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• Location of New Window after old window closed

  - by John Brayton

  I have an app that allows multiple windows. I have a strange bug where, if I repeatedly open and close windows, new windows are positioned lower and lower on the screen. I would expect this if I were keeping the windows open, but it seems that the OS X window tiling mechanism is unaware of when my windows are closing. Potentially relevant notes: I am using garbage collection. This is not a document-based app. When I close a window, the corresponding menu item is removed from the "Window" menu. Any hints as to what I might be doing wrong would be appreciated. Thanks!

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• Does anyone have any EPiServer Exam Tips?

  - by gilles27

  Myself and some colleagues have just been told that we are all taking the EPiServer CMS certification exam on Friday. Having done some research on the web it does sound like a challenging exam - I've heard that only one in six people pass it. There doesn't seem to be much in the way of learning material, beyond what is described on the EPiServer site, this blog post and this blog post. Has anyone else out there passed recently and if so can they provide any hints or tips? Any help would be appreciated.

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• Inverse Logistic Function / Reverse Sigmoid Function

  - by Chanq

  I am currently coding up a fuzzy logic library in java. I have found the equations for all the standard functions - Grade, inverseGrade, Triangle, Trapezoid, Gaussian. However, I can't find the inverse of the sigmoid/ logistic function. The way I have written the logistic function is java is : //f(x) = 1/(1+e(-x)) public double logistic(double x){ return (1/(1+(Math.exp(-x))); } But I can't work out or find the inverse anywhere. My algebraic/calculus abilities are fairly limited, hence why I haven't been able to work out the inverse of the function. Any hints or pointers would be a big help. Thanks

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• Producer/consumer in Grails?

  - by Mulone

  Hi all, I'm trying to implement a Consumer/Producer app in Grails, after several unsuccessful attempts at implementing concurrent threads. Basically I want to store all the events coming from a clients (through separate AJAX calls) in a single queue and then process such a queue in a linear way as soon as new events are added. This looks like a Producer/Consumer problem: http://en.wikipedia.org/wiki/Producer-consumer_problem How can I implement this in Grails (maybe with a timer or even better by generating an event 'process queue')? Basically I'd like to a have a singleton service waiting for new events in the queue and processing them linearly (even if the queue is loaded by several concurrent processes). Any hints? Cheers!

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• Hibernate: @UniqueConstraint with @ManyToOne field???

  - by Misha Koshelev

  Dear All: Using the following code: @Entity @Table(uniqueConstraints=[@UniqueConstraint(columnNames=["account","name"])]) class Friend { @Id @GeneratedValue(strategy=GenerationType.AUTO) public Long id @ManyToOne public Account account public String href public String name } I get the following error: org.hibernate.AnnotationException: Unable to create unique key constraint (account, name) on table Friend: account not found It seems this has to do with the @ManyToOne constraint, which I imagine actually creates a separate UniqueConstraint??? In any case, if I take this out, there is no complaint about the UniqueConstraint, but there is another error which makes me believe it must be left in. org.hibernate.MappingException: Could not determine type for: com.mksoft.fbautomate.domain.Account, at table: Friend, for columns: [org.hibernate.mapping.Column(account)] Any hints how I can create such a desired constraint (i.e., that each combination of account and name occurs only once???) Thank you! Misha

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• NFOP performance problem

  - by Jay Stevens

  We're using NFOP in a project (C#, ASP.NET 2.0) to ultimately return PDF files to the user. The process currently goes like this: Stored Procedure - XML XML - XSLT - XSL-FO XSL-FO - NFOP - PDF This works fine, the PDF is generated BEAUTIFULLY. The problem is that it takes 300+ seconds to do it. The ANTS profiler indicates that the problem is sitting in the driver.run() method inside of NFOP. It's not like this is a gargantuan amount of data, the size of the xsl-fo source going into the nfop driver object is ~980k. What's the most likely source and resolution of this problem? ANY hints or tips or answers are most appreciated, we were supposed to head to VA scan at 11 am. :|

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• In which DLL is the COM interface iStream defined?

  - by Youval Bronicki

  I'm a complete newbie to Windows and COM programming, trying to use com4j in order to call a COM object from Java. Com4j generates Java interfaces from COM definitions "often found in .ocx, .dll, .exe, and/or .tlb files" . It was easy for me to locate the .ocx file of my target COM object, but I have no clue regarding the standard interface iStream. Microsoft's documentation mentions OLE32.DLL ( c:\Windows\Windows32\Ole32.dll ?) , but neither the com4j generator nor oleviewer succeed in opening this file. Any hints?

