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| | GoF Design Pattern::Creational::Abstract Factory |
 | | When given a set of related abstract classes, the Abstract Factory Pattern can be used to create instances of those abstract classes from a matched set of concrete classes. | | | One drawback of the Abstract Factory pattern is that it can be a lot of work to write a set of classes to interface with a new product. | | | In short, Abstract Factory provides an interface for creating families of related or dependent objects without specifying their concrete classes (Gamma, 1995). |
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http://pages.cpsc.ucalgary.ca/~chi/SENG/609_04/AbstractFactorySummary.html
(427 words)
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| | Abstract Factory Patterns in C# |
| | The Abstract Factory provides an interface to create and return one of several families of related objects. | | | The following is a simples interpretation and implementation of this pattern. | | | The creational patterns deals with the best way to create objects. |
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http://www.c-sharpcorner.com/Language/AbstractFactoryPatternsinCSRVS.asp
(443 words)
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| | Abstract Factory Summary - Design Patterns |
| | The Abstract Factory pattern is designed to decouple the creation of the objects from the code wanting some object. | | | Then, only the creation of the factory would need to be changed in order to change the whole program such that it used a different set of subclasses. | | | But, because they want this to be completely transparent to the user, they seem to be using the Strategy pattern to encapsulate all of the factories. |
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http://pages.cpsc.ucalgary.ca/~heard/dp/abstract-factory-summary.html
(347 words)
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| | Pattern Summaries: Abstract Factory Pattern |
| | In that case, the abstract factory class will typically have a static variable set to the concrete factory class that is used for the duration of the program run. | | | The data structure allows an abstract factory to select a concrete factory object by performing a lookup on the data structure. | | | A complete pattern will also provide reasons to use or not use the solution, the consequences of using the solution, and suggestions on how to implement the solution. |
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http://www.developer.com/tech/print.php/626161
(1562 words)
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| | [No title] |
| | The Abstract Factory pattern provides an interface for creating families of related or dependent classes without having to specify the actual classes. | | | The Abstract Factory design pattern is defined in the book, Design Patterns - Elements of Reusable Object-Oriented Software. | | | All of these methods are made virtual, so that subclasses of the factory class can implement their own MakeRoom class which can create a subclass of the Room class. |
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http://www.devhood.com/tutorials/tutorial_details.aspx?tutorial_id=654
(1085 words)
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| | SENG 609.04 Design Patterns: Paper |
| | The Factory Method pattern is most used to implement AbstractFactory classes because it is simple and easy to understand and implement, while the Prototype pattern makes the Abstract Factory more flexible by dynamically creating the product objects and more compact by reducing the hierarchy of the concrete factory subclasses. | | | The Prototype pattern is especially successful in solving such problems: a class belongs to a framework, and it want to access instances of the application-specific classes in a hierarchy that it has no idea (and should not know) what they actually look like. | | | A class creational pattern uses inheritance to change the class to be instantiated, while an object creational pattern delegates instantiation to another object. |
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http://sern.ucalgary.ca/courses/SENG/609.04/W98/hongd/paper3.html
(2176 words)
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| | Factory Method |
| | The pattern describes the interface, not the implementation, so questions about whether a new object is created (implementation), can't/don't apply to the question of whether some collection of methods follow FactoryMethod pattern. | | | I believe that one of the main reasons for this pattern is to implement a framework across a wide variety of implementations. | | | At least to the extent of my knowledge of the subject, when using the Factory Method objects should be created of just one class, and the Abstract Factory provides the polymorphism that is suggested in the above Computer example. |
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http://c2.com/cgi/wiki?FactoryMethod
(1293 words)
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| | Factories |
| | Obviously, the factory pattern is useful in that it prevents code from having to know the implementation of a procedure, but using the factory pattern for every single class is absurd. | | | In hangman, for example, the abstract factory pattern was used to created the word list and the body, but not for the hangman game and, the running and not-running states (they were instantiated directly with "new RunningState" or "new NotRunningState"). | | | We could use a factory to create appropriate states for HangmanGame, but we chose not to do so since, in the context of what we are trying to do, there is no need to allow for different implementations of the states for HangmanGame. |
