Thanks for your help. I've read these pages and I better understand how it works. I've to try this further now... You said I could post my Interceptor to the list, but for the moment it doesn't really exist... It is only an idea to have an Interceptor that belongs to my default Interceptor stack and that give acces to before() and after() methods in all Action whatever the method that is called in the Action. So I could add some work to do before and/or after the execute() method (or create() or update() or read()...) if needed without having to modify the Interceptors discribed in the struts.xml for the specific action. All actions could extend these before() and after() methods only if needed. One other solution would be to describe a "mother" Action class that would call before() and/or after() methods of the Action class called during the execute() method... not sure that it is very clear... Maybe there is a better way?
-----Message d'origine----- De : David Evans [mailto:[EMAIL PROTECTED] Envoyé : mardi 26 septembre 2006 18:42 À : Struts Users Mailing List Objet : Re: [Strust2] how does Interceptor work? Hello, These webwork and xwork doc pages may help: http://wiki.opensymphony.com/display/XW/Interceptors http://www.opensymphony.com/webwork/api/com/opensymphony/xwork/ActionInvocation.html http://www.opensymphony.com/webwork/api/com/opensymphony/xwork/ActionProxy.html Passed in to your interceptor's intercept method is an ActionInvocation. This object has a getProxy() method, which returns an ActionProxy. The ActionProxy has a getMethod() method, which will return the method name as a String. So you'll need to call those methods and then use reflection to call your beforeXXX and afterXXX methods. In your intercept method the invocation.invoke() line is what continues down the chain of interceptors and finally to the Action's method. Anything you do before the invocation.invoke() is before the action execution, anything after invocation.invoke is after the action execution. It is also after the result execution, so for your case it seems you'd have to setup the PreResultListener, and put the ActionProxy method lookup and reflective call bit in there as well. If you post your Interceptor to the list, that might help also. Dave On Tue, 2006-09-26 at 12:11 +0200, Labey Sébastien wrote: > Hi, I'm new to Struts2 and i don't really understand how does Interceptor > technique work. > I have made my own interceptor that implements Interceptor interface. I place > it in struts.xml with my action. It's OK, before invoking my action, i go > through my interceptor in the intercept() method. > But do all interceptor classes go only through intercept() method or is there > a solution to go through another method name? My need is to go through a > beforeXXX() method depending on the name of the méthod described in > struts.xml for my current navigation. > > My second question is how to go through an interceptor after the action has > been executed but before "forwarding" to jsp? I read in documentation that my > interceptor has to implements PreResultListener interface, so i made it, but > nothing appens. I dont go through the beforeResult() method, neither the > intercept() method... Is it possible to have only one interceptor for both > the beforeXXX() and the afterXXX() methods? > > All your helps would be great. Thanks in advance > > Sebastien > > > Sébastien LABEY > > Division Immobilier > R&D IKOS > > 04.72.18.47.07 > <mailto:[EMAIL PROTECTED]> [EMAIL PROTECTED] > 20, chemin du Randin - B1 - 69130 Ecully > P Avant d'imprimer, ayez une pensée pour notre environnement > > * > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
