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• C# Object Pooling Pattern implementation

  - by Chris Marisic

  Does anyone have a good resource on implementing a shared object pool strategy for a limited resource in vein of Sql connection pooling? (ie would be implemented fully that it is thread safe)

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• Convert integer enum to string

  - by user216205

  Hi Guys, considering the following enum: public enum LeadStatus { Cold = 1, Warm = 2, Hot = 3, Quote = 5, Convert = 6 } How can I convert the integer value back to string when I pull the value from a database. I've tried: DomainModel.LeadStatus status = (DomainModel.LeadStatus)Model.Status; but all I seem to get is "status = 0"

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• PHP Find and replace after in a string?

  - by TheBlackBenzKid

  I have some strings which contain the words LIMIT 3, 199 or LIMIT 0, 100. Basically I want to replace the word LIMIT and everything after it in my string. How do I do this in PHP? str_replace only replaces an item and the LIMIT text after is dynamic/ So it could be WHEN JOHN WAS TRYING HIS SQL QUERY, HE FOUND THAT LIMIT, 121 // RETURN WOULD BE WHEN JOHN WAS TRYING HIS SQL QUERY, HE FOUND THAT WHEN JOHN TRIED LIMIT 343, 333 HE FOUND // RETURN WOULD BE WHEN JOHN TRIED

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• I can not addObject to NSMutableArray initializedWith 5 string objects

  - by ahmet732

  NSMutableArray *array = [[NSArray alloc] initWithObjects:@"Apranax Forte", @"Actified",@"Zostex 125 MG",@"Zoprotec 30 MG",@"Arveles 25 MG"]; [array insertObject:@"Ahmet" atIndex:[array count] + 1]; // Neither that nor this one [array addObject:@"Ahmet"] work !!!1 I want to append the Ahmet string to the NSMutableArray array object ... Can anyone help me ?

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• object explorer control

  - by šljaker

  I'm writing application for code generation and I would like to use object explorer control such as the one in visual studio, so I can manually design my objects. How can I do that?

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• Unreferenced Thread object dispose

  - by Benny

  If i use thread like this: void foo() { new Thread().Start(); } since the Thread object is not referenced, will it be disposed by GC before the designated work is done?

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• Call virtual method from base class on object of derived type

  - by Nikola Smiljanic

  class Base { public: virtual void foo() const { std::cout << "Base"; } }; class Derived : public Base { public: virtual void foo() const { std::cout << "Derived"; } }; Derived d; // call Base::foo on this object Tried casting and function pointers but I couldn't do it. Is it possible to defeat virtual mechanism (only wondering if it's possible)?

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• Get Primary Key out of Zend_Db_Table_Rowset Object

  - by mr.alex

  Hi Everybody, inside of my Zend_Db_Table_Rowset Object i found this: ["_primary:protected"] ... does anybody if theres a way to access this? ... maybe something like $rowsetObject->getPrimary() Thanks for your help, Alex

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• VBA check if object is set

  - by LanguaFlash

  I have a global variable that is an instance of my custom class. How to I check if the object is set or if I need to initialize it? Thanks, Jeff

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• Bring object to the front, in Flash AS3

