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| | Singleton - Wikipedia, the free encyclopedia |
 | | In computer programming, a singleton is a common design pattern. | | | In variable-width encoding schemes for computer character sets, a singleton is a character encoded with one unit, as opposed to characters encoded with multiple-unit sequences. | | | A singleton is also a variable that is only used once in a program, usually indicating a programming mistake. |
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http://en.wikipedia.org/wiki/Singleton
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| | Singleton pattern - Wikipedia, the free encyclopedia |
| | In software engineering, the singleton design pattern is designed to restrict instantiation of a class to one (or a few) objects. | | | A possible C++ solution (also known as Meyers singleton) where the singleton is a static local object (note: this solution is not thread-safe and is designed to give an idea of how singletons work rather than a solution usable in large-scale software project). | | | In a prototype-based programming language, where objects but not classes are used, a "singleton" simply refers to an object without copies or that is not used as the prototype for any other object. |
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http://en.wikipedia.org/wiki/Singleton_pattern
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| | When is a Singleton not a Singleton? |
| | The Singleton should not be seen as way to implement global variables in the Java programming language; rather, along the lines of the factory design patterns, the Singleton lets you encapsulate and control the creation process by making sure that certain prerequisites are fulfilled or by creating the object lazily on demand. | | | The Singleton's purpose is to control object creation, limiting the number to one but allowing the flexibility to create more objects if the situation changes. | | | One of the strengths of the Singleton design pattern, as opposed to static methods, is that if you change your mind and want more than one, the Singleton class can be easily altered. |
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http://java.sun.com/developer/technicalArticles/Programming/singletons
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| | GameDev.net - The One: A Singleton Discussion |
| | The singleton is a recurring pattern used by programmers. | | | The singleton pattern is easy to understand but implementation-wise in C++ it has lots of subtle problems. | | | In that case, the DCLP can be used with the sync object to protect the creation code of the singleton. |
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http://www.gamedev.net/reference/articles/article1825.asp
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| | Implementing Design Patterns in C# - Singleton Pattern |
| | First case Singleton can be used in a data repository or data collection where creation of more than one object can be resource wastage. | | | Code is a string value, it is used to demonstrate that the object is shared b/w references and change made to this field through one reference can be realized through other reference. | | | Property Reference returns the number of reference referencing our shared object while Code property can be used to set/get the code string of shared object. |
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http://www.c-sharpcorner.com/Code/2003/Jan/SingletonPattern.asp
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| | Singleton |
| | The answer to the global data question is not, "Make it a Singleton." The answer is, "Why in the hell are you using global data?" Changing the name doesn't change the problem. | | | Facade objects are often Singletons because only one Facade object is required. | | | "Singleton is not going to solve global data problems. |
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http://home.earthlink.net/~huston2/dp/singleton.html
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| | Gem: An Automatic Singleton Utility |
| | A singleton is an object that only has one instance in a system at any time. | | | Singletons can solve this problem because they are treated as global objects. | | | Some common examples of singletons in games are managers for texture maps, files, or the user interface. |
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http://www.drizzle.com/~scottb/publish/gpgems1_singleton.htm
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| | Exploring the Singleton Design Pattern (Building Distributed Applications) |
| | In most cases, it is very easy to develop a singleton without a parent class, and adding sub-classing functionality adds a new level of complexity that is generally not needed anyway. | | | In each preceding code example, the original implementation for a singleton has undergone changes over time to address issues that have been discovered with each new implementation of the pattern. | | | The Singleton pattern was formally defined in the classic reference, Design Patterns: Elements of Reusable Software by Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides (also known as the Gang of Four, or GoF). |
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http://msdn.microsoft.com/library/en-us/dnbda/html/singletondespatt.asp?frame=true&_r=1
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| | Singleton - Ogre Wiki |
