AppletTalk.com Java discussions newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  looking for complex code example for best swing / MVC practi          AppletTalk.com Forum Index -> Java GUI Toolkits View previous topic :: View next topic   Author Message antoine Guest Posted: Wed Aug 30, 2006 7:10 am    Post subject: looking for complex code example for best swing / MVC practi Hello, I've been using Swing to develop complex GUI (standalone applications) for quite some time and feel confident with the language, the components, the layout, all the graphic part basically, however I get the feeling I still can't grasp the good way of dealing with MVC / separating business logic from graphic elements. I've been searching for a complete & complex example application with good design, from which I could learn & realize my mistakes, but couldn't find any through google so far... would anyone know of such app ? maybe an open source project ? thanks for any info you might contribute... -Antoine Back to top Karsten Lentzsch Guest Posted: Wed Aug 30, 2006 7:10 am    Post subject: Re: looking for complex code example for best swing / MVC pr antoine wrote: Quote: [...] I've been searching for a complete & complex example application with good design, from which I could learn & realize my mistakes, but couldn't find any through google so far... [...] Martin Fowler describes desktop patterns that I found useful for working with Swing, especially "Presentation Model" and the Model-View-Presenter (MVP) variants, and a bunch of other less important patterns such as Presentation Chooser or Event Aggregator. Martin motivates these patterns and why one would separate the presentation logic from the presentation in a longer text. Just google for "Organizing Presentation Logic". I provide presentations that describe the architecture of the JGoodies tools and demos. These slides complement Fowlers texts and pattern descriptions; my focus is on the concrete Swing implementation. My favorite pattern for Swing is "Presentation Model", because Swing already includes a good portion of the synchronization necessary for using this pattern. The free JGoodies Binding tutorial contains source code examples for using "Presentation Model" with Swing. And so you can get the following for free: Fowlers motivation, and his pattern catalog, my slides with additional diagrams, smaller Swing source code examples. My presentations are here: http://www.jgoodies.com/articles/ -Karsten Back to top unomystEz Guest Posted: Sat Sep 02, 2006 7:41 pm    Post subject: Re: looking for complex code example for best swing / MVC pr Karsten, I looked at your presentations and they are very good, thanks. What about when dealing with extremely high performance GUI applications that have a lot of complexity at the model layer, enough to warrant writing a custom event dispatch/firing mechanism - as opposed to using the built-in Java dispatching. ie, consider a stock application that monitors 2000 stocks and stock prices can change very often, in total maybe 40 updates a second a realized, then up to 30 swing components per stock needs to be notified which could result in a lot of firing and handling per second. What are your thoughts on this? Karsten Lentzsch wrote: Quote: antoine wrote: [...] I've been searching for a complete & complex example application with good design, from which I could learn & realize my mistakes, but couldn't find any through google so far... [...] Martin Fowler describes desktop patterns that I found useful for working with Swing, especially "Presentation Model" and the Model-View-Presenter (MVP) variants, and a bunch of other less important patterns such as Presentation Chooser or Event Aggregator. Martin motivates these patterns and why one would separate the presentation logic from the presentation in a longer text. Just google for "Organizing Presentation Logic". I provide presentations that describe the architecture of the JGoodies tools and demos. These slides complement Fowlers texts and pattern descriptions; my focus is on the concrete Swing implementation. My favorite pattern for Swing is "Presentation Model", because Swing already includes a good portion of the synchronization necessary for using this pattern. The free JGoodies Binding tutorial contains source code examples for using "Presentation Model" with Swing. And so you can get the following for free: Fowlers motivation, and his pattern catalog, my slides with additional diagrams, smaller Swing source code examples. My presentations are here: http://www.jgoodies.com/articles/ -Karsten Back to top Karsten Lentzsch Guest Posted: Sun Sep 03, 2006 4:14 pm    Post subject: Re: looking for complex code example for best swing / MVC pr unomystEz wrote: Quote: [...] What about when dealing with extremely high performance GUI applications that have a lot of complexity at the model layer, [...] in total maybe 40 updates a second a realized, then up to 30 swing components per stock needs to be notified which could result in a lot of firing and handling per second. What are your thoughts on this? Repainting costs more than firing and listening to events. If performance is critical, identify the hot spots that consume the time, and I guess it'll be drawing and potentially revalidation of the views. Check the standard tricks to improving the painting performance: invalidate only necessary portions, honor the clipping rectangle, consider using a customized repaint manager. Two years ago I worked with apps that fired and observed 10 times more events than are handled by my recent code. (Before 1.0 the JGoodies Binding lacked the BeanAdapter) Reducing the number of events and handlers did result in no perceived performance improvements. The motivation for reducing the number of events and handlers was debugging. If you have more concerns about performance, you may post at the forums at javadesktop.org. It seems to me that the audience is larger there, and that you get feedback from AWT/Swing team members there. -Karsten Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         AppletTalk.com Forum Index -> Java GUI Toolkits All times are GMT Page 1 of 1   Jump to: Select a forum Java Newsgroups----------------Java DiscussionsWeb-based java games comp.lang.java 3D Graphics API's for Java Java: Support and criticism Java System Announcements comp.lang.java.api JavaBeans Java and CORBA Java and Databases comp.lang.java.developer Java GUI Toolkits Java Help comp.lang.java.javascript JVM, native methods and hardware comp.lang.java.misc Java Language Programming Security and Java comp.lang.java.setup Java Software Tools comp.lang.java.tech ibm.software.java.linux  Non-English Java Newsgroups----------------Java Language (German)Language Java (Français)Java (Italian)  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 Powered by phpBB © 2001, 2006 phpBB Group SEO toolkit © 2004-2006 webmedic.