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• Functional programming compared to OOP with classes

  - by luckysmack

  I have been interested in some of the concepts of functional programming lately. I have used OOP for some time now. I can see how I would build a fairly complex app in OOP. Each object would know how to do things that object does. Or anything it's parents class does as well. So I can simply tell Person().speak() to make the person talk. But how do I do similar things in functional programming? I see how functions are first class items. But that function only does one specific thing. Would I simply have a say() method floating around and call it with an equivalent of Person() argument so I know what kind of thing is saying something? So I can see the simple things, just how would I do the comparable of OOP and objects in functional programming, so I can modularize and organize my code base? For reference, my primary experience with OOP is Python, PHP, and some C#. The languages that I am looking at that have functional features are Scala and Haskell. Though I am leaning towards Scala. Basic Example (Python): Animal(object): def say(self, what): print(what) Dog(Animal): def say(self, what): super().say('dog barks: {0}'.format(what)) Cat(Animal): def say(self, what): super().say('cat meows: {0}'.format(what)) dog = Dog() cat = Cat() dog.say('ruff') cat.say('purr')

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• StreamInsight 2.1, meet LINQ

  - by Roman Schindlauer

  Someone recently called LINQ “magic” in my hearing. I leapt to LINQ’s defense immediately. Turns out some people don’t realize “magic” is can be a pejorative term. I thought LINQ needed demystification. Here’s your best demystification resource: http://blogs.msdn.com/b/mattwar/archive/2008/11/18/linq-links.aspx. I won’t repeat much of what Matt Warren says in his excellent series, but will talk about some core ideas and how they affect the 2.1 release of StreamInsight. Let’s tell the story of a LINQ query. Compile time It begins with some code: IQueryable<Product> products = ...; var query = from p in products             where p.Name == "Widget"             select p.ProductID; foreach (int id in query) {     ... When the code is compiled, the C# compiler (among other things) de-sugars the query expression (see C# spec section 7.16): ... var query = products.Where(p => p.Name == "Widget").Select(p => p.ProductID); ... Overload resolution subsequently binds the Queryable.Where<Product> and Queryable.Select<Product, int> extension methods (see C# spec sections 7.5 and 7.6.5). After overload resolution, the compiler knows something interesting about the anonymous functions (lambda syntax) in the de-sugared code: they must be converted to expression trees, i.e.,“an object structure that represents the structure of the anonymous function itself” (see C# spec section 6.5). The conversion is equivalent to the following rewrite: ... var prm1 = Expression.Parameter(typeof(Product), "p"); var prm2 = Expression.Parameter(typeof(Product), "p"); var query = Queryable.Select<Product, int>(     Queryable.Where<Product>(         products,         Expression.Lambda<Func<Product, bool>>(Expression.Property(prm1, "Name"), prm1)),         Expression.Lambda<Func<Product, int>>(Expression.Property(prm2, "ProductID"), prm2)); ... If the “products” expression had type IEnumerable<Product>, the compiler would have chosen the Enumerable.Where and Enumerable.Select extension methods instead, in which case the anonymous functions would have been converted to delegates. At this point, we’ve reduced the LINQ query to familiar code that will compile in C# 2.0. (Note that I’m using C# snippets to illustrate transformations that occur in the compiler, not to suggest a viable compiler design!) Runtime When the above program is executed, the Queryable.Where method is invoked. It takes two arguments. The first is an IQueryable<> instance that exposes an Expression property and a Provider property. The second is an expression tree. The Queryable.Where method implementation looks something like this: public static IQueryable<T> Where<T>(this IQueryable<T> source, Expression<Func<T, bool>> predicate) {     return source.Provider.CreateQuery<T>(     Expression.Call(this method, source.Expression, Expression.Quote(predicate))); } Notice that the method is really just composing a new expression tree that calls itself with arguments derived from the source and predicate arguments. Also notice that the query object returned from the method is associated with the same provider as the source query. By invoking operator methods, we’re constructing an expression tree that describes a query. Interestingly, the compiler and operator methods are colluding to construct a query expression tree. The important takeaway is that expression trees are built in one of two ways: (1) by the compiler when it sees an anonymous function that needs to be converted to an expression tree, and; (2) by a query operator method that constructs a new queryable object with an expression tree rooted in a call to the operator method (self-referential). Next we hit the foreach block. At this point, the power of LINQ queries becomes apparent. The provider is able to determine how the query expression tree is evaluated! The code that began our story was intentionally vague about the definition of the “products” collection. Maybe it is a queryable in-memory collection of products: var products = new[]     { new Product { Name = "Widget", ProductID = 1 } }.AsQueryable(); The in-memory LINQ provider works by rewriting Queryable method calls to Enumerable method calls in the query expression tree. It then compiles the expression tree and evaluates it. It should be mentioned that the provider does not blindly rewrite all Queryable calls. It only rewrites a call when its arguments have been rewritten in a way that introduces a type mismatch, e.g. the first argument to Queryable.Where<Product> being rewritten as an expression of type IEnumerable<Product> from IQueryable<Product>. The type mismatch is triggered initially by a “leaf” expression like the one associated with the AsQueryable query: when the provider recognizes one of its own leaf expressions, it replaces the expression with the original IEnumerable<> constant expression. I like to think of this rewrite process as “type irritation” because the rewritten leaf expression is like a foreign body that triggers an immune response (further rewrites) in the tree. The technique ensures that only those portions of the expression tree constructed by a particular provider are rewritten by that provider: no type irritation, no rewrite. Let’s consider the behavior of an alternative LINQ provider. If “products” is a collection created by a LINQ to SQL provider: var products = new NorthwindDataContext().Products; the provider rewrites the expression tree as a SQL query that is then evaluated by your favorite RDBMS. The predicate may ultimately be evaluated using an index! In this example, the expression associated with the Products property is the “leaf” expression. StreamInsight 2.1 For the in-memory LINQ to Objects provider, a leaf is an in-memory collection. For LINQ to SQL, a leaf is a table or view. When defining a “process” in StreamInsight 2.1, what is a leaf? To StreamInsight a leaf is logic: an adapter, a sequence, or even a query targeting an entirely different LINQ provider! How do we represent the logic? Remember that a standing query may outlive the client that provisioned it. A reference to a sequence object in the client application is therefore not terribly useful. But if we instead represent the code constructing the sequence as an expression, we can host the sequence in the server: using (var server = Server.Connect(...)) {     var app = server.Applications["my application"];     var source = app.DefineObservable(() => Observable.Range(0, 10, Scheduler.NewThread));     var query = from i in source where i % 2 == 0 select i; } Example 1: defining a source and composing a query Let’s look in more detail at what’s happening in example 1. We first connect to the remote server and retrieve an existing app. Next, we define a simple Reactive sequence using the Observable.Range method. Notice that the call to the Range method is in the body of an anonymous function. This is important because it means the source sequence definition is in the form of an expression, rather than simply an opaque reference to an IObservable<int> object. The variation in Example 2 fails. Although it looks similar, the sequence is now a reference to an in-memory observable collection: var local = Observable.Range(0, 10, Scheduler.NewThread); var source = app.DefineObservable(() => local); // can’t serialize ‘local’! Example 2: error referencing unserializable local object The Define* methods support definitions of operator tree leaves that target the StreamInsight server. These methods all have the same basic structure. The definition argument is a lambda expression taking between 0 and 16 arguments and returning a source or sink. The method returns a proxy for the source or sink that can then be used for the usual style of LINQ query composition. The “define” methods exploit the compile-time C# feature that converts anonymous functions into translatable expression trees! Query composition exploits the runtime pattern that allows expression trees to be constructed by operators taking queryable and expression (Expression<>) arguments. The practical upshot: once you’ve Defined a source, you can compose LINQ queries in the familiar way using query expressions and operator combinators. Notably, queries can be composed using pull-sequences (LINQ to Objects IQueryable<> inputs), push sequences (Reactive IQbservable<> inputs), and temporal sequences (StreamInsight IQStreamable<> inputs). You can even construct processes that span these three domains using “bridge” method overloads (ToEnumerable, ToObservable and To*Streamable). Finally, the targeted rewrite via type irritation pattern is used to ensure that StreamInsight computations can leverage other LINQ providers as well. Consider the following example (this example depends on Interactive Extensions): var source = app.DefineEnumerable((int id) =>     EnumerableEx.Using(() =>         new NorthwindDataContext(), context =>             from p in context.Products             where p.ProductID == id             select p.ProductName)); Within the definition, StreamInsight has no reason to suspect that it ‘owns’ the Queryable.Where and Queryable.Select calls, and it can therefore defer to LINQ to SQL! Let’s use this source in the context of a StreamInsight process: var sink = app.DefineObserver(() => Observer.Create<string>(Console.WriteLine)); var query = from name in source(1).ToObservable()             where name == "Widget"             select name; using (query.Bind(sink).Run("process")) {     ... } When we run the binding, the source portion which filters on product ID and projects the product name is evaluated by SQL Server. Outside of the definition, responsibility for evaluation shifts to the StreamInsight server where we create a bridge to the Reactive Framework (using ToObservable) and evaluate an additional predicate. It’s incredibly easy to define computations that span multiple domains using these new features in StreamInsight 2.1! Regards, The StreamInsight Team