| | IIRC, singletons are a design pattern (a way of creating classes that fits in most projects). | | | Singleton - A class of which only one instance can exist at a given time. | | | There are a lot of different implementations but the point is always the same: having ONLY ONE instance of a class. |
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http://www.ogre3d.org/wiki/index.php/Singleton
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| | Singleton Urquhart Legal Counsel |
| | Singleton Urquhart's collegial environment and team approach is evident in our experienced staff, many of whom have been with our firm for more than ten years. | | | Singleton Urquhart offers a professional and challenging work environment, with a competitive compensation and benefits package. | | | Students are provided with an office and each student has their own computer, equipped with access to Quicklaw, the Internet and email. |
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http://www.singleton.com/careers.html
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| | design:singleton_pattern [phpPatterns] |
| | The singleton pattern applies to the situation where you need a single, global instance of a class. | | | The easiest way to understand a singleton pattern is by example. | | | But first we have to overcome a small problem in PHP - the lack of static class variables (something that’s coming in the Zend 2 engine. |
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http://www.phppatterns.com/docs/design/singleton_pattern
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| | jGuru: What is an example of a design pattern? |
| | because the constructor of singleton class will be declared private,an instance cannot be created outside of the class ie an instance cannot be created by the developer explicitly. | | | A complete discussion of even a small pattern is beyond the scope of a simple FAQ entry, but it is possible to get the idea by examining an abbreviated discussion of one of the simplest and most easily understood patterns. | | | Can we use the Singleton method to prevent the creation of multiple objects when we don't use the getInstance() method and use...= new Singleton() instead. |
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http://www.jguru.com/faq/view.jsp?EID=3434
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| | Simply Singleton |
| | The singleton implemented in Example 1 is easy to understand. | | | The other solution is to put your singleton class in an explicit package, so classes in other packages (including the default package) cannot instantiate singleton instances. | | | As you can see from the preceding discussion, although the Singleton pattern is one of the simplest design patterns, implementing it in Java is anything but simple. |
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http://www.javaworld.com/javaworld/jw-04-2003/jw-0425-designpatterns.html
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| | Implementing the Singleton Pattern in C# |
| | Implementing the Singleton Pattern in C# Implementing the Singleton Pattern in C# The singleton pattern is one of the best-known patterns in software engineering. | | | There are various different ways of implementing the singleton pattern in C#. | | | The thread takes out a lock on a shared object, and then checks whether or not the instance has been created before creating the instance. |
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http://www.yoda.arachsys.com/csharp/singleton.html
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| | [No title] |
| | The singleton pattern applies to the many situations in which there needs to be a single instance of a class, a single object. | | | This pattern is easily extensible to allow a controlled number of "singleton" objects to be created. | | | It is often left up to the programmer to insure that the An important consideration in implementing this pattern is how to make this single instance easily accessible by many other objects. |
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http://www.csc.calpoly.edu/~dbutler/tutorials/winter96/patterns/tutorial.html
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| | GameDev.net - The Singleton Class Cluster |
| | In this article I will first suggest an optimal implementation of the standard Singleton design pattern, and then proceed to the reason for this article's title, the Singleton Class Cluster, which is an attempt to combine the 'Singleton' and 'Class Cluster' design patterns to allow polymorphism in Singletons. | | | And there is, of course, no reason why you couldn't load the renderers dynamically form DLLs (shared objects, frameworks, etc.), and then present a dialog to the user to ask which one they would prefer. | | | What is more, if for instance the user is running the DirectX renderer, and they suddenly decide they prefer OpenGL, all the engine has to do is destroy the singleton, and then create it again, with the other renderer. |
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http://www.gamedev.net/reference/articles/article2260.asp
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| | D Melodic Minor Accidental : Singleton Pattern |
| | If you want to, you can create a private static lock object that you have to acquire before you even test if the sharedOnly field is null or not (and retain it until you've finished assigning). | | | Neil: there are also issues with the double null checking pattern with the.net memory model. | | | IIRC, the pattern I'm using the Init() method is the double-check locking pattern. |
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http://blogs.msdn.com/theoy/archive/2004/05/20/136528.aspx