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http://www.owlnet.rice.edu/~comp212/04-spring/lectures/27/factory.html
(433 words)
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| | Abstract Anonymous Factory Pattern |
| | Using this method, to add support for a new type of factory, the developer must implement the objects that are created by the concrete factory, create a new concrete subclass of the abstract anonymous factory, and modify a configuration file that is read dynamically at runtime. | | | Since the concrete widget factory implements a known interface, it can be instantiated as a generic Object instance, and then cast to the appropriate interface type. | | | A factory is an object that creates instances or related types of objects. |
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http://www.timfanelli.com/item/37
(477 words)
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| | An Architect's View - ColdFusion, Software Design, Frameworks and more... |
| | With abstract factory, you usually have multiple factory implementations and each factory implementation is responsible for creating objects that are usually in a related hierarchy. | | | We see this with hand-coded factories that we give a text string to and get back an object - the text string is either a simple key, the name of a component type or the ID of some object described elsewhere (e.g., an XML file). | | | Someone asked today whether the abstract factory design pattern might be overkill for general ColdFusion web applications. |
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http://corfield.org/entry/Abstract_Factory_Design_Pattern
(381 words)
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| | jGuru: Difference between Abstract Factory Pattern and Command Pattern |
| | The abstract factory pattern is one level of abstraction higher than the factory method pattern. | | | I very well understand the difference between Abstract factory and Factory method patterns, but not able to really distinguish these two patterns in terms of when to implement these patterns. | | | Factories return one of the several related classes. |
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http://www.jguru.com/forums/view.jsp?EID=1234911
(293 words)
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| | Discussion 2 - Joung-Goo Lee |
| | Abstract Factory Design Pattern is a kind of Creational Pattern that helps to create a class, which has same or similar interface form. | | | When we embody those above, the Abstract Factory Pattern is very useful because it coordinates interface, so we do not need to care of the parts in programming. | | | Therefore, using object oriented language makes “flexible” design patterns possible other than machine language or assembly language. |
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http://coweb.cc.gatech.edu/cs2340/4648
(286 words)
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| | Achieve Persistence Independence |
| | By abstracting the creation of concrete DAO families, we address the problem in which data store changes require recoding those parts of the application where DAOs are created (see Listing 7). | | | Recall that the main goal of the DAO pattern is to minimize the impact that data store changes have on the rest of the application. | | | Though this is sometimes reasonable, often it is not at all reasonable, and in any case, it is better to make data store selection a deployment issue rather than a development issue. |
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http://www.fawcette.com/Archives/premier/mgznarch/javapro/2001/11nov01/jw0111/jw0111-4.asp
(751 words)
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| | Together Tutorial -- Part 7 |
| | Creating a pattern can result in a pretty messy diagram, especially if new classes or interfaces are generated in the process. | | | Ctrl+drag to copy an operation from an abstract class or interface to a concrete class. | | | The next pattern window has a text field for entering the product. |
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http://www.utc.edu/Academic/ComputerScience/SmartStart/7classpatterns.html
(1246 words)
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| | Presentations |
| | The purpose of the abstract factory pattern is to provide an interface for creating one of a family of objects without specifying that object's concrete class name. | | | Logger::getAnalyzer() would be a factory method that returned the correct Analyzer object; the Logger subclass would know which class to instantiate. | | | An example would be if you had a Logging package, and different Analyzer classes for each different Logger subclass. |
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http://www.horde.org/papers/kongress2002-design_patterns/8_abstractfactory.xml.html
(285 words)
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| | JAVA DESIGN PATTERNS, Creational Patterns - Abstract Factory Pattern |
| | Suppose we need to get the specification of various parts of a computer based on which work the computer will be used for. | | | One of the main advantages of Abstract Factory Pattern is that it isolates the concrete classes that are generated. | | | Now let’s have a look at the Abstract factory which returns a factory “Computer”. |
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http://www.allapplabs.com/java_design_patterns/abstract_factory_pattern.htm
(403 words)
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| | New Page 1 |
