Computer Software Talk Computer Software Talk    FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Opposite of Facade?          Computer Software Talk Forum Index -> Computer Software Talk View previous topic :: View next topic   Author Message K Guest Posted: Fri Jan 11, 2008 12:50 am    Post subject: Opposite of Facade? Is there a design pattern that's the conceptual opposite of a facade? While a facade presents a single interface to a more complex underlying mechanism (fan out), is there a pattern that presents a diverse range of interfaces to a single, simple underlying mechanism? For example, I have a component that takes in XML data and transforms, enriches and manipulates it. This is the single underlying component. However, the component can receive this XML data from several different sources and transports such as HTTP, JMS, etc. In effect, this component is presenting multiple, diverse interfaces to the same function. Is there a design pattern that talks about this? If so what is it and where can I find more information about it? TIA Back to top   Ads Advertising Sponsor H. S. Lahman Guest Posted: Sat Jan 12, 2008 5:24 am    Post subject: Re: Opposite of Facade? Responding to K... Quote: Is there a design pattern that's the conceptual opposite of a facade? While a facade presents a single interface to a more complex underlying mechanism (fan out), is there a pattern that presents a diverse range of interfaces to a single, simple underlying mechanism? For example, I have a component that takes in XML data and transforms, enriches and manipulates it. This is the single underlying component. However, the component can receive this XML data from several different sources and transports such as HTTP, JMS, etc. In effect, this component is presenting multiple, diverse interfaces to the same function. Is there a design pattern that talks about this? If so what is it and where can I find more information about it? I don't think so. It is fundamental to OOA/D that interfaces are separate from the objects they encapsulate and one can have multiple interfaces to access the object. Modern OOPLs like Java explicitly support this with language constructs. So one doesn't really need a pattern; it is already part of the OOA/D notation or OOPL syntax. -- There is nothing wrong with me that could not be cured by a capful of Drano. H. S. Lahman hsl@pathfindermda.com Pathfinder Solutions http://www.pathfindermda.com blog: http://pathfinderpeople.blogs.com/hslahman "Model-Based Translation: The Next Step in Agile Development". Email info@pathfindermda.com for your copy. Pathfinder is hiring: http://www.pathfindermda.com/about_us/careers_pos3.php. (888)OOA-PATH Back to top   Ads Advertising Sponsor Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         Computer Software Talk Forum Index -> Computer Software Talk All times are GMT Page 1 of 1   Jump to: Select a forum Computer Software Talk----------------Computer Software Talk  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Australian Debt Consolidation Experts medical insurance Wedding Website Search Escorts and girls (incall/OutCall) online with Oasi2000, ItaliaChiamami, BestAnnunci... Swingers in Spain Search Engines Optimization Talk remortgages Make Your Own Website Cheap calls to Poland Long island Cleaning service toxic mold UK Swingers Genuine Contacts Site Janitorial Supplies Hoover Vacuum Parts 112 Attacks blocked Powered by phpBB © 2001, 2005 phpBB Group