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| | Implementing the Singleton Design Pattern |
| | I will show how to implement the singleton pattern in C++ and explain how you can optimize its design for single-threaded applications. | | | The Singleton class hides the operation that creates the instance behind a static member function. | | | Using a global object ensures that the instance is easily accessible but it doesn't keep you from instantiating multiple objects—you can still create a local instance of the same class in addition to the global one. |
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http://www.inquiry.com/techtips/cpp_pro/10min/10min0200.asp
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| | [No title] |
| | The Singleton pattern places responsibility for object *creation* squarely in the Singleton class. | | | The only drawback I could see here is that it makes it hard to extend the Singleton through subclassing, since Instance will always create an object of type Singleton. | | | If your Singleton objects ever need to do such cleanup, they probably have to wait until just before the program terminates. |
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http://www.research.ibm.com/designpatterns/pubs/ph-jun96.txt
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| | ONDotnet.com -- VB.NET OOP Part 3: The Singleton Pattern |
| | A class that implements the Singleton pattern is called a Singleton class. | | | This pattern is effective for limiting the maximum number of instances of a class to exactly one. | | | In this case, if more than one object needs to use an instance of the Singleton class, those objects share the same Singleton class instance. |
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http://www.ondotnet.com/pub/a/dotnet/2002/11/11/singleton.html
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| | Design Patterns in Python |
| | Singleton can be seen as a more elegant solution to global variable because actual data is hidden behind Singleton class interface. | | | One advantage of this explicit registration approach is the option to implement as sophisticated a registry database as needed. | | | In Singleton our main focus was to maintain the features of the pattern as described in G |
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http://www.python.org/workshops/1997-10/proceedings/savikko.html
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| | Double-checked locking and the Singleton pattern |
| | The Singleton creation pattern is a common programming idiom. | | | In an effort to avoid costly synchronization in singletons, programmers, quite ingeniously, invented the double-checked locking idiom. | | | To understand where the double-checked locking idiom originated, you must understand the common singleton creation idiom, which is illustrated in Listing 1: |
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http://www-128.ibm.com/developerworks/java/library/j-dcl.html?loc=dwmain
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| | Singleton |
| | The Qusp would employ all the techniques designed to shield the latest generation of quantum computers from entanglement with their environment, but it would use them to a very different end. | | | Among other things, this meant that there was no compelling reason to believe that software running on a classical computer could not be conscious. | | | Back in my office, I summoned up a schematic of the device I called the Qusp: the quantum singleton processor. |
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http://gregegan.customer.netspace.net.au/MISC/SINGLETON/Singleton.html
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| | PatternStories: Singleton Pattern |
| | Though that doesn't help in understanding the pattern itself JasonGorman | | | -- [DavidMcReynolds] ---- Though that doesn't help in understanding the pattern itself [JasonGorman] ---- Here is a thread safe lazy instantiated Singleton class | | | I have seen too many instances of a straight port of the GoF C++ code to Java and would say that any discussion of the Singleton pattern in Java must at least provide a threading disclaimer. |
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http://wiki.cs.uiuc.edu/PatternStories/SingletonPattern
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| | Morning Edition: George Singleton |
| | Listen to a profile of George Singleton by NPR's David Molpus. | | | Singleton writes about people who still work with their hands. | | | Singleton, who is in his early 40s, has been living in rural South Carolina since early childhood. |
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http://www.npr.org/programs/morning/features/2001/aug/southern/010816.southern.singleton.html
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| | Singleton Design Pattern in C# and VB.NET |
| | code demonstrates the Singleton pattern as a LoadBalancing object. | | | code demonstrates the Singleton pattern which assures only a single instance (the singleton) of the class can be created. | | | Only a single instance (the singleton) of the class can be created because servers may dynamically come on- or off-line and every request must go throught the one object that has knowledge about the state of the (web) farm. |
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http://www.dofactory.com/Patterns/PatternSingleton.aspx
(192 words)
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| | The Evolution of Dean Singleton |