| | The Abstract Factory pattern allows you to work with a variety of complex external entities and is used very often in Java especially in AWT -- the pluggable look and feel. | | | For example I used Abstract Factory pattern to create Data Access Objects (DAO) used to isolate the database from the business layer and to specify different ways to access the database: EJB, object relational mapping tools or JDBC calls. | | | The Abstract Factory pattern " provides an interface for creating families of related or dependent objects without specifying their concrete classes" (Gamma, et al. |
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http://www.enel.ucalgary.ca/~cervatiu/609_04/week4.htm
(779 words)
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| | What is Abstract Factory Design Pattern? |
| | The solution is to abstract all of the interactions and force the implmentation to adhere to the API defined by those abstractions. | | | Posted by: kakumanu srikanth on March 11, 2005 @ 05:03 AM I understood the way we create the Abstract Factory Design Pattern with multiple classes. | | | What this particular "factory" is creating are java.sql.Connection Objects. |
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http://www.theserverside.com/discussions/thread.tss?thread_id=32519
(583 words)
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| | Java Technology Forums - Create client classes in Abstract Factory |
| | One common way would be to have a static method on the Abstract class that returns instances of itself. | | | But if I at once used abstract factory or other creation patterns I would not do these changes. | | | But it's not work when AbstractFactory is a interface, not a abstract class. |
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http://forum.java.sun.com/thread.jsp?forum=425&thread=392101
(1300 words)
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| | Core J2EE Patterns - Data Access Object |
| | When the underlying storage is subject to change from one implementation to another, this strategy may be implemented using the Abstract Factory pattern. | | | Consider an example where we are implementing this strategy in which a DAO factory produces many DAOs for a single database implementation (e.g., Oracle). | | | Further, if employing a factory strategy, it is possible to provide a concrete factory implementation for each underlying storage implementation. |
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http://java.sun.com/blueprints/corej2eepatterns/Patterns/DataAccessObject.html
(2834 words)
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| | Factory Patterns |
| | In the Abstract Factory pattern, a special class, called a factory, is created whose sole purpose is to instantiate instances of a class. | | | This allows an extra level of indirection in creating objects and passing them as parameters. | | | There are two reasons one might want to do this. |
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http://www.exciton.cs.rice.edu/CppResources/DesignPatterns/Factory.html
(264 words)
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| | [No title] |
| | The intent of this pattern is to provide an abstract specification for manufacturing a family of related objects (for examples, the empty and non-empty IList) without specifying their actual concrete classes thus hiding all details of implementation from the user. | | | Yet this algorithm need only communicate with the list structure and the list factory via their public interface. | | | We can achieve our goal by applying the Abstract Factory Design Pattern to hide the concrete implementation from the user. |
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http://www.cs.rice.edu/~cork/teachjava/2003/code/dailyCode/factory/factory.html
(1440 words)
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| | Abstract Factory |
| | Provides one level of interface higher than the factory pattern. | | | You may use abstract factory design pattern to design the interface in the following way: | | | Suppose you need to write a program to show data in two different places. |
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http://www.javacamp.org/designpattern/abstractfactory.html
(252 words)
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| | Abstract Factory Pattern |
| | An abstract factory provides an interface for creating families of related objects without specifying their concrete classes. | | | Gamma et al., "Design Patterns: Elements of Reusable Object-Oriented Software", ISBN 0-201-63361-2, Addison Wesley, 1995. | | | However, it would also be possible to use Java interfaces instead. |
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http://www.hta-bi.bfh.ch/~due/se1/script/generated/afp.fm.html
(405 words)
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| | SENG 609.04 |
| | The main intention for this pattern is to provide an interface for creating families of related or dependent objects without specifying their concrete classes. | | | A possible solution to solve this problem is by the use of abstract WidgetFactory class. | | | Below is the graphical illustration of the abstract factory classes: |
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http://www.ucalgary.ca/~samulee/seng60904/abstractfactory.html
(484 words)
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| | Abstract Factory Design Pattern |
| | The Delphi implementation for the pattern is from Shaun Parry. | | | For example, you could have a document which would be printed differently depending on the printer being used, but would still have to contain the same information. | | | In the above class diagram, you can see how the Client Class function, CreateProduct, uses the AbstractFactory classes' CreateProduct function to create an object of the AbstractProduct class. |
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http://www.castle-cadenza.demon.co.uk/abfact.htm