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• WebsiteSpark & Visual Studio 2010

  - by Amadiere

  Having a look around at WebsiteSpark from Microsoft - the deal is good (especially if you were looking to go down this path already). But I'm one of those people that likes to 'wait for the next version' if I'm in no rush to sign up. One question that's been bugging me is whether or not the program includes upgrades to Visual Studio and/or they will change the starting pack at some point? Currently, If you sign up now, you get 3 copies of Visual Studio 2008. If you're umming and ahhing about the scheme, is it worth waiting and hoping that they adapt their program so that it comes with VS2010? Or maybe that they'll offer free updates to those already in the scheme? (This question may be a little subjective I guess and it probably applies to the BizSpark side of things as well. Have there been any hints set in other Microsoft programs that might indicate the outcome? ).

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• HTTP Builder/Groovy - get source text _and_ XmlSlurper output?

  - by Misha Koshelev

  Dear All: I am reading here: http://groovy.codehaus.org/modules/http-builder/doc/get.html I seem to be able to get i) XMLSlurper output as parsed by NekoHTML using: def http = new HTTPBuilder('http://www.google.com') def html = http.get( path : '/search', query : [q:'Groovy'] ) ii) Raw text using: http.get( path : '/search', contentType : TEXT, query : [q:'Groovy'] ) { resp, reader -> println "response status: ${resp.statusLine}" println 'Headers: -----------' resp.headers.each { h -> println " ${h.name} : ${h.value}" } println 'Response data: -----' System.out << reader println '\n--------------------' } I am having some trouble and would like to get BOTH (i) and (ii) to debug my XmlSlurper code on the actual html I am getting. Any suggestions how I might go about doing this? I can easily instantiate an XmlSlurper object with the relevant string using the parseString(string) method or the parse(reader) method, but I cannot seem to get the Neko processing step correct. Any hints? Thank you! Misha

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• Wordpress Digg-Like Voting System Plugin

  - by mikemick

  I just found out about BuddyPress (a collection of plugins that convert a WordPress MU install into a social network) and now I was wondering if there are any Digg-like voting plugins for WordPress. This would eventually integrate into a BuddyPress website, where the site members would submit, vote and comment on stories (much like Digg). I have a feeling I will end up having to build this from scratch, but since the site will be built on WordPress, I was wondering if there were any plugins already available that add this functionality. So far I have come up empty in my search. I did find a Wordpress blog that had this functionality WpVote. It even creates thumbnails of the story webpage automatically (I'm assuming) using websnapr. I browsed through the page source and didn't seem to find any hints of a WP plugin that they are using.

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• Full outer join in django

  - by Ber

  How can I create a query for a full outer join across a M2M relationchip using the django QuerySet API? It that is not supported, some hint about creating my own manager to do this would be welcome. Edited to add: @S.Lott: Thanks for the enlightenment. The need for the OUTER JOIN comes from the application. It has to generate a report showing the data entered, even if it still incomplete. I was not aware of the fact that the result would be a new class/model. Your hints will help me quite a bit.

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• how to word wrap a QTreeWidgetItem

  - by japs

  hello all, i have to populate a QTreeWidget with items (or children of items) that may happen to be too long to fit in a single line, so i'm looking for a way to word wrap them. i thought myQTreeWidget.setWordWrap(True) (done via QtDesigner4) would have done the job, but that doesn't seem to be the case. i don't konw if it is relevant, but the tree is enveloped in a splitter frame, so the wrapping should be somehow dynamic to allow resizing of the splitter. Any ideas? I use PyQt4, but hints in any language/binding would be much appreciated. have a good day all.

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• UnitTest++ creates cmd windows, which can't be closed

  - by Simon

  Hello, I have a setup for using UnitTest++ like this in VS2008. Sometimes the cmd window, which shows the console output of the unit tests just hangs. I can move the window, resize and stuff, but I'm unable to close it. I see the window in the App tab of the Task Manager, but not in the Process tab, "Switch to process" doesn't work either. Stop debugging or closing VS is also no help, it seems VS has lost control over this window. If this cmd window is lost, I'm unable to shutdown my computer, which is pretty annoying Any hints?