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• Is there a canonical source supporting "all-surrogates"?

  - by user61852

  Background The "all-PK-must-be-surrogates" approach is not present in Codd's Relational Model or any SQL Standard (ANSI, ISO or other). Canonical books seems to elude this restrictions too. Oracle's own data dictionary scheme uses natural keys in some tables and surrogate keys in other tables. I mention this because these people must know a thing or two about RDBMS design. PPDM (Professional Petroleum Data Management Association) recommend the same canonical books do: Use surrogate keys as primary keys when: There are no natural or business keys Natural or business keys are bad ( change often ) The value of natural or business key is not known at the time of inserting record Multicolumn natural keys ( usually several FK ) exceed three columns, which makes joins too verbose. Also I have not found canonical source that says natural keys need to be immutable. All I find is that they need to be very estable, i.e need to be changed only in very rare ocassions, if ever. I mention PPDM because these people must know a thing or two about RDBMS design too. The origins of the "all-surrogates" approach seems to come from recommendations from some ORM frameworks. It's true that the approach allows for rapid database modeling by not having to do much business analysis, but at the expense of maintainability and readability of the SQL code. Much prevision is made for something that may or may not happen in the future ( the natural PK changed so we will have to use the RDBMS cascade update funtionality ) at the expense of day-to-day task like having to join more tables in every query and having to write code for importing data between databases, an otherwise very strightfoward procedure (due to the need to avoid PK colisions and having to create stage/equivalence tables beforehand ). Other argument is that indexes based on integers are faster, but that has to be supported with benchmarks. Obviously, long, varying varchars are not good for PK. But indexes based on short, fix-length varchar are almost as fast as integers. The questions - Is there any canonical source that supports the "all-PK-must-be-surrogates" approach ? - Has Codd's relational model been superceded by a newer relational model ?

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• Reflective discovery of an inner class in an API

  - by wassup

  Let me ask you, as this bothers me for quite a while but appears to be subjectively the best solution for my problem, if reflective discovery of an inner class for API purposes is that bad idea? First, let me explain what I mean by saying "reflective discovery" and all that stuff. I am sketching an API for a Java database system, that'll be centered around block-based entities (don't ask me what that means - that's a long story), and those entities can be read and returned to the Java code as objects subclassed from the Entity class. I have an Entity.Factory class, that, by means of fluent interfaces, takes a Class<? extends Entity> argument and then, uses an instance of Section.Builder, Property.Builder, or whatever builder the entity has, to put it into the back-end storage. The idea about registering all entity types and their builders just doesn't appeal to me, so I thought that the closest solution to the problem that'd suffice my design needs would be to discover, using reflection, all inner classes of Entity classes and find one that's called Builder. Looking for some expert insight :) And if I missed some important design details (which could happen as I tried to make this question as concise as possible), just tell me and I'll add them.

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• Who keeps removing that file?

  - by mgerdts

  Over the years, I've had many times when some file gets removed and there's no obvious culprit.  With dtrace, it is somewhat easy to figure out:  #! /usr/sbin/dtrace -wqs syscall::unlinkat:entry /cleanpath(copyinstr(arg1)) == "/dev/null"/ {         stop();         printf("%s[%d] stopped before removing /dev/null\n", execname, pid);         system("ptree %d; pstack %d", pid, pid); } That script will stop the process trying to remove /dev/null before it does it.  You can allow it to continue by restarting (unstopping?) the command with prun(1) or killing it with kill -9.  If you want the command to continue automatically after getting the ptree and pstack output, you can add "; prun %d" and another pid argument to the system() call.

