Just an (ugly) idea... If you can send the DWR requests to a Tapestry service that will then forward or include the normal DWR servlet output, it should work.
http://wiki.apache.org/tapestry/TapestryFasttrackForStrutsProgrammers has some code that creates a component that can include jsps, servlets, e.t.c. So, try building an IEngineService that uses that... BTW, how does the dwr creator for hivemind look like? is it possible that it finds its way into the tapestry wiki? On Thu, Jun 19, 2008 at 8:13 PM, Srinivas Yermal <[EMAIL PROTECTED]> wrote: > Hi All, > > I am creating a huge dojo widget which needs to access some data on the > server side as objects and I am trying to use DWR for remoting some of my > calls. Pardon my ignorance, but I am not sure whether this is allowed in the > tapestry world. So I set forth to try to integrate DWR into my tapestry app. > > My need is to have access to the visit object and other application state > objects from within the DWR created objects. So I extended the tapestry > ApplicationServlet in order to get access to the hivemind Registry and > stored it into the servlet context. Next I wrote a separate DWR creator for > hivemind and within the creator I am accessing the registry to get to the > hivemind service. Everything works well until here. I get the service from > the registry and the ApplicationStateManager is set into the service. Now > within the service when I try to access the visit object using > (Visit)appStateManager.get("visit"); - I get the following exception. > > java.lang.NullPointerException: Property 'webRequest' of <OuterProxy for > tapestry.globals.RequestGlobals(org.apache.tapestry.services.RequestGlobals)> > is null. > at > $WebRequest_11aa1b3d84b._targetServiceProperty($WebRequest_11aa1b3d84b.java) > at $WebRequest_11aa1b3d84b.getSession($WebRequest_11aa1b3d84b.java) > at $WebRequest_11aa1b3d82f.getSession($WebRequest_11aa1b3d82f.java) > at > org.apache.tapestry.engine.state.SessionScopeManager.getSession(SessionScopeManager.java:48) > at > org.apache.tapestry.engine.state.SessionScopeManager.get(SessionScopeManager.java:64) > at > $StateObjectPersistenceManager_11aa1b3d845.get($StateObjectPersistenceManager_11aa1b3d845.java) > at > org.apache.tapestry.engine.state.StateObjectManagerImpl.get(StateObjectManagerImpl.java:50) > at > org.apache.tapestry.engine.state.ApplicationStateManagerImpl.get(ApplicationStateManagerImpl.java:60) > at > $ApplicationStateManager_11aa1b3d807.get($ApplicationStateManager_11aa1b3d807.java) > at > $ApplicationStateManager_11aa1b3d808.get($ApplicationStateManager_11aa1b3d808.java) > at > com.eureka.engine.dwrtest.DWRTestService.getVisitObject(DWRTestService.java:24) > at > com.eureka.engine.dwrtest.DWRTestService.doSomething(DWRTestService.java:28) > > I guess the reason may be that the tapestry servlet doesnot get to bless the > request and create tapestry specific webrequest, but I am at a loss of what > I should do going forward. Any light on this would be greatly appreciated. > > Regards, > Srini. > -- Andreas Andreou - [EMAIL PROTECTED] - http://blog.andyhot.gr Tapestry / Tacos developer Open Source / JEE Consulting --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
