Hi Jens,
Thanks for your suggestions but the caching I'm referring to is the
inbuilt cache Tapestry uses for the ComponentAssemblers. Currently (or
in 5.2.6) it caches these ComponentAssemblers based on classname and
Locale.
I need to cache these based on classname, locale and another-key. This
is because I have different Components that get rendered based on
another-key.
Specifically I want to advise the methods:
getAssembler(String className, Locale locale)
void objectWasInvalidated()
and replace the caching with my own.
Hope that makes sense. It feels like I should be able to advise these
service methods but as I said my advice is not getting invoked. Any ideas?
Thanks,
Jack
On 05/09/11 12:10, Jens Breitenstein wrote:
Hi Jack!
I wonder what kind of page data you want to cache which is not
provideable by a service?
a) why not using a spring singleton or a plain java static?
b) You can bind a service implementation (without interface) in your
app module and inject it to your page if you're not using a spring
service layer, for example.
c) in case your data is considerably volatile you can try something
like OSCache?
d) Hopefully I am correct, but in case you write something like this
in your page class:
private final YourType _var = whatEverService.getData();
the call to getData() is only excuted once (first time your page
is ever used).
Sorry I did not exactly answer your question, but maybe moving the
code to a service (away from the page class itself) will also solve
your problem without advising the PageLoader and a chance for a cache
related unit test?
Jens
Am 05.09.11 11:58, schrieb jack:
Hi All,
I'm trying to advise the PageLoader service because we have some
custom page caching requirements. I've tried the following but it
doesn't seem to get invoked. Is it even possible to advise this
service? If so can anyone tell me what I'm doing wrong?
@Advise(serviceInterface = ComponentAssemblerSource.class)
@Match("PageLoader")
public static void siteKeyPageCache(MethodAdviceReceiver receiver) {
MethodAdvice advice = new MethodAdvice() {
public void advise(Invocation invocation) {
...
}
};
}
Many thanks,
Jack
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