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• Easter eggs as IP protection in software

  - by Simon

  I work in embedded software, and for some reason, management wants to hide an Easter egg as means of IP protection. They call it a watermark, and since our software interact with the video preview feed (the image displayed on a screen before you take a photo), they want me to implement a trigger which will react to some unusual video input (a video konami code like dark - bright - dark - bright - whatever). When this trigger fires, something strange happens (which is outside of the normal behavior of the software). The goal is to check whether our software is included in a device. Does it sound like a good idea? I have many argument against this move: What if the konami code is too sensitive and user triggers it? Does this kind of watermark have any legal value? What if this "feature" is discovered by the client? The performance penalty should be very small, since the soft run on small devices. I am the one developping this trigger. If things go wrong, what is my responsibility? What is your opinion about this method? I can't find a link, but I remember seeing an answer on this site suggesting that putting Easter eggs for protection purpose was a good idea. Has anyone tried it with good results?

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• C# 4.0 Optional/Named Parameters Beginner&rsquo;s Tutorial

  - by mbcrump

  One of the interesting features of C# 4.0 is for both named and optional arguments.  They are often very useful together, but are quite actually two different things.  Optional arguments gives us the ability to omit arguments to method invocations. Named arguments allows us to specify the arguments by name instead of by position.  Code using the named parameters are often more readable than code relying on argument position.  These features were long overdue, especially in regards to COM interop. Below, I have included some examples to help you understand them more in depth. Please remember to target the .NET 4 Framework when trying these samples. Code Snippet using System;   namespace ConsoleApplication3 {     class Program     {         static void Main(string[] args)         {               //C# 4.0 Optional/Named Parameters Tutorial               Foo();                              //Prints to the console | Return Nothing 0             Foo("Print Something");             //Prints to the console | Print Something 0             Foo("Print Something", 1);          //Prints to the console | Print Something 1             Foo(x: "Print Something", i: 5);    //Prints to the console | Print Something 5             Foo(i: 5, x: "Print Something");    //Prints to the console | Print Something 5             Foo("Print Something", i: 5);       //Prints to the console | Print Something 5             Foo2(i3: 77);                       //Prints to the console | 77         //  Foo(x:"Print Something", 5);        //Positional parameters must come before named arguments. This will error out.             Console.Read();         }           static void Foo(string x = "Return Nothing", int i = 0)         {             Console.WriteLine(x + " " + i + Environment.NewLine);         }           static void Foo2(int i = 1, int i2 = 2, int i3 = 3, int i4 = 4)         {             Console.WriteLine(i3);         }     } }

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• Repair ext4 filesystem on USB drive

  - by phineas

  Yet another filesystem question. I wanted to use a USB drive that I hadn't mounted for a month or so and was surprised by the fact Ubuntu was unable to mount it. I looked it up in the disk utility and it said it discovered a device with 17 MB instead of 2 GB. The hardware looks intact, I hope for the best for repairing the ext4 filesystem. I followed the instructions from HOWTO: Repair a broken Ext4 Superblock in Ubuntu, but I wasn't successful. # fsck.ext4 -v /dev/sdb e2fsck 1.42.5 (29-Jul-2012) ext2fs_open2: Bad magic number in super-block fsck.ext4: Superblock invalid, trying backup blocks... fsck.ext4: Bad magic number in super-block while trying to open /dev/sdb The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 Filesystem blocks are invalid, however when I run the recommended solution to try the alternate superblock, I get the following output: # e2fsck -b 8193 /dev/sdb e2fsck 1.42.5 (29-Jul-2012) e2fsck: Invalid argument while trying to open /dev/sdb plus the same error message as in the last paragraph above. Any ideas how to recover the drive? Thank you very much! Edit: testdisk won't help. I'm still stunned why the tools only discover 17 MB.

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• Can higher-order functions in FP be interpreted as some kind of dependency injection?

  - by Giorgio

  According to this article, in object-oriented programming / design dependency injection involves a dependent consumer, a declaration of a component's dependencies, defined as interface contracts, an injector that creates instances of classes that implement a given dependency interface on request. Let us now consider a higher-order function in a functional programming language, e.g. the Haskell function filter :: (a -> Bool) -> [a] -> [a] from Data.List. This function transforms a list into another list and, in order to perform its job, it uses (consumes) an external predicate function that must be provided by its caller, e.g. the expression filter (\x -> (mod x 2) == 0) [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] selects all even numbers from the input list. But isn't this construction very similar to the pattern illustrated above, where the filter function is the dependent consumer, the signature (a -> Bool) of the function argument is the interface contract, the expression that uses the higher-order is the injector that, in this particular case, injects the implementation (\x -> (mod x 2) == 0) of the contract. More in general, can one relate higher-order functions and their usage pattern in functional programming to the dependency injection pattern in object-oriented languages? Or in the inverse direction, can dependency injection be compared to using some kind of higher-order function?

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• foreign-architecture

  - by speedy-MACHO

  Always when I install something, I get the following error multiple times: Unknown configuration key 'foreign-architecture' found in your 'dpkg' configuration files. This warning will become a hard error at a later date, so please remove the offending configuration options and replace them with 'dpkg --add-architecture' invocations at the command line. When I try dpkg --add-architecture I get: Unknown configuration key `foreign-architecture' found in your `dpkg' configuration files. This warning will become a hard error at a later date, so please remove the offending configuration options and replace them with `dpkg --add-architecture' invocations at the command line. dpkg: error: --add-architecture takes one argument Type dpkg --help for help about installing and deinstalling packages [*]; Use `dselect' or `aptitude' for user-friendly package management; Type dpkg -Dhelp for a list of dpkg debug flag values; Type dpkg --force-help for a list of forcing options; Type dpkg-deb --help for help about manipulating *.deb files; Options marked [*] produce a lot of output - pipe it through `less' or `more' ! I've no problems yet, but since it says This warning will become a hard error at a later date I better do something about this. When I search 'foreign-architecture', I find an empty file, containing not a single byte. I somehow can't delete that file. Please help, it's a kind of creapy...

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• Questioning one of the arguments for dependency injection: Why is creating an object graph hard?

