its a custom service... i created it in my project sorry for the misunderstanding
g, kris p.stavrini...@albourne.com 27.07.2009 12:23 Bitte antworten an "Tapestry users" <users@tapestry.apache.org> An Tapestry users <users@tapestry.apache.org> Kopie Thema Re: Tapestry 5 IoC Eagerloading and ordering of services Hi Kristian, Could you please point me to the JavaDoc of this service? Thanks, Peter -- If you are not an intended recipient of this e-mail, please notify the sender, delete it and do not read, act upon, print, disclose, copy, retain or redistribute it. Please visit http://www.albourne.com/email.html for important additional terms relating to this e-mail. ----- Original Message ----- From: "Peter Stavrinides" <p.stavrini...@albourne.com> To: "Tapestry users" <users@tapestry.apache.org> Sent: Monday, 27 July, 2009 12:57:56 GMT +02:00 Athens, Beirut, Bucharest, Istanbul Subject: Re: Tapestry 5 IoC Eagerloading and ordering of services I added a documentation enhancement request: https://issues.apache.org/jira/browse/TAP5-795 Thanks again, Peter ----- Original Message ----- From: "P Stavrinides" <p.stavrini...@albourne.com> To: "Tapestry users" <users@tapestry.apache.org> Sent: Monday, 27 July, 2009 12:45:29 GMT +02:00 Athens, Beirut, Bucharest, Istanbul Subject: Re: Tapestry 5 IoC Eagerloading and ordering of services Thanks Kristian! Thats good enough for me, I think the documentation should include this point though. Cheers, Peter ----- Original Message ----- From: "Kristian Marinkovic" <kristian.marinko...@porsche.co.at> To: "Tapestry users" <users@tapestry.apache.org> Sent: Monday, 27 July, 2009 11:50:08 GMT +02:00 Athens, Beirut, Bucharest, Istanbul Subject: Re: Tapestry 5 IoC Eagerloading and ordering of services hi Peter, because i couldn't control the ordering of eager load services i stated that no developer may define an eager load service himself. instead i created an eager load service (StartupInitializer) that accepts an orderedconfiguration of initializers every developer must contribute to. g, kris p.stavrini...@albourne.com 27.07.2009 09:55 Bitte antworten an "Tapestry users" <users@tapestry.apache.org> An Tapestry users <users@tapestry.apache.org> Kopie Thema Re: Tapestry 5 IoC Eagerloading and ordering of services Hi, Before I open a jira for this I have devised an coded example to illustrate it, and hopefully get some comments: //Example: The shell of an eagerloaded service public class ImageService { /** Cache to hold thumbnail images */ private static ConcurrentHashMap<Integer, Thumbnail> imageCache_ = new ConcurrentHashMap<Integer, Thumbnail>(); public void preloadImageCache() { DbConnection connection = null; try { //Sometimes this turns into a Null Pointer Exception as another eagerloaded service sets up the connection pool etc. //this service should start up after that one, but this is not always the case in practice?? connection = DatabaseConnection.getReadConnection(); //database query } catch (Exception e) { //handle exception } } public static ImageService build() { return new ImageService(); } public ImageService() { preloadImageCache(); } } //Workaround: adding a dependency on the other eagerloaded service solves it, but this is not a practical solution if there are many of these services public class ImageService { /** Cache to hold thumbnail images */ private static ConcurrentHashMap<Integer, Thumbnail> imageCache_ = new ConcurrentHashMap<Integer, Thumbnail>(); public void preloadImageCache() { DbConnection connection = null; try { connection = DatabaseConnection.getReadConnection(); //database query } catch (Exception e) { //handle exception } } public static ImageService build(SiteInitialise siteInitialise) { return new ImageService(siteInitialise); } public ImageService(SiteInitialise siteInitialise) { if(siteInitialise.isConnectionOk()) preloadImageCache(); } } If there is a way to ensure the ordering of eagerloaded services, then this is not an issue, perhaps this is a regression from the fix to http://issues.apache.org/jira/browse/TAPESTRY-2267 ? otherwise I am surprised that others have not come across this, perhaps I have missed something? Cheers, Peter ----- Original Message ----- From: "Peter Stavrinides" <p.stavrini...@albourne.com> To: "Tapestry Mailing List" <users@tapestry.apache.org> Sent: Friday, 24 July, 2009 15:59:20 GMT +02:00 Athens, Beirut, Bucharest, Istanbul Subject: Tapestry 5 IoC Eagerloading and ordering of services Hi everyone, Is it possible to control the ordering of eagerloaded IoC services, especially if the services exist is separate but dependent IoC modules. I found an issue http://issues.apache.org/jira/browse/TAPESTRY-2267 that states these service proxies are claimed and loaded collectively, however no mention is made of how to ensure the correct ordering of these claimed services? Any help with this would be greatly appreciated. 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