I'm not sure if there is a more straightforward way, but one way is to store
the servlet into the request and then pull out the ServletContext from that.
So make a subclass of org.apache.tapestry.ApplicationServlet:
public class MyApplicationServlet extends ApplicationServlet
{
protected void doService(HttpServletRequest request,
HttpServletResponse response) throws IOException, ServletException
{
request.setAttribute("servlet", this);
super.doService(request, response);
}
}
Set it up in web.xml:
<servlet>
<servlet-name>app</servlet-name>
<servlet-class>path.to.MyApplicationServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
Then pull out the registry in your base page:
public Registry getRegistry()
{
return (Registry) ((MyApplicationServlet)
getRequestCycle().getInfrastructure().getRequest().getAttribute("servlet")).getServletContext().getAttribute("org.apache.tapestry.Registry:app");
}
Ben
-----Original Message-----
From: Numa Schmeder [mailto:[EMAIL PROTECTED]
Sent: Friday, February 09, 2007 1:08 PM
To: Tapestry users
Subject: Re: Migration to Tap4, accessing the hivemind registry without
injection
I knew that, but I don't know how to access a context from a Page or
from the request cycle.
How can you get the servlet context?
Thanks,
Numa
Le 9 févr. 07 à 19:49, Shing Hing Man a écrit :
> A singleton has the advantage of letting you access
> the registry in non-web pages.
> In case you did not know,
> the registry is created in the ApplicationServlet and
> stored as a context parameter.
>
> // context is the servlet context
> Registry registry = (Registry) context
>
> .getAttribute(ApplicationServlet.REGISTRY_KEY_PREFIX_PUBLIC
> +
> "(the name of ApplicationServlet given in web.xml");
>
>
> Shing
>
>
> --- Numa Schmeder <[EMAIL PROTECTED]> wrote:
>
>> Nop, but isn't an easier way to just access the
>> registry?
>>
>> Le 9 févr. 07 à 19:33, Shing Hing Man a écrit :
>>
>>> Have you considered implementing the HiveMind
>> registry
>>> as a singleton ?
>>>
>>> The zebra-hivemind subproject in Zebra does
>> exactly
>>> that.
>>> http://zebra.berlios.de/
>>>
>>> Shing
>>>
>>>
>>>
>>>
>>> --- Numa Schmeder <[EMAIL PROTECTED]> wrote:
>>>
>>>> Hello,
>>>>
>>>> I am migrating an application from tap3 to tap4,
>> I
>>>> am hitting a lot
>>>> of problem.
>>>> One of those is getting a reference to the
>> hivemind
>>>> registry from
>>>> java without using injection.
>>>>
>>>> I have a base page who used to provide a
>> DAOFactory
>>>> to all my
>>>> subclassing pages, now the DAOFactory is in the
>>>> hivemind registry.
>>>> I don't want to go to each page specification to
>>>> inject the DAO
>>>> Factory and I can't use annotations. So I would
>>>> like to access the
>>>> hivemind registry programmatically.
>>>> How can I do, I have checked many docs but
>> couldn't
>>>> find a clue.
>>>>
>>>> Could someone help me please!
>>>>
>>>> Thanks
>>>>
>>>> Numa
>>>>
>>>>
>>>
>>
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>>>
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>>>
>>>
>>>
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