  - by oberlies

  Dependency injection frameworks like Google Guice give the following motivation for their usage (source): To construct an object, you first build its dependencies. But to build each dependency, you need its dependencies, and so on. So when you build an object, you really need to build an object graph. Building object graphs by hand is labour intensive (...) and makes testing difficult. But I don't buy this argument: Even without dependency injection, I can write classes which are both easy to instantiate and convenient to test. E.g. the example from the Guice motivation page could be rewritten in the following way: class BillingService { private final CreditCardProcessor processor; private final TransactionLog transactionLog; // constructor for tests, taking all collaborators as parameters BillingService(CreditCardProcessor processor, TransactionLog transactionLog) { this.processor = processor; this.transactionLog = transactionLog; } // constructor for production, calling the (productive) constructors of the collaborators public BillingService() { this(new PaypalCreditCardProcessor(), new DatabaseTransactionLog()); } public Receipt chargeOrder(PizzaOrder order, CreditCard creditCard) { ... } } So there may be other arguments for dependency injection (which are out of scope for this question!), but easy creation of testable object graphs is not one of them, is it?

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• Is individual code ownership important?

  - by Jim Puls

  I'm in the midst of an argument with some coworkers over whether team ownership of the entire codebase is better than individual ownership of components of it. I'm a huge proponent of assigning every member of the team a roughly equal share of the codebase. It lets people take pride in their creation, gives the bug screeners an obvious first place to assign incoming tickets, and helps to alleviate "broken window syndrome". It also concentrates knowledge of specific functionality with one (or two) team members making bug fixes much easier. Most of all, it puts the final say on major decisions with one person who has a lot of input instead of with a committee. I'm not advocating for requiring permission if somebody else wants to change your code; maybe have the code review always be to the owner, sure. Nor am I suggesting building knowledge silos: there should be nothing exclusive about this ownership. But when suggesting this to my coworkers, I got a ton of pushback, certainly much more than I expected. So I ask the community: what are your opinions on working with a team on a large codebase? Is there something I'm missing about vigilantly maintaining collective ownership?

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• CCSpriteHole in cocos2d 2.0?