  - by jimbo

  Hi All, i have the below code, which is basically animating object across the screen, when roll-over happens it pauses the anim, and displays some information. Everything works fine, but when its paused, i wold like that current object to be 'on top' so other items run behind. I have looked at setChildIndex, but didn't have much luck. package { import flash.display.MovieClip; import flash.display.Sprite; import flash.events.MouseEvent; import flash.geom.Point; import flash.events.KeyboardEvent; import flash.events.*; import caurina.transitions.Tweener; import fl.motion.Color; public class carpurchase extends Sprite { public function carpurchase() { var carX = 570; //Set cars var car1:fullCar = new fullCar(); car1.info.alpha = 0; //var c:Color = new Color(); //c.setTint(0xff0000, 0.8); //car2.car.transform.colorTransform=c; car1.x = carX; car1.y = 280; car1.info.title.text = "test"; car1.info.desc.text = "test"; addChild(car1); car1.addEventListener(MouseEvent.ROLL_OVER, carPause); car1.addEventListener(MouseEvent.ROLL_OUT, carContinue); function car1Reset():void { Tweener.addTween(car1, {x:carX, time:0, onComplete:car1Tween}); } function car1Tween():void { Tweener.addTween(car1, {x:-120, time:2, delay:3, transition:"linear", onComplete:car1Reset}); } car1Tween(); var car2:fullCar = new fullCar(); car2.info.alpha = 0; var c:Color = new Color(); c.setTint(0xff0000, 0.8); car2.car.transform.colorTransform=c; car1.x = carX; car2.y = 175; car2.info.title.text = "test"; car2.info.desc.text = "test"; addChild(car2); car2.addEventListener(MouseEvent.ROLL_OVER, carPause); car2.addEventListener(MouseEvent.ROLL_OUT, carContinue); function car2Reset():void { Tweener.addTween(car2, {x:carX, time:0, onComplete:car2Tween}); } function car2Tween():void { Tweener.addTween(car2, {x:-120, time:3, delay:0, transition:"linear", onComplete:car2Reset}); } car2Tween(); function carPause(e:MouseEvent):void { Tweener.pauseTweens(e.target); Tweener.addTween(e.target.info, {y:-150, alpha:1, time:.5, transition:"easeout"}); } function carContinue(e:MouseEvent):void { Tweener.addTween(e.target.info, {y:10, alpha:0, time:.5, transition:"easeout"}); Tweener.resumeTweens(e.target); } } } Any help welcome

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• IVsEditorAdaptersFactoryService.CreateVsTextViewAdapter throws an object null reference

  - by Adam Driscoll

  I'm trying to create a IVsTextViewAdpater with the IVsEditorAdaptersFactoryService but when I call CreateVsTextViewAdapter it throws an object null reference: var editorFactory = componentModel.GetService<IVsEditorAdaptersFactoryService>(); var serviceProvider = (Microsoft.VisualStudio.OLE.Interop.IServiceProvider)this; var view = editorFactory.CreateVsTextViewAdapter(serviceProvider); 'this' is a Microsoft.VisualStudio.Shell.Package implementation. Any ideas?

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• Create a ruby Proc from a string

  - by user252787

  I want to define the block as a string, then create the lambda. The following example does not work. Is something like this possible? code_string = "|x|x*2" l = lambda {eval(code_string)} l.call(3) => 6

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• std::string x(x);

  - by FredOverflow

  std::string x(x); This crashes very badly on my compiler. Does this mean I should test for this != &that in my own copy constructors, or can I assume that no client will ever be so stupid?

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• C - Convert long int to signed hex string

  - by Ben

  I have a long int variable that I need to convert to a signed 32bit hexadecimal string (8 characters) (char array) without the "0x" at the start? How would I go about doing this? Thanks.

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• How to convert a HTMLElement to a string

  - by Turtle

  Hi, I am going to create an xml element in javascript to exchange data with server side. I found I can do it with document.createElement.But I do not know how to convert it to string. Is there any API in browser to make it easier? Or is there any js lib incudling this API? Thanks in advance.

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• How to make CodeIgniter accept "query string" URLs?

  - by Peter

  According to CI's docs, CodeIgniter uses a segment-based approach, for example: example.com/my/group If I want to find a specific group (id=5), I can visit example.com/my/group/5 And in the controller, define function group($id='') { ... } Now I want to use the traditional approach, which CI calls "query string" URL. Example: example.com/my/group?id=5 If I go to this URL directly, I get a 404 page not found. So how can I enable this?

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• Traverse all the Nodes of a JSON Object Tree with JavaScript

  - by Takis Chan

  I'd like to traverse a JSON object tree, but cannot find any library for that. It doesn't seem difficult but it feels like reinventing the wheel. In XML there are so many tutorials showing how to traverse an XML tree with DOM :(

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• insert multiple elements in string in python

  - by Anurag Sharma

  I have to build a string like this { name: "john", url: "www.dkd.com", email: "[email protected]" } where john, www.dkd.com and [email protected] are to be supplied by variables I tried to do the following s1 = "{'name:' {0},'url:' {1},'emailid:' {2}}" s1.format("john","www.dkd.com","[email protected]") I am getting the following error Traceback (most recent call last): File "<stdin>", line 1, in <module> KeyError: "'name" Dont able to understand what I am doing wrong

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• Convert a ResultSet String Into a Workable Variable to Populate a jTable

  - by Nathan Campos

  I'm building a application that needs to convert a ResultSet String(rs.getString(Names);) into a workable variable to populate a jTable, only one collumn, then the rest I think that I could try by doing a loop. How could I do this?