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• what architecture for implementing a richtext editor?

  - by genesys

  Hi! Can someone give me some hints on how a clean implementation (designwise) of a richtext editor could look like that allows for things like setting fonts, setting character colors and so on? And when and how are characters rendered? are characters rendered only once and the bitmap representation is cached? Is there any article or book covering what software design would be appropriate for that? background is that we're working on a text editing software for a language that cannot be displayed with unicode any hint is appreciated! thanks!

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• Identify cause of hundreds of AJP threads in Tomcat

  - by Rich

  We have two Tomcat 6.0.20 servers fronted by Apache, with communication between the two using AJP. Tomcat in turn consumes web services on a JBoss cluster. This morning, one of the Tomcat machines was using 100% of CPU on 6 of the 8 cores on our machine. We took a heap dump using JConsole, and then tried to connect JVisualVM to get a profile to see what was taking all the CPU, but this caused Tomcat to crash. At least we had the heap dump! I have loaded the heap dump into Eclipse MAT, where I have found that we have 565 instances of java.lang.Thread. Some of these, obviously, are entirely legitimate, but the vast majority are named "ajp-6009-XXX" where XXX is a number. I know my way around Eclipse MAT pretty well, but haven't been able to find an explanation for it. If anyone has some pointers as to why Tomcat may be doing this, or some hints on finding out why using Eclipse MAT, that'd be appreciated!

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• Integrating Pentaho/Talend/etc. with an OR Mapper

  - by DaDaDom

  We have an application (Java) with an own OR mapper. Within this system we have what can be compared to Hibernate's interceptors (we call it triggers): Do specific actions just before saving data in the database, after it's deleted and so on. The underlying database is MySQL. Now we would like to use tools such as Pentaho Data Integration or Talend to convert data to put it into our system. It's no problem to do that directly on the SQL level, but by doing so we loose the built-in power of our triggers. Is there a way to somehow integrate any of the Data Integration solutions into our existing application? It would be great if there was a way to write into instances of our classes instead of writing into the database directly. Any hints welcome :-)

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• Highlight field in source code pane of Findbugs UI

  - by Ryan Fernandes

  I'm using a class that extends BytecodeScanningDetector to check for some problematic fields in a class. After detecting whether the field is problematic, I add it to the bug report like below: Once I run findbugs, it identifies the bug, lists it in the left pane, but does not highlight the corresponding source line. Any hints/help on this will be very appreciated. public void visit(Field f) { if (isProblematic(getXField())) { bugReporter.reportBug(new BugInstance(this, tBugType, HIGH_PRIORITY) .addClass(currentClass) //from visit(JavaClass) .addField(this)); } } public void visit(JavaClass someObj) { currentClass = someObj.getClassName(); } P.S. I tried posting this on the findbugs list but... no joy.

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• mingw32-make : "Input line too long" issue

  - by hjsblogger

  We have a Makefile which runs on a Windows 2003 machine and we are using mingw32-make for it. Since the Makefile has many include paths, it exceeds the buffer size of 8K that the cmd can handle [Ref - http://support.microsoft.com/kb/830473/EN-US/due to which the compilation results in "input line too long" issue. I wanted to know the following - What would be the best way to optimize the Makefile as I have already removed unwanted compiler switches, include paths etc. Is there any way we can put all the INCLUDE paths in one .txt file and import it in the Makefile.I could not find any mingw32 documentation for the same. Any other inputs/hints/reference links are most welcome. Thanks, -HJSblogger

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• Qt: Writing plugins for other applications

  - by Rasmus Faber

  I am writing a plugin for another application. I want to support the plugin on multiple platforms, so I am strongly considering using Qt. The plugin needs to be able to show some basic GUI. The plugin interface does not in any way handle GUI - it is just a simple DLL/shared library specified with a C-header file. Can I use Qt inside such a shared library? The calling application might or might not be using Qt itself. Any hints on what to do? Do I need to run a QApplication event-loop in a separate thread? Or can I just call the event-loop myself while waiting for input? (I only need modal dialogs).

