Advise the call to the constructor of DefaultCacheResolverFactory with around
advice, