a website. My parents have had a business for 20 years and have finally decided to get a website! As im studying IT and Business i said id get it done for them. Rather than design it from scratch i used a template which i bought from themeforest.net (awesome template!) and yesterday a friend mentioned in passing using word press as a CMS which i had never heard of before, and he left before i could ask any questions. SO basically i have a site working on my computer and i have no idea how to get it live as a .com or .com.au, so far as i can see wordpress is a blog with .wordpress.com which isnt what im looking for. Thanks in advance Simon

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  • Reported error code considered SQL Injection?

    - by inquam
    SQL injection that actually runs a SQL command is one thing. But injecting data that doesn't actually run a harmful query but that might tell you something valuable about the database, is that considered SQL injection? Or is it just used as part to construct a valid SQL injection? An example could be set rs = conn.execute("select headline from pressReleases where categoryID = " & cdbl(request("id")) ) Passing this a string that could not be turned into a numeric value would cause Microsoft VBScript runtime error '800a000d' Type mismatch: 'cdbl' which would tell you that the column in question only accepts numeric data and is thus probably of type integer or similar. I seem to find this in a lot of pages discussing SQL injection, but don't really get an answer if this in itself is considered SQL injection. The reason for my question is that I have a scanning tool that report a SQL injection vulnerability and reports a VBScript runtime error '800a000d' as the reason for the finding.

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  • Removing a result from Queryset

    - by Enrico
    Is there a simple way to discard/remove the last result in a queryset without affecting the db? I am trying to paginate results in Django, but don't know the total number of objects for a given query. I was planning on using next/previous or older/newer links, so I only need to know if this is the first and/or last page. First is easy to check. To check for the last page I can compare the number of results with the pagesize or make a second query. The first method fails to detect the last page when the number of results in the last set equals the pagesize (ie 100 records get broken into 10 pages with the last page containing exactly 10 results) and I would like to avoid making a second query. My current thought is that I should fetch pagesize + 1 results from the db. If the queryset length equals 11, I know this is not the last page and I want to discard the last result in the queryset before passing the queryset to the template.

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