(281 words)
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| | Solve application issues with the factory pattern |
| | Since a real factory class is unlikely to implement a simple “if” statement, there are many options to consider for determining the appropriate class. | | | The factory pattern does an excellent job of solving the multiple hardware issue in this example. | | | The application code can then use the most optimized object for the task at hand without needing to know the details of how that object is created. |
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http://builder.com.com/5100-6386_14-1045719-2.html
(325 words)
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| | SE362 - Unit 3 Learning Outcomes |
| | Identify the challenges in using the interpreter class hierarchy for parsing input, as opposed to implementing operations on already-built abstract syntax trees. | | | Describe how Factory Method often is used to implement one of the algorithm's steps in the Template Method pattern. | | | Explain why the decorator and the concrete component must adhere to the same interface. Describe the mechanism for extending the interface of the concrete decorators. |
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http://www.se.rit.edu/~se362/UnitActivities/Unit3-Outcomes.htm
(453 words)
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| | Persistence Model – Using Abstract Connection factory Pattern |
| | EJB Design Patterns was the #2 book at Java One 2002, and held the #1 Java book position on Amazon.com for weeks since the book was released in March. | | | EJB Design Patterns is now available for free download in PDF format. | | | The book contains a catalog of twenty advanced EJB patterns and provides strategies for mapping application requirements to patterns-driven design, J2EE development best practices, and more. |
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http://www.theserverside.com/patterns/thread.tss?thread_id=33598
(854 words)
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| | Pattern - Abstract Factory |
| | Abstract Factory allows us to specify a way to make things without having to go to great detail (and thus causing reusability problems later.) By specifying common construction methods, but requiring them to be instantiated by concrete classes, other objects can interact with the created factories in a uniform manner. | | | Abstract Factory gives us a method for describing, in general, how certain objects should be created. | | | Factory Method - Used to implement the Abstract Factory |
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http://home.swbell.net/khylton/Pattern-AbstractFactory.html
(387 words)
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| | Fall01 Final Exam Review: Design Patterns |
| | In the Factory Method Pattern the ConcreateCreator will return one type of object. | | | a)The difference in Factory Method Pattern and Abstract Factory Pattern is the type objects that the ConcreteCreator can create. | | | In the case of Bridge, it decouples abstractions less to maximise compatibilities than to hide complexities from a user. |
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http://coweb.cc.gatech.edu/cs2340/1868
(283 words)
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| | Java Practices: Abstract Factory |
| | An Abstract Factory is a major part of the Data Access Object scheme. | | | Users of an Abstract Factory can create families of related objects without any knowledge of their concrete classes. | | | The Abstract Factory pattern is an important example of this technique. |
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http://www.javapractices.com/Topic128.cjp
(561 words)
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| | Design Patterns in PHP - Factory Method and Abstract Factory |
| | DP is a reference to the book "Design Patterns". | | | Normally, in object oriented programming, object creation is not difficult. | | | This article will discuss the usage of Factory Method [DP107] and Abstract Factory [DP87] as they pertain to developing applications in PHP using object oriented programming techniques. |
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http://www.devshed.com/c/a/PHP/Design-Patterns-in-PHP-Factory-Method-and-Abstract-Factory
(559 words)
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| | Abstract Factory Design Pattern |
| | The Delphi implementation for the pattern is from Shaun Parry. | | | All the methods are contained within the maker class and any variations you require are done by overriding the methods of the maker class. | | | Abstract Factory but without the additional factory/builder class. |
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http://www.castle-cadenza.demon.co.uk/factory.htm
(208 words)
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| | Playfool » Factory Pattern |
| | There is also the Abstract Factory pattern, which is a little differetn, and sometimes leads to confusion (abstract pattern provides an interface for a group of related items (a “family), while Factory Method generally privodes an interface for returning one instance of a particular object. | | | Patterns patterns patterns, all I seem to think about is patterns these days, well I have knocked up a quick factory pattern example which all the source etc is free to download, I will write a tutorial on how and why its done next week as I am in need of beer now. | | | Subscribe to comments with RSS or TrackBack to ' Factory Pattern '. |
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http://www.playfool.com/blog/?p=271
(190 words)
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| | Abstract Factory Pattern |