  - by rakkarage

  i was using this cocos2d class CCSpriteHole in cocos2d 1.0 fine... http://jpsarda.tumblr.com/post/15779708304/new-cocos2d-iphone-extensions-a-progress-bar-and-a i am trying to convert it to cocos2d 2.0... i got it to compile by changing glVertexPointer to glVertexAttribPointer like in the 2.0 version of CCSpriteScale9 here http://jpsarda.tumblr.com/post/9162433577/scale9grid-for-cocos2d and changing contentSizeInPixels_ to contentSize_... -(id) init { if( (self=[super init]) ) { opacityModifyRGB_ = YES; opacity_ = 255; color_ = colorUnmodified_ = ccWHITE; capSize=capSizeInPixels=CGSizeZero; //Not used blendFunc_.src = CC_BLEND_SRC; blendFunc_.dst = CC_BLEND_DST; // update texture (calls updateBlendFunc) [self setTexture:nil]; // default transform anchor anchorPoint_ = ccp(0.5f, 0.5f); vertexDataCount=24; vertexData = (ccV2F_C4F_T2F*) malloc(vertexDataCount * sizeof(ccV2F_C4F_T2F)); [self setTextureRectInPixels:CGRectZero untrimmedSize:CGSizeZero]; } return self; } -(id) initWithTexture:(CCTexture2D*)texture rect:(CGRect)rect { NSAssert(texture!=nil, @"Invalid texture for sprite"); // IMPORTANT: [self init] and not [super init]; if( (self = [self init]) ) { [self setTexture:texture]; [self setTextureRect:rect]; } return self; } -(id) initWithTexture:(CCTexture2D*)texture { NSAssert(texture!=nil, @"Invalid texture for sprite"); CGRect rect = CGRectZero; rect.size = texture.contentSize; return [self initWithTexture:texture rect:rect]; } -(id) initWithFile:(NSString*)filename { NSAssert(filename!=nil, @"Invalid filename for sprite"); CCTexture2D *texture = [[CCTextureCache sharedTextureCache] addImage: filename]; if( texture ) return [self initWithTexture:texture]; return nil; } +(id)spriteWithFile:(NSString*)f { return [[self alloc] initWithFile:f]; } - (void) dealloc { if (vertexData) free(vertexData); } -(void) updateColor { ccColor4F color4; color4.r=(float)color_.r/255.0f; color4.g=(float)color_.g/255.0f; color4.b=(float)color_.b/255.0f; color4.a=(float)opacity_/255.0f; for (int i=0; i<vertexDataCount; i++) { vertexData[i].colors=color4; } } -(void)updateTextureCoords:(CGRect)rect { CCTexture2D *tex = texture_; if(!tex) return; float atlasWidth = (float)tex.pixelsWide; float atlasHeight = (float)tex.pixelsHigh; float left,right,top,bottom; left = rect.origin.x/atlasWidth; right = left + rect.size.width/atlasWidth; top = rect.origin.y/atlasHeight; bottom = top + rect.size.height/atlasHeight; // // |/|/|/| // CGSize capTexCoordsSize=CGSizeMake(capSizeInPixels.width/atlasWidth, capSizeInPixels.height/atlasHeight); // From left to right //Top band // Left vertexData[0].texCoords=(ccTex2F){left,top}; vertexData[1].texCoords=(ccTex2F){left,top+capTexCoordsSize.height}; vertexData[2].texCoords=(ccTex2F){left+capTexCoordsSize.width,top}; vertexData[3].texCoords=(ccTex2F){left+capTexCoordsSize.width,top+capTexCoordsSize.height}; // Center vertexData[4].texCoords=(ccTex2F){right-capTexCoordsSize.width,top}; vertexData[5].texCoords=(ccTex2F){right-capTexCoordsSize.width,top+capTexCoordsSize.height}; // Right vertexData[6].texCoords=(ccTex2F){right,top}; vertexData[7].texCoords=(ccTex2F){right,top+capTexCoordsSize.height}; //Center band // Left vertexData[8].texCoords=(ccTex2F){left,bottom-capTexCoordsSize.height}; vertexData[9].texCoords=(ccTex2F){left,top+capTexCoordsSize.height}; vertexData[10].texCoords=(ccTex2F){left+capTexCoordsSize.width,bottom-capTexCoordsSize.height}; vertexData[11].texCoords=(ccTex2F){left+capTexCoordsSize.width,top+capTexCoordsSize.height}; // Center vertexData[12].texCoords=(ccTex2F){right-capTexCoordsSize.width,bottom-capTexCoordsSize.height}; vertexData[13].texCoords=(ccTex2F){right-capTexCoordsSize.width,top+capTexCoordsSize.height}; // Right vertexData[14].texCoords=(ccTex2F){right,bottom-capTexCoordsSize.height}; vertexData[15].texCoords=(ccTex2F){right,top+capTexCoordsSize.height}; //Bottom band //Left vertexData[16].texCoords=(ccTex2F){left,bottom}; vertexData[17].texCoords=(ccTex2F){left,bottom-capTexCoordsSize.height}; vertexData[18].texCoords=(ccTex2F){left+capTexCoordsSize.width,bottom}; vertexData[19].texCoords=(ccTex2F){left+capTexCoordsSize.width,bottom-capTexCoordsSize.height}; // Center vertexData[20].texCoords=(ccTex2F){right-capTexCoordsSize.width,bottom}; vertexData[21].texCoords=(ccTex2F){right-capTexCoordsSize.width,bottom-capTexCoordsSize.height}; // Right vertexData[22].texCoords=(ccTex2F){right,bottom}; vertexData[23].texCoords=(ccTex2F){right,bottom-capTexCoordsSize.height}; } -(void) updateVertices { float left=0; //-spriteSizeInPixels.width*0.5f; float right=left+contentSize_.width; float bottom=0; //-spriteSizeInPixels.height*0.5f; float top=bottom+contentSize_.height; float holeLeft=holeRect.origin.x*CC_CONTENT_SCALE_FACTOR(); float holeRight=holeLeft+holeRect.size.width*CC_CONTENT_SCALE_FACTOR(); float holeBottom=holeRect.origin.y*CC_CONTENT_SCALE_FACTOR(); float holeTop=holeBottom+holeRect.size.height*CC_CONTENT_SCALE_FACTOR(); // // |/|/|/| // // From left to right //Top band // Left vertexData[0].vertices=(ccVertex2F){left,top}; vertexData[1].vertices=(ccVertex2F){left,holeTop}; vertexData[2].vertices=(ccVertex2F){holeLeft,top}; vertexData[3].vertices=(ccVertex2F){holeLeft,holeTop}; // Center vertexData[4].vertices=(ccVertex2F){holeRight,top}; vertexData[5].vertices=(ccVertex2F){holeRight,holeTop}; // Right vertexData[6].vertices=(ccVertex2F){right,top}; vertexData[7].vertices=(ccVertex2F){right,holeTop}; //Center band // Left vertexData[8].vertices=(ccVertex2F){left,holeBottom}; vertexData[9].vertices=(ccVertex2F){left,holeTop}; vertexData[10].vertices=(ccVertex2F){holeLeft,holeBottom}; vertexData[11].vertices=(ccVertex2F){holeLeft,holeTop}; // Center vertexData[12].vertices=(ccVertex2F){holeRight,holeBottom}; vertexData[13].vertices=(ccVertex2F){holeRight,holeTop}; // Right vertexData[14].vertices=(ccVertex2F){right,holeBottom}; vertexData[15].vertices=(ccVertex2F){right,holeTop}; //Bottom band //Left vertexData[16].vertices=(ccVertex2F){left,bottom}; vertexData[17].vertices=(ccVertex2F){left,holeBottom}; vertexData[18].vertices=(ccVertex2F){holeLeft,bottom}; vertexData[19].vertices=(ccVertex2F){holeLeft,holeBottom}; // Center vertexData[20].vertices=(ccVertex2F){holeRight,bottom}; vertexData[21].vertices=(ccVertex2F){holeRight,holeBottom}; // Right vertexData[22].vertices=(ccVertex2F){right,bottom}; vertexData[23].vertices=(ccVertex2F){right,holeBottom}; } -(void) setHole:(CGRect)r inRect:(CGRect)totalSurface { holeRect=r; self.contentSize=totalSurface.size; holeRect.origin=ccpSub(holeRect.origin,totalSurface.origin); CGPoint holeCenter=ccp(holeRect.origin.x+holeRect.size.width*0.5f,holeRect.origin.y+holeRect.size.height*0.5f); self.anchorPoint=ccp(holeCenter.x/contentSize_.width,holeCenter.y/contentSize_.height); //[self updateTextureCoords:rectInPixels_]; [self updateVertices]; [self updateColor]; } -(void) draw { BOOL newBlend = NO; if( blendFunc_.src != CC_BLEND_SRC || blendFunc_.dst != CC_BLEND_DST ) { newBlend = YES; glBlendFunc( blendFunc_.src, blendFunc_.dst ); } glBindTexture(GL_TEXTURE_2D, [texture_ name]); glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, sizeof(ccV2F_C4F_T2F), &vertexData[0].vertices); glVertexAttribPointer(kCCVertexAttrib_TexCoords, 2, GL_FLOAT, GL_FALSE, sizeof(ccV2F_C4F_T2F), &vertexData[0].texCoords); glVertexAttribPointer(kCCVertexAttrib_Color, 4, GL_FLOAT, GL_FALSE, sizeof(ccV2F_C4F_T2F), &vertexData[0].colors); glDrawArrays(GL_TRIANGLE_STRIP, 0, 8); glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, sizeof(ccV2F_C4F_T2F), &vertexData[8].vertices); glVertexAttribPointer(kCCVertexAttrib_TexCoords, 2, GL_FLOAT, GL_FALSE, sizeof(ccV2F_C4F_T2F), &vertexData[8].texCoords); glVertexAttribPointer(kCCVertexAttrib_Color, 4, GL_FLOAT, GL_FALSE, sizeof(ccV2F_C4F_T2F), &vertexData[8].colors); glDrawArrays(GL_TRIANGLE_STRIP, 0, 8); glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, sizeof(ccV2F_C4F_T2F), &vertexData[16].vertices); glVertexAttribPointer(kCCVertexAttrib_TexCoords, 2, GL_FLOAT, GL_FALSE, sizeof(ccV2F_C4F_T2F), &vertexData[16].texCoords); glVertexAttribPointer(kCCVertexAttrib_Color, 4, GL_FLOAT, GL_FALSE, sizeof(ccV2F_C4F_T2F), &vertexData[16].colors); glDrawArrays(GL_TRIANGLE_STRIP, 0, 8); if( newBlend ) glBlendFunc(CC_BLEND_SRC, CC_BLEND_DST); } -(void)setTextureRectInPixels:(CGRect)rect untrimmedSize:(CGSize)untrimmedSize { rectInPixels_ = rect; rect_ = CC_RECT_PIXELS_TO_POINTS( rect ); //[self setContentSizeInPixels:untrimmedSize]; [self updateTextureCoords:rectInPixels_]; } -(void)setTextureRect:(CGRect)rect { CGRect rectInPixels = CC_RECT_POINTS_TO_PIXELS( rect ); [self setTextureRectInPixels:rectInPixels untrimmedSize:rectInPixels.size]; } // // RGBA protocol // #pragma mark CCSpriteHole - RGBA protocol -(GLubyte) opacity { return opacity_; } -(void) setOpacity:(GLubyte) anOpacity { opacity_ = anOpacity; // special opacity for premultiplied textures if( opacityModifyRGB_ ) [self setColor: (opacityModifyRGB_ ? colorUnmodified_ : color_ )]; [self updateColor]; } - (ccColor3B) color { if(opacityModifyRGB_){ return colorUnmodified_; } return color_; } -(void) setColor:(ccColor3B)color3 { color_ = colorUnmodified_ = color3; if( opacityModifyRGB_ ){ color_.r = color3.r * opacity_/255; color_.g = color3.g * opacity_/255; color_.b = color3.b * opacity_/255; } [self updateColor]; } -(void) setOpacityModifyRGB:(BOOL)modify { ccColor3B oldColor = self.color; opacityModifyRGB_ = modify; self.color = oldColor; } -(BOOL) doesOpacityModifyRGB { return opacityModifyRGB_; } #pragma mark CCSpriteHole - CocosNodeTexture protocol -(void) updateBlendFunc { if( !texture_ || ! [texture_ hasPremultipliedAlpha] ) { blendFunc_.src = GL_SRC_ALPHA; blendFunc_.dst = GL_ONE_MINUS_SRC_ALPHA; [self setOpacityModifyRGB:NO]; } else { blendFunc_.src = CC_BLEND_SRC; blendFunc_.dst = CC_BLEND_DST; [self setOpacityModifyRGB:YES]; } } -(void) setTexture:(CCTexture2D*)texture { // accept texture==nil as argument NSAssert( !texture || [texture isKindOfClass:[CCTexture2D class]], @"setTexture expects a CCTexture2D. Invalid argument"); texture_ = texture; [self updateBlendFunc]; } -(CCTexture2D*) texture { return texture_; } @end but now positioning and scaling seem to not work? and it starts in the wrong position... but changing the opacity still works. so i was wondering if anyone can see why my 2.0 version is not working? or if maybe there is a better way to do a sprite hole with cocos2d/opengl 2.0? shaders? thanks

