On Aug 10, 2009, at 1:31 PM, Sergiu Dumitriu wrote: > Vincent Massol wrote: >> On Aug 10, 2009, at 12:41 PM, Sergiu Dumitriu wrote: >> >>> Anamaria Stoica wrote: >>>> It looks like you can bind an instance to type in Guice. This is >>>> done either >>>> with Instance Bindings, >>>> @Provides Methods or Provider Bindings, depending on the complexity >>>> of the >>>> class. >>>> (http://code.google.com/p/google-guice/wiki/Bindings) >>>> >>>> All bindings are defined in a class that extends AbstractModule, >>>> this would >>>> be >>>> XWSocialModule in my code ( >>>> https://svn.xwiki.org/svnroot/xwiki/sandbox/gsoc/opensocial/xwiki-social-opensocial/src/main/java/org/xwiki/opensocial/social/XWSocialModule.java) >>>> . >>>> >>>> >>>> These modules are then passed as arguments to >>>> Guice.createInjector(), which >>>> builds the injector. >>>> In my application, the injector is build by >>>> GuiceServletContextListener ( >>>> http://svn.apache.org/repos/asf/incubator/shindig/trunk/java/common/src/main/java/org/apache/shindig/common/servlet/GuiceServletContextListener.java) >>>> This servlet takes the context parameters defined in my web.xml; >>>> these are: >>>> >>>> <context-param> >>>> <param-name>guice-modules</param-name> >>>> <param-value> >>>> org.apache.shindig.common.PropertiesModule: >>>> org.apache.shindig.gadgets.DefaultGuiceModule: >>>> org.apache.shindig.gadgets.oauth.OAuthModule: >>>> org.apache.shindig.common.cache.ehcache.EhCacheModule: >>>> org.xwiki.opensocial.social.XWSocialModule >>>> </param-value> >>>> </context-param> >>>> >>>> <listener> >>>> >>>> <listener- >>>> class>org.xwiki.container.servlet.XWikiServletContextListener</ >>>> listener-class> >>>> </listener> >>>> >>>> Now, all I need to do is bind the instance of PersonServiceXW after >>>> it has >>>> been initialized by XWiki's Component Manager. >>>> The binding will be done in XWSocialModule, using one of the >>>> instance >>>> binding methods (Instance Bindings, >>>> @Provides Methods or Provider Bindings). >>>> >>>> My questions are: >>>> 1. How do I make sure PersonServiceXW has been initialized already >>>> by the >>>> XWiki CM before binding it for Guice ? >>> List GuiceServletContextListener AFTER XWikiServletContextListener >>> in >>> web.xml. The servlet spec specifies that listeners are called in the >>> order they are encountered in web.xml, and >>> XWikiServletContextListener >>> is the one that starts our component manager. >> >> For the future: we should not use other servlet context listener >> other >> than the xwiki one. We need it to init the CM but once this is done >> everything else should be done with it. >> >> So ideally you should instead create an EventListener that listen for >> the application start event and initizalize shindig in there rather >> than use an environment-specific servlet context listener. > > I'm not sure, but I think that Shindig works this way, there's nothing > we can do about it.
Just checked http://svn.apache.org/repos/asf/incubator/shindig/trunk/java/common/src/main/java/org/apache/shindig/common/servlet/GuiceServletContextListener.java It doesn't do much, just init Guice in a few lines. Thanks -Vincent >> -Vincent >> >>>> 2. How do I get the initialized PersonServiceXW instance from >>>> XWSocialModule? >>> com.xpn.xwiki.web.Utils.getComponent(PersonServiceXW.class) _______________________________________________ devs mailing list [email protected] http://lists.xwiki.org/mailman/listinfo/devs