| | "Kay Graham in 1980 offered me the job to come run it," Singleton says of the Trenton Times. | | | In 1976, when Singleton moved to Westfield to publish the Evening News, he asked David Burgin, then editing Allbritton's paper in Paterson, to come to Massachusetts as the temporary editor. | | | In his seven months on the job, Moore has moved, with Singleton's backing, to strengthen the paper. |
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http://www.cjr.org/issues/2003/2/dean-sherman.asp
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| | AskMen.com - Sasha Singleton |
| | Everything I wear can be portrayed as sexy!" | | | At only 23 years of age, Sasha Singleton has already made quite a career for herself as a model. | | | And she should, because she has the look (not to mention the bod) to pose in any publication. |
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http://www.askmen.com/women/models_60/80_sasha_singleton.html
(270 words)
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| | John Singleton (I) |
| | You may report errors and omissions on this page to the IMDb database managers. | | | Discuss this person with other users on IMDb message board for John Singleton (I) | | | John Singleton (I) has 1 in-development credit available on IMDbPro.com. |
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http://www.imdb.com/name/nm0005436
(354 words)
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| | Singleton, TAMU Chemistry |
| | He was promoted to Associate Professor in 1993 and Professor in 1997. | | | "A Conjunctive Diquinane Synthesis Using a Free-Radical Catalyzed Intramolecular [3 + 2] Methylenecyclopentane Annulation," C. Huval and D. Singleton, Tetrahedron Lett. | | | According to the researchers, the technique may make determination of all kinetic isotope effects routine features of investigating reactions. |
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http://www.chem.tamu.edu/rgroup/singleton/SingletonRes.html
(1309 words)
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| | Singleton |
| | In May, 1908, Earnest and Edna Singleton moved to Port Arthur, where he also worked as a butcher. | | | Earnest Newton Singleton moved his family to Nederland in 1901 to operate a meat market, making his household one of the first native-born families in an immigrant colony where almost nothing but the Dutch language was spoken. | | | Singleton's step-father was Blewitt Langham, and Singleton's arrival in Nederland would result in the subsequent arrival of the Blewitt Langham family, as well as Singleton's half-brother, Virgil Langham, and his family. |
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http://www.wtblock.com/wtblockjr/singleto.htm
(881 words)
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| | singleton - definition of singleton by the Free Online Dictionary, Thesaurus and Encyclopedia. |
| | Games A playing card that is the only one of its suit in a player's hand. | | | singleton - a single object (as distinguished from a pair) | | | This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. |
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http://www.thefreedictionary.com/singleton
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| | Walkabout - Singleton |
| | Singleton cut a 3-km track through the bush to the school so the children would not lose their way. | | | In fact it has good examples of all the main phases of Australian architectural history. | | | One of the commercial buildings which sprang up with the arrival of the railway is the white house on the corner which was built in the 1860s as Glass's General Store. |
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http://www.walkabout.com.au/locations/NSWSingleton.shtml
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| | Singleton Productions, Inc. |
| | Call us at toll-free at 888-746-4446, or 972-226-7118 in Dallas to put us to work on your project today. | | | The technical specs for the concert performance included over 70 mic inputs, 80 channels to be recorded, and management of a huge crew for the event. | | | Past remote work has included projects for PBS, HBO, CBS, Westwood One, and many others. |
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http://singletonproductions.com
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| | CNN.com - Executed mentally ill inmate heard voices until end - Jan. 6, 2004 |
| | Singleton, however, was rational only when he was on medication. | | | Singleton understood that he would be put to death and why -- the current legal standards to qualify for execution, said his attorney, Jeff Rosenzweig. | | | In October 2001, a panel of the 8th U.S. Circuit Court of Appeals ruled that Singleton be sentenced to life in prison without the possibility of parole. |
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http://www.cnn.com/2004/LAW/01/06/singleton.death.row
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| | CNN.com - Jane Jetson voice Penny Singleton dead - Nov. 14, 2003 |
| | Singleton was born in 1908 -- some references say 1909 -- daughter of a Philadelphia newspaperman. | | | All external sites will open in a new browser. | | | Singleton also appeared in the 1964 film "The Best Man" but spent most of her time touring in nightclubs and roadshows of plays and musicals such as "Call Me Madam." |
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http://www.cnn.com/2003/SHOWBIZ/TV/11/14/obit.singleton.ap
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| | PBS - THE WEST - Benjamin "Pap" Singleton |