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• How to deal with a CEO making all technical decision but with little technical knowledge ?

  - by anonymous

  Hi, Question posted anonymously for obvious reasons. I am working in a company with a dev group of 5-6 developers, and I am in a situation which I have a hard time dealing with. Every technical choice (language, framework, database, database scheme, configuration scheme, etc...) is decided by the CEO, often without much rationale. It is very hard to modify those choices, and his main argument consists in "I don't like this", even though we propose several alternative with detailed pros/cons. He will also decide to rewrite from scratch our core product without giving a reason why, and he never participates to dev meetings because he considers it makes things slower... I am already looking at alternative job opportunities, but I was wondering if there anything we (the developers) could do to improve the situation. Two examples which shocked me: he will ask us to implement something akin to configuration management, but he reject any existing framework because they are not written in the language he likes (even though the implementation language is irrelevant). He also expects us to be able to write those systems in a couple of days, "because it is very simple". he keeps rewriting from scratch on his own our core product because the current codebase is too bad (codebase whose design was his). We are at our third rewrite in one year, each rewrite worse than the previous one. Things I have tried so far is doing elaborate benchmarks on our product (he keeps complaining that our software is too slow, and justifies rewrites to make it faster), implement solutions with existing products as working proof instead of just making pros/cons charts, etc... But still 90 % of those efforts go to the trashbox (never with any kind of rationale behind he does not like it, again), and often get reprimanded because I don't do exactly as he wants (not realizing that what he wants is impossible).

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• Lost WiFi after 12.10 upgrade

  - by Steven Guillory

  I received my new Dell Vostro 2420 last week, and just got around to upgrading from 11.10 to 12.10. Unfortunately, like many others (after researching the issue), I no longer have WiFi. I have tried every sudo command given that worked for others, and still can't get my wireless to function. I am new to Linux, so any and all help is appreciated. Thanks in advance! Edit: I can connect via ethernet, just not via wifi. As a matter of fact, when I use Fn + F2 to turn on wifi, only my bluetooth comes on. lspci 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 00:16.0 Communication controller: Intel Corporation Panther Point MEI Controller #1 (rev 04) 00:1a.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 1 (rev c4) 00:1c.3 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 4 (rev c4) 00:1c.5 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 6 (rev c4) 00:1d.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation Panther Point LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation Panther Point 6 port SATA Controller [AHCI mode] (rev 04) 00:1f.3 SMBus: Intel Corporation Panther Point SMBus Controller (rev 04) 07:00.0 Network controller: Broadcom Corporation Device 4365 (rev 01) 09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 07) This is what I am getting... dpkg: error: --install needs at least one package archive file argument Type dpkg --help for help about installing and deinstalling packages [*]; Use dselect or aptitude for user-friendly package management; Type dpkg -Dhelp for a list of dpkg debug flag values; Type dpkg --force-help for a list of forcing options; Type dpkg-deb --help for help about manipulating *.deb files; Options marked [*] produce a lot of output - pipe it through less or more !

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• for an ajax heavy web application which would be better SOAP or REST?

  - by coder

  I'm building an ajax heavy application (client-side strictly html/css/js) which will be getting all the data and using server business logic via webservices. I know REST seems to be the hot topic but I can't find any good arguments. The main argument seems to be its "light-weight". My impression so far is that wsdl/soap based services are more expressive and allow for more a more complex transfer of data. It appears that soap would be more useful in the application I'm building where the only code consuming the services will be the js downloaded in the client browser. REST on the other hand seems to have a smaller entry barrier and so can be more useful for services like twitter in allowing other developers to consume these services easily. Also, REST seems to Te better suited for simple data transfers. So in summary SOAP is useful for complex data transfer and REST is useful in simple data transfer. I'm currently under the impression that using SOAP would be best due to the complexity of the messages but perhaps there's other factors. What are your thoughts on the pros/cons of soap/rest for a heavy ajax web app?