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• Asp.Net MVC 2 Client validation implementation for Enterprise Library Validation Block

  - by er-v

  Hello to everybody. I've found a very good article about how to use EntLib Validation Block for server validation in MVC 2. But as there pointed out The current design of EntLib’s Validation Application Block uses the Composite pattern; that is, when we ask for validation for an object, it returns back a single validator object that contains a list of all the validation work to be done. While this is very convenient from a normal usage scenario, the unfortunate side-effect is that we can’t “peek inside” to see what the individual validations are that it’s doing, and therefore can’t generate the appropriate client-side validation hints. So how is it possible to implement client side validation for EntLib? Is there work around?

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• Running Sybase ISQL scripts from windows batch file

  - by user1328709

  I have already researched on this site as well as on google extensively for this. I have created a number of batch files that perform certain automated transactions(backups etc) on our production database. i want to further simplify my end of day processes by taking the dumps using a script that accepts input of some parameters. the script is able to login the isql prompt but unable to do the execution of the commands. @ECHO ***Started*** @ECHO Enter MonthDay(MMDD) SET /p md= @ECHO %md% mkdir \\10.20.1.17\arch\212%md%_banking set run=isql -Uuser -SORBITS -Ppass %run% @echo dump database banking to '/media/newArch/212%md%_banking/212%md%EOD_banking.dmp' with compression=5 @echo dump database master to '/media/newArch/212%md%_banking/212%md%EOD_master.dmp' @echo go pause I have been unsuccessful at putting these in a separate script file because the script itself uses a passed parameter. Please give me hints and links to Thanks

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• How to include file outside document root?

  - by Brayn

  Hey, What I want do to is to include 'file1.php' from 'domain1' into 'file2.php' on 'domain2'. So what I figured I should do is something like this: file2.php require_once '/var/www/vhosts/domain1/httpdocs/file1.php'; But this won't work for reasons I can't truly grasp. So what I did was to add my path to the include path. Something like: file2.php set_include_path(get_include_path() . PATH_SEPARATOR . "/var/www/vhosts/domain1/httpdocs"); require_once 'file1.php'; So can you please give me some hints as of where I'm doing wrong ? Thanks UPDATE - Either way I get the following error message: Fatal error: require() [function.require]: Failed opening required '/var/www/vhosts/domain1/httpdocs/file1.php' (include_path='.:/php/includes:/usr/share/pear/') in /var/www/vhosts/domain2/httpdocs/file2.php on line 4 Also I have tried this both with safe_mode On and Off. UPDATE2: Also I've changed the permissions to 777 on my test file and I've double-checked the paths to the include file in bash.

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• Using jquery scrollTop to position absolute Div

  - by Tim

  Hello, I am trying to position an Absolute DIV using Jquery, depending on where the user is clicking on the page. At the moment this works just great $('#window').css('left', jsEvent.pageX); $('#window').css('top', jsEvent.pageY); This positions the element exactly where my mouse has clicked the screen... Until you scroll down that is. That is why I am trying to achieve something that will take the amount of pixels from the top of the page into account. I thought something like this... $('#window').css('top', jsEvent.pageY + scrollTop()); would do the trick, unfortunately it doesn't work. Any hints? Thanks, Tim

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• Unit testing with django-celery?

  - by Jason Webb

  I am trying to come up with a testing methodology for our django-celery project. I have read the notes in the documentation, but it didn't give me a good idea of what to actually do. I am not worried about testing the tasks in the actual daemons, just the functionality of my code. Mainly I am wondering: How can we bypass task.delay() during the test (I tried setting CELERY_ALWAYS_EAGER = True but it made no difference)? How do we use the test settings that are recommended (if that is the best way) without actually changing our settings.py? Can we still use manage.py test or do we have to use a custom runner? Overall any hints or tips for testing with celery would be very helpful.

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• Assigning to struct in different class

  - by 4thSpace

  I have a struct in ClassA and want to assign it to the same struct in ClassB (the two structs are the same with different names). ClassA and ClassB are view controllers. Basically, I need to pass this struct to another class. However, structs don't seem to be exposed as members, which means I can't access them. Here is ClassA's struct declared in its header file: typedef struct { NSString *startDate; NSString *endDate; NSString *classId; } selectedItemsClassAStruct; selectedItemsClassAStruct selectedItemsClassA; and the same for ClassB (just with ClassA text replaced) It doesn't appear in code hints for ClassB. I see this error if I try to access it: request for member 'selectedItemsClassBStruct' in something not a structure or union How should it be done?

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