| | Singleton spread the word about his settlements through posters that circulated widely across the South, and he formed a company with Johnson that helped hundreds of black Tennesseans move to Kansas between 1877 and 1879. | | | Singleton was born in 1809 in Nashville, Tennessee, where he was several times sold as a slave but always managed to escape. | | | Unfortunately, Singleton soon discovered that there was not enough capital within the black community to achieve this goal. |
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http://www.pbs.org/weta/thewest/people/s_z/singleton.htm
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| | Handbook of Texas Online: SINGLETON, TX |
| | In 1915 the population of Singleton was 100, and it was about 150 by 1936, when there were five accredited businesses reported there. | | | In 1961 the town reported an estimated fifty residents and one rated business. | | | Handbook of Texas Online: SINGLETON, TX format this article to print |
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http://www.tsha.utexas.edu/handbook/online/articles/view/SS/hns50.html
(394 words)
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| | Singleton Shire Council |
| | It has a storage capacity of 283,000 million litres. | | | In 1983 it was formed by the Glennies Creek Dam which plays an important role in improving the supply of water for homes, farms and industry in the Hunter Valley. | | | The Department of Water Resources began constructing Glennies Creek Dam in August 1980 and it was completed by June 1983. |
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http://www.singleton.nsw.gov.au/template/page.jsp?pageId=310
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| | Amazon.com: Why Dogs Chase Cars : Tales of a Beleaguered Boyhood (Shannon Ravenel Books (Paperback)): Books: George ... |
| | Much of the novel is an excuse for Singleton to string together a series of loosely connected anecdotes peopled by characters who might have stepped out of the pages of a Flannery O'Connor novel. | | | Singleton's tales of southern eccentrics have always balanced bursts of hilarity with a compelling heft and complexity of feeling. | | | Buy this book with The Half-Mammals of Dixie by George Singleton today! |
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http://www.amazon.com/exec/obidos/tg/detail/-/1565124049?v=glance
(977 words)
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| | Alvin Singleton |
| | Important international festivals have also programmed Singleton's music. | | | Singleton's oeuvre includes works for the theater, orchestral pieces, instrumental solos, and a wide range of chamber ensembles. | | | After working for more than a decade in Europe, Singleton served as composer in residence with the Atlanta Symphony Orchestra from 1985 to 1988 and was resident composer at Spelman College from 1988 to 1991. |
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http://www.otherminds.org/shtml/Singleton.shtml
(217 words)
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| | Ken Singleton Statistics - Baseball-Reference.com |
| | You Are Here > Baseball-Reference.com > Players > Ken Singleton | | | Statistics may come from our work, the Baseball Databank, or other sources including SABR.org. | | | Born June 10, 1947 in New York, NY |
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http://www.baseball-reference.com/s/singlke01.shtml
(677 words)
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| | Singleton & the villages of the Lavant Valley |
| | Andrew Greer is researching family history and is keen to trace anyone with knowledge of Alfred Marriott from 1939-40! | | | This regular feature staged in Singleton by Singleton Cricket Club has been announced for 2006. | | | Help requested for family research (see below) 25/02/06 |
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http://www.singletonvillage.com
(953 words)
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| | John Singleton - definition of John Singleton in Encyclopedia |
| | John Daniel Singelton (born January 6, 1968) is a notable African-American film director, producer, and screenwriter. | | | Embed a dictionary search in your own web page | | | John Singleton - definition of John Singleton in Encyclopedia |
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http://encyclopedia.laborlawtalk.com/John_Singleton
(116 words)
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| | Singleton Tourism - Hotels, Accommodation and Tours - Official Site |
| | The mining and power industries are important to the Singleton economy, and escorted Mine Tours which include a detailed inspection of an open cut mine are available. | | | Visit the Coal Industry Centre which has interactive display material, models and exhibits on the Coal Mines and Power Stations. | | | Step back in time with a guided tour through the Singleton Mercy Convent which dates from 1893. |
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http://www.hunterheartland.com.au
(300 words)
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| | Singleton, New South Wales Forecast : Weather Underground |
| | Find the Weather for any City, State or ZIP Code, or Airport Code or Country | | | View the Personal Weather Stations for this area using Google Maps! | | | Singleton, New South Wales Forecast : Weather Underground |
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http://www.wunderground.com/global/stations/94733.html
(305 words)
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