| | Abstract Factory Pattern provides an interface for creating families of related or dependent objects without specifying their concrete classes. | | | Click Add to choose interfaces that the new factory class implements. | | | Determines whether new packages should be created for each factory and set of products |
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http://www.instantiations.com/codepro/ws/docs/features/patterns/abstract_factory_pattern.html
(301 words)
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| | The Abstract Factory Design Pattern |
| | In this way, all disks will work in the pasta maker, since they all comply with the same specifications. | | | This specification for the disks is the Abstract Factory, and each specific disk is a Factory. | | | All disks should have certain properties in common, so that they will work with the pasta maker. |
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http://exciton.cs.rice.edu/JavaResources/DesignPatterns/FactoryPattern.htm
(691 words)
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| | Object-Oriented Software Development Using Java Source Code |
| | TableEntry.java - an interface for the entries to be displayed in the table, target of the adapter pattern | | | A design and implementation of the Maze game using Abstract Factory pattern | | | SimpleMazeGame.java - a simple implementation of the maze game that does not use creational patterns |
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http://se.cs.depaul.edu/Java/chap10.html
(679 words)
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| | Abstract Factory Sample Code |
| | Intent, Motivation, Applicability, Structure, Participants, Collaborations, Consequences, Implementation, Sample Code, Known Uses, Related Patterns | | | This is the most common way to implement the Abstract Factory pattern. | | | This is another common implementation for simple applications of the Abstract Factory pattern. |
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http://www40.brinkster.com/apostolosm/pages/patterns/abfact/sample.htm
(637 words)
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| | The Abstract Factory: The only debate on Intelligent Design that is worthy of its subject |
| | The Abstract Factory: The only debate on Intelligent Design that is worthy of its subject | | | Aristotle's Physics dealt with this very thing, sans "scriptural quotation or exegesis." Referencing the Bible it would be as simple as citing Genesis 1:1 and saying "Yes, I bel | | | Analysis and freaky sensitivity/We've gotta live on science alone |
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http://abstractfactory.blogspot.com/2005/10/only-debate-on-intelligent-design-that.html
(10758 words)
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| | Factory Method pattern in LePUS 2 |
| | This pattern is defined informally in the "Gang of Four" catalogue of design patterns [Gamma et. | | | Below we give the formal specification of the pattern both in the visual and the symbolic versions of LePUS 2. | | | In [Eden 01] we prove that the Factory Method is a projection of the Abstract Factory pattern. |
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http://www.eden-study.org/lepus/specifications/gof/factory-method.html
(85 words)
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| | Anonymous Abstract Factory pattern revisited |
| | I'd love to get a couple developers working on it, adding features such as support for factory constructors, configurable factories, and a few other features. | | | Well I've finally got around to pulling the framework for that pattern out of the jETIA source tree, so I CPL'd it and am making it available here: AnonymousAbstractFactory-1.0.0.tar.bz2. | | | A while ago I had posted an article about the Anonymous Abstract Factory Pattern - an adaptation of the Abstract Factory Pattern that takes advantage of anonymous class loading in Java. |
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http://www.timfanelli.com/item/3
(194 words)
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| | The Abstract Factory |
| | [3] I don't believe in free will, so in some abstract philosophical sense I would agree that choice doesn't exist. | | | (But perhaps you meant to search for the abstract factory design pattern.) | | | Lesbian Nazis probably exist, and they're probably anti-Semites, but they're not exactly the heart of the anti-Semitism problem, and you would have to have some pretty weird issues even to bring it up. |
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http://abstractfactory.blogspot.com
(6563 words)
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| | Abstract Factory Design Pattern |
| | Home > Object Oriented VB.NET > Abstract Factory Design Pattern | | | This site is not affiliated in any way with the Microsoft Corporation. | | | All trademarks remain the property of their respective owners. |
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http://www.learnvisualstudio.net/videos/053003_Abstract_Factory_Design_Pattern.htm
(41 words)
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| | The Abstract Factory Pattern |
| | You can read more about the Abstract Factory Pattern and the Factory Method if you like. | | | Yesterday I discovered Holger Kohnen's new blog and his article about Constructor-Factory where he is tweaking the prototype chain in order to get his favourite car ;o) The following script shows a more conventional approach I had fun with. | | | Driving Porsche at 240 Assembling a brand new Lancia. |
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http://code.audiofarm.de/AbstractFactoryPattern
(64 words)
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