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• Using functions in models to dynamically fill fields on object creation in Django

  - by danspants

  Within Django, can a function local to a model be called on object creation to dynamically fill a field? class someModel(models.Model): id = models.FloatField(primary_key=True, default=generate_id()) def generate_id(self): newId=time.time() return newId So far I haven't had any luck with getting it to work or with locating documentation that covers it.

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• Sharing an object between threads

  - by Dave18

  How would you set the object data that is shared between threads and needs to be updated once after the complete cycle of (say) two threads in busy loop? CRITICAL_SECTION critical_section_; int value; //needs to be updated once after the cycle of any number of threads running in busy loop void ThreadsFunction(int i) { while (true) { EnterCriticalSection(&critical_section_); /* Lines of Code */ LeaveCriticalSection(&critical_section_); } }

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• How do you scale a pictureLink object in Excel 2010

  - by vzczc

  In Excel 2007 it is possible to scale a pictureLink object (created with the Camera Tool) using the following VBA code. With ActiveWorkbook.Sheets(sht).Pictures(name) .ShapeRange.ScaleWidth scaleValue, msoTrue .ShapeRange.ScaleHeight scaleValue, msoTrue .top = top .left = left End With This code places the picture correctly in 2010, but the scaleValue is ignored. The 2010 Excel documentation is patchy on this subject. The same code works fine in Excel 2007.

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• emacs 23 hangs on python mode when typing string block """

  - by Gopalakrishnan Subramani

  My emacs hangs (Ubuntu 9 + emacs 23 + pyflakes) when I type """ quotes for string blocks. anybody experience the same problem? I think, it may not be the emacs problem but some python mode or pyflakes which I use it for error checking. Anybody hot around the issue? It really frustrating experience.

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• how to create a JSON object in action class of JAVA

  - by Jugal

  I want to create a JSON object. I have tried the following myString=new JSONObject().put("JSON", sampleClass).toString(); but mystring gives me {"SampleClass@170f98"}. I also tried the following XStream xsStream=new XStream(new JsonHierarchicalStreamDriver()); SampleClass sampleClass=new SampleClass(userset.getId(),userset.getUsername()); myString=xsStream.toXML(sampleClass); It works but when i use getJSON in javascript to get myString it does not work.

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• Hibernate mapping to object that already exists

  - by teehoo

  I have two classes, ServiceType and ServiceRequest. Every ServiceRequest must specify what kind of ServiceType it is. All ServiceType's are predefined in the database, and ServiceRequest is created at runtime by the client. Here are my .hbm files: <hibernate-mapping> <class dynamic-insert="false" dynamic-update="false" mutable="true" name="xxx.model.entity.ServiceRequest" optimistic-lock="version" polymorphism="implicit" select-before-update="false"> <id column="USER_ID" name="id"> <generator class="native"/> </id> <property name="quantity"> <column name="quantity" not-null="true"/> </property> <many-to-one cascade="all" class="xxx.model.entity.ServiceType" column="service_type" name="serviceType" not-null="false" unique="false"/> </class> </hibernate-mapping> and <hibernate-mapping> <class dynamic-insert="false" dynamic-update="false" mutable="true" name="xxx.model.entity.ServiceType" optimistic-lock="version" polymorphism="implicit" select-before-update="false"> <id column="USER_ID" name="id"> <generator class="native"/> </id> <property name="description"> <column name="description" not-null="false"/> </property> <property name="cost"> <column name="cost" not-null="true"/> </property> <property name="enabled"> <column name="enabled" not-null="true"/> </property> </class> </hibernate-mapping> When I run this, I get com.mysql.jdbc.exceptions.MySQLIntegrityConstraintViolationException: Cannot add or update a child row: a foreign key constraint fails I think my problem is that when I create a new ServiceRequest object, ServiceType is one of its properties, and therefore when I'm saving ServiceRequest to the database, Hibernate attempts to insert the ServiceType object once again, and finds that it is already exists. If this is the case, how do I make it so that Hibernate points to the exists ServiceType instead of trying to insert it again?

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