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• wireless is disabled by hardware lenovo 3000g430

  - by sudheer

  sir i have problem with my wifi switch sir please tell me solution for my problem (wifi is disabled by hardware). output of sudo lshw -C network is sudo] password for sudheer: *-network DISABLED description: Wireless interface product: BCM4312 802.11b/g LP-PHY vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:06:00.0 logical name: eth2 version: 01 serial: 00:21:00:72:3a:93 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=wl0 driverversion=5.100.82.38 latency=0 multicast=yes wireless=IEEE 802.11bg resources: irq:19 memory:f4700000-f4703fff *-network description: Ethernet interface product: NetLink BCM5906M Fast Ethernet PCI Express vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:07:00.0 logical name: eth0 version: 02 serial: 00:1e:68:ad:24:0b size: 100Mbit/s capacity: 100Mbit/s width: 64 bits clock: 33MHz capabilities: pm vpd msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.121 duplex=full firmware=sb v3.04 ip=172.16.52.79 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s resources: irq:47 memory:f4600000-f460ffff output of iwconfig is lo no wireless extensions. eth2 IEEE 802.11 Access Point: Not-Associated Link Quality:5 Signal level:0 Noise level:0 Rx invalid nwid:0 invalid crypt:0 invalid misc:0 eth0 no wireless extensions. sudheer@sudheer:~$ sudo iwlistscanning sudo: iwlistscanning: command not found ***sudheer@sudheer:~$ sudo iwlist scanning*** lo Interface doesn't support scanning. eth2 Failed to read scan data : Invalid argument eth0 Interface doesn't support scanning.

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• CodeStock 2012 Review: Eric Landes( @ericlandes ) - Automated Tests in to automated Builds! How to put the right type of automated tests in to the right automated builds.

  Automated Tests in to automated Builds! How to put the right type of automated tests in to the right automated builds.Speaker: Eric LandesTwitter: @ericlandesBlog: http://ericlandes.com/ This was one of the first sessions I attended during CodeStock 2012. Eric’s talk focused mostly on unit testing, and that the lack of proper unit testing can be compared to stealing from an employer. His point was that if you’re not doing proper unit testing then all of the time wasted on fixing issues that could have been detected with unit tests is like stealing money from employer. He makes the assumption that that time spent on fixing these issues could have been better spent developing new features that drive the business. To a point I can agree with Eric’s argument regarding unit testing and stealing from a company’s perspective. I can see how he relates resources being shifted from new development to bug fixes as stealing based on the fact that the resources used to fix bugs are directly taken from other projects. He also states that Boring/Redundant and Build/Test tasks should be automated because it reduces the changes of errors and frees up developer to do what they do best, DEVELOP! When he refers to testing, he breaks testing down in to four distinct types. Unit Test Acceptance Test (This also includes Integration Tests) Performance Test UI Test With this he also recommends that developers should not go buck wild striving for 100% code coverage because some test my not provide a great return on investment. In his experience he recommends that 70% test coverage was a very acceptable rate.

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• Using template questions in a technical interview

  - by Desolate Planet

  I've recently been in an argument with a colleague about technical questions in interviews. As a graduate, I went round lots of companies and noticed they used the same questions. An example is "Can you write a function that determines if a number is prime or not?", 4 years later, I find that particular question is quite common even for a junior developer. I might not be looking at this the correct way, but shouldn't software houses be intelligent enough to think up their own interview questions? I've been to about 16 interviews as a graduate and the same questions came up in about 75% of them. This leads me to believe that many companies are lazy and simply Google: 'Template questions for interviewing software developers' and I look down on that. Question: Is it better to use a set of questions off some template or should software houses strive to be more original and come up with their own interview material? From my point of view, if I failed an interview and went off and looked for good answers to the questions I messed up on, I could fly through the next interview if the questions are the same.

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• Valid reason for employer to breach freelance contract

  - by Costas

  Please don't close this as offtopic. According to the FAQ I can post programming related questions. I was working on a project and when it was half way completed (1 weeks work), the employer backs out and refuses to pay me. Shortly before this he was being very rude. He was having problems configuring the server and he told me it was my fault and that I had to fix it. After I spent several hours trying to figure out the problem, it turned out to be his fault. After this when I put the code on the server. He found 1 bug that I had missed. He freaked out, accused me of being a bad programmer and told me that the code was shit and that he couldn't use it. He said that if there is a bug in the code, that means the code is bad and he can't use it. He would have to throw the code away and hire someone else. His kept reiterating his argument: "why should I pay for code that I can't use". And I kept telling him the code was fine and urged him to have another programmer give him a second opinion. But he would have none of that. He said he would compensate me for my troubles by paying me 250$. Then he changes his mind and lowers that to 200$. Then a third time he changes his mind and says he doesn't want to compensate me at all. I'm left frustrated because besides being rude, he did not at any time tell me he was unhappy with the work that I was doing. So my question is; Is the above a valid reason to back out of a verbal contract in your opinion?

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• Does Google Analytics exclude Campaign traffic from Facebook in the Social reports?

  - by user1612223

  For a while we have used campaign tags when putting posts on Facebook so that we can run campaign reports in Google analytics on those links. However it appears that traffic from those links are being excluded in Google's Social reports. For example between 7/20 and 8/19 I'm seeing 123 Visits where Facebook is the source in my Campaigns report, but only 29 Visits where Facebook is the source in my Social Sources report. Main questions: Does Google exclude campaign traffic from it's social reports? If it does, is there any way to reconcile that so that the traffic shows up in both reports? If it doesn't, what could be causing the vast discrepancy? One observer noted that we are setting the Medium to "Post" when passing the campaign parameters, and that Google may only allow "Referral" traffic in it's social reports (Just speculation). In that case we could potentially change the Medium to "Referral", but that would undermine some of our strategy in being able to set different mediums. I have also considered that maybe the campaign traffic came to the site several times, and the social report may count the same user as less visits, however over 70% of the Facebook campaign traffic is new traffic, so at a minimum there would need to be over 85 Visits on the Social side for that argument to be valid. I've done several searches for any information on this topic, and haven't run across much of anything. I did post the same question on Google's Product Forum and have not gotten a response. The title of that question was 'Facebook Campaign Traffic Not Showing in Social Reports'. The inability to pass campaign data on Facebook posts would make evaluating the performance of those specific posts very difficult, so I'm hoping there is a solution to this.

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• I receive the error 'grub-install /dev/sda failed' while attempting to install Ubuntu as the computer's only OS.

