On Sat, Nov 22, 2008 at 6:40 AM, <[EMAIL PROTECTED]> wrote:
> Ok, let me summarize how I understood the IOC documentation:
>
> 1. Inside AppModule, every public method that exists is called when the
> webapplication is loaded for the first time.
>
> 2. every method that starts with build..... will generate an IOC service with
> the name followed by the keyword "build."
>
> Example:
>
> "public buildMyService ()" will lead to a new IOC service called MyService.
>
>
> 3. if such a method contains variables, services with the variables' names
> are searched inside the IOC registry...and are automatically injected into
> the service. The @Inject is not necessary sometimes (if it is a "shadow
> service").
>
> Example 1:
We're talking about parameters here, parameters to the method, not
simple variables.
Please check into the documentation; generally you just need a service
interface and an implementation, with dependencies provided via the
implementation's constructor parameters. Service builder method fill
a specialized niche.
>
> public buildMyService (final Logger log) // injects the IOC Service with the
> name "Logged" automatically which is a shadow service, otherwise it would be:
Logger is special; it is a resource available to the service, rather
than a dependency (another service). Again, check the documentation.
>
> public buildMyService (@InjectService final Logger log)
>
> Example 2:
>
> public buildMyService (final Logger log, final RequestGlobals requestGlobals)
>
> would inject the shadow service RequestGlobals.
Yes, because there is exactly ONE service which implements this
interface. No ambiguity, so no problem. The implementation of the
service doesn't matter (i.e. that it is a shadow service ... in fact,
it is not, Request is a property shadow of RequestGobals.request;
RequestGlobals is a service with scope "perthread" ... none of this is
relevant to injection!).
>
> Example 3:
>
> public buildMyService (final Logger log, final RequestGlobals requestGlobals,
> @InjectService ThreadLocale threadLocale)
This would fail; you use @InjectService("ServiceId") when injecting
just by type doesn't work (because more than one service implements
the interface). In this example, omit the @InjectService annotation
and it will work.
>
> would inject the shadow service RequestGlobals and the normal IOC service
> threadLocale
Again, services are services; scope and implementation are details
about the implementation of the service that are not relevant to the
user of the service.
>
> Is this how it works?
>
> Thanks!
>
> Toby
>
> -------- Original-Nachricht --------
>> Datum: Fri, 21 Nov 2008 08:51:52 -0800
>> Von: "Howard Lewis Ship" <[EMAIL PROTECTED]>
>> An: "Tapestry users" <users@tapestry.apache.org>
>> Betreff: Re: @InjectService("RequestGlobals")
>
>> Do you see what your doing for the Logger? Do the same thing.
>>
>> On Fri, Nov 21, 2008 at 5:57 AM, <[EMAIL PROTECTED]> wrote:
>> > How do you inject RequestGlobals inside of AppModule ?
>> >
>> > I have tried:
>> >
>> > public RequestFilter buildTimingFilter(final Logger log)
>> > {
>> > return new RequestFilter()
>> > {
>> >
>> >
>> > public boolean service(Request request, Response response,
>> > RequestHandler handler)
>> > throws IOException
>> > {
>> >
>> >
>> > @InjectService("RequestGlobals") RequestGlobals
>> requestGlobals;
>> > // disallowed for this location
>> >
>> >
>> > Inside of:
>> >
>> > public boolean service(Request request, Response response,
>> > @InjectService("RequestGlobals") RequestGlobals
>> requestGlobals,
>> > RequestHandler handler)
>> > throws IOException
>> >
>> > it does not work because the service method needs to have 2 parameters
>> only.....
>> >
>> >
>> > Inside of here:
>> >
>> > public RequestFilter buildTimingFilter(final Logger log)
>> > {
>> > return new RequestFilter()
>> > {
>> >
>> > @InjectService("RequestGlobals") RequestGlobals
>> requestGlobals,
>> >
>> > it is also disallowed.
>> >
>> >
>> > The same here:
>> >
>> > public RequestFilter buildTimingFilter(final Logger log)
>> > {
>> >
>> > @InjectService("RequestGlobals") RequestGlobals requestGlobals,
>> >
>> >
>> > or here:
>> >
>> >
>> > @InjectService("RequestGlobals") RequestGlobals requestGlobals,
>> >
>> > public RequestFilter buildTimingFilter(final Logger log)
>> > {
>> >
>> >
>> > I can not find any other places to put this @InjectService annotation.
>> >
>> > Any help is appreciated....
>> >
>> > Thanks!
>> >
>> > Toby
>> >
>> >
>> >
>> >
>> > ---------------------------------------------------------------------
>> > To unsubscribe, e-mail: [EMAIL PROTECTED]
>> > For additional commands, e-mail: [EMAIL PROTECTED]
>> >
>> >
>>
>>
>>
>> --
>> Howard M. Lewis Ship
>>
>> Creator Apache Tapestry and Apache HiveMind
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: [EMAIL PROTECTED]
>> For additional commands, e-mail: [EMAIL PROTECTED]
>
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>
>
--
Howard M. Lewis Ship
Creator Apache Tapestry and Apache HiveMind
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