Ahh, ok, well to get any service injected into a page/componet the
annotation is as follows:
@InjectObject("service:whatever.Service")
You'll have to look through the tapestry xml files to find the exact
name of the service and module most likely "tapestry.something". There
is also a way to inject engine services (take a look at the code for
ExternalLink to find an example (injects the ExternalService enging
service. I'm not sure if the state manager is an engine service or
not.
-Nick
On 9/17/05, Travis McLeskey <[EMAIL PROTECTED]> wrote:
> Hi Nick,
>
> Thanks for the response. Sorry, I didn't phrase my email right...I know
> how to get references to Application State Objects in java code, but I
> was trying to access the ApplicationStateManager so I could
> programmatically find out whether a named ASO already existed (to avoid
> unnecessarily creating a session). (The "state:" binding does this in
> XML, but getting the result into java isn't an ideal solution.) I
> finally figured out how to do it:
>
> To inject the ApplicationStateManager into a Tapestry component, add:
>
> <inject property="appStateMgr"
> object="service:tapestry.state.ApplicationStateManager" />
>
> to the component specification. I don't know the annotation equivalent.
>
>
> This is what I was trying to do:
> ----------------------------------------------------------
> I have an ASO, LoginASO (named "loginASO" in the ASM), containing the
> method:
>
> boolean isLoggedIn()
>
> I wanted to create an isUserLoggedIn() method in my Tapestry component
> that wouldn't create LoginASO if it didn't already exist. I added the
> <inject> tag listed above, then added the following to my java
> component class:
>
> public abstract ApplicationStateManager getAppStateMgr();
>
> public boolean isUserLoggedIn() {
> if( !getAppStateMgr().exists("loginASO") )
> return false;
> return
> ((LoginASO)getAppStateMgr().get("loginASO")).isLoggedIn();
> }
> ----------------------------------------------------------
>
> Thanks,
> Travis
>
>
>
> On Sep 17, 2005, at 6:23, Nick Stuart wrote:
>
> > Ok, so what exactly are you trying to do Travis? If I am reading it
> > correctly you simply would to inject a state object (say a user class
> > that holds values for a visitor to your site).
> >
> > If this IS what you want to do look below:
> >
> > First, all your ASO are simple POJO's, nothing speical about them, so
> > make your User class and call it good. Next up is configuring hivemind
> > to know about it.
> >
> > In your hivemodule.xml (if you dont have one, you need one in your
> > META-INF folder) you need to add the following few lines:
> > ....
> > <contribution configuration-id="tapestry.state.ApplicationObjects">
> > <state-object name="user" scope="session">
> > <create-instance class="User"/>
> > </state-object>
> > </contribution>
> > ....
> > You can play with the scope and name values to fit your needs. Thats
> > all you need to do in hivemind.
> >
> > Next, in your page/component class (doesnt matter which) you do the
> > following:
> >
> > @InjectState("user")
> > public abstract User getUser();
> >
> > There are similar xml elements for injecting state as well (dont use
> > them much so I cant remember them off the top of my head). But
> > anyways, thats the full process to adding a state object to your
> > application and accessing them in your page.
> >
> > -Nick
> >
> > On 9/16/05, Travis McLeskey <[EMAIL PROTECTED]> wrote:
> >> I misunderstood what was going on here. I thought you were injecting
> >> the ApplicationStateManager into a Tapestry page.
> >>
> >> So: how do you inject the ApplicationStateManager into a Tapestry
> >> page?
> >> I see that Tapestry's StateBindingFactory gets a reference to the
> >> ApplicationStateManager with the line
> >>
> >> <set-object property="applicationStateManager"
> >> value="infrastructure:applicationStateManager"/>
> >>
> >> in tapestry.bindings.xml.
> >>
> >> I don't understand why this isn't documented...am I the only one who
> >> wants to access Application State Objects in the Java class?
> >>
> >> Any help would be appreciated!
> >>
> >> Thanks,
> >> Travis
> >>
> >>
> >>
> >>
> >> On Sep 16, 2005, at 9:21, Travis McLeskey wrote:
> >>
> >>> For those of us new to HiveMind, where does the <set-service> element
> >>> need to go in the HiveMind config file? I'm just trying to access my
> >>> ASO in java code.
> >>>
> >>> Thanks,
> >>> Travis
> >>>
> >>>
> >>>
> >>>> Pete <pertl <at> gmx.org> writes:
> >>>>
> >>>>> does somebody know how to inject 'myState' into the marked
> >>>> 'MyFilter'
> >>>>> property 'injectedState' ????
> >>>>
> >>>> Try:
> >>>> <set-service
> >>>> property="appStateMgr"
> >>>> value="tapestry.state.ApplicationStateManager"/>
> >>>>
> >>>> class MyFilter {
> >>>> ApplicationStateManager appStateMgr;
> >>>>
> >>>> MyState getInjectedState() {
> >>>> return (MyState)appStateMgr.get("myState");
> >>>> }
> >>>> }
> >>>
> >>>
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> >>>
> >>
> >>
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> >>
> >
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>
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