  - by Liath

  I am attempting to install Ubuntu on a box which was previously running Windows 7. I have also experienced the dreaded "Unable to install GRUB" error. I am not attempting to dual boot. I have previously run a Windows boot disk and removed all existing partitions. If I run the Ubuntu 12.04 install CD and click install after the config screens, I get the error Executing 'grub-install /dev/sda' failed. This is a fatal error. (It is the same error as this question: Unable to install GRUB) All the questions I've read while looking for a solution are related to dual boot. I'm not interested in dual boot, I'm after a clean out the box Ubuntu install. How can I achieve this? (For my sanity, please use very simple instructions when responding. I don't claim to have any talent either for linux or as a sysadmin) Additional details copied from comments dated: 2012-05-29 ~15:19Z After booting from the CD, clicking Try Ubuntu, and then sudo fdisk /dev/sda I get fdisk: unable to seek on /dev/sda: Invalid argument sudo fdisk /dev/sdb gives Device contains neither a valid DOS partiion table, nor Sun, SGI or OSF disklabel. Building a new DOS disklabel with disk identifier 0x15228d1d. Changes will remain in memory only until you decide to write them. After that of course, the previous content won't be recoverable. Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite). Command (m for help): I should add the Live CD desktop is graphically bad. I've got missing parts of programs and the terminal occasionally reflects to the bottom of the screen. But I can't imagine this is related.

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• questions on a particular algorithm

  - by paul smith

  Upon searching for a fast primr algorithm, I stumbled upon this: public static boolean isP(long n) { if (n==2 || n==3) return true; if ((n&0x1)==0 || n%3==0 || n<2) return false; long root=(long)Math.sqrt(n)+1L; // we check just numbers of the form 6*k+1 and 6*k-1 for (long k=6;k<=root;k+=6) { if (n%(k-1)==0) return false; if (n%(k+1)==0) return false; } return true; } My questions are: Why is long being used everywhere instead of int? Because with a long type the argument could be much larger than Integer.MAX thus making the method more flexible? In the second 'if', is n&0x1 the same as n%2? If so why didn't the author just use n%2? To me it's more readable. The line that sets the 'root' variable, why add the 1L? What is the run-time complexity? Is it O(sqrt(n/6)) or O(sqrt(n)/6)? Or would we just say O(n)?

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• Zufriedene Kunden sind die beste Werbung: Anwenderberichte für Partner

  - by A&C Redaktion

  Ein großes, erfolgreich abgeschlossenes Kundenprojekt ist ein schlagendes Argument, um sich als zuverlässiges und engagiertes Unternehmen zu profilieren. Frei nach dem Motto: „Tue Gutes und rede darüber“. Deshalb bieten wir spezialisierten Partnern die Möglichkeit, professionelle Anwenderberichte über ihre erfolgreichen Oracle Projekte erstellen zu lassen. Ein Beispiel: Gerade hat unser Platinum Partner HUNKLER ein Datenbank-Projekt für die Kliniken Schmieder abgeschlossen. Nachdem die IT-Systeme der Kliniken aufgrund gestiegener Zugriffszahlen an ihre Grenzen stießen, hat HUNKLER mit der Oracle Database Appliance (ODA) eine zukunftsfähige Datenbank-Lösung installiert, die den hohen Datenschutzansprüchen und der enormen Auslastung auch langfristig gerecht wird. Details zum genauen Projektverlauf, den spezifischen Anforderungen im Klinikalltag und der Zusammenarbeit zwischen dem Klinikum, HUNKLER und Oracle finden Sie hier im Anwenderbericht Kliniken Schmieder. Die Möglichkeit, sich und ihre Arbeit gewinnbringend zu präsentieren, können alle spezialisierten Partner nutzen, die ein repräsentatives Oracle Projekt abgeschlossen haben. Erfahrene Fachjournalisten interviewen sowohl Partner als auch Endkunde und erstellen einen ausführlichen, ansprechend aufbereiteten Bericht. Die Veröffentlichung erfolgt über verschiedene Marketing-Kanäle. Natürlich können die Partner die Anwenderberichte auch für die eigenen Marketingzwecke nutzen, z. B. für Veranstaltungen. Haben Sie Interesse? Dann wenden Sie sich an Frau Marion Aschenbrenner. Wir benötigen von Ihnen einige Eckdaten wie Kundenname, Ansprechpartner und eingesetzte Oracle Produkte, eine Beschreibung des Projektes in 3-4 Sätzen und Ihren Ansprechpartner im Haus. Und dann:

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• Zufriedene Kunden sind die beste Werbung: Anwenderberichte für Partner

  - by A&C Redaktion

  Ein großes, erfolgreich abgeschlossenes Kundenprojekt ist ein schlagendes Argument, um sich als zuverlässiges und engagiertes Unternehmen zu profilieren. Frei nach dem Motto: „Tue Gutes und rede darüber“. Deshalb bieten wir spezialisierten Partnern die Möglichkeit, professionelle Anwenderberichte über ihre erfolgreichen Oracle Projekte erstellen zu lassen. Ein Beispiel: Gerade hat unser Platinum Partner HUNKLER ein Datenbank-Projekt für die Kliniken Schmieder abgeschlossen. Nachdem die IT-Systeme der Kliniken aufgrund gestiegener Zugriffszahlen an ihre Grenzen stießen, hat HUNKLER mit der Oracle Database Appliance (ODA) eine zukunftsfähige Datenbank-Lösung installiert, die den hohen Datenschutzansprüchen und der enormen Auslastung auch langfristig gerecht wird. Details zum genauen Projektverlauf, den spezifischen Anforderungen im Klinikalltag und der Zusammenarbeit zwischen dem Klinikum, HUNKLER und Oracle finden Sie hier im Anwenderbericht Kliniken Schmieder. Die Möglichkeit, sich und ihre Arbeit gewinnbringend zu präsentieren, können alle spezialisierten Partner nutzen, die ein repräsentatives Oracle Projekt abgeschlossen haben. Erfahrene Fachjournalisten interviewen sowohl Partner als auch Endkunde und erstellen einen ausführlichen, ansprechend aufbereiteten Bericht. Die Veröffentlichung erfolgt über verschiedene Marketing-Kanäle. Natürlich können die Partner die Anwenderberichte auch für die eigenen Marketingzwecke nutzen, z. B. für Veranstaltungen. Haben Sie Interesse? Dann wenden Sie sich an Frau Marion Aschenbrenner. Wir benötigen von Ihnen einige Eckdaten wie Kundenname, Ansprechpartner und eingesetzte Oracle Produkte, eine Beschreibung des Projektes in 3-4 Sätzen und Ihren Ansprechpartner im Haus. Und dann: Lassen Sie Ihre gute Arbeit für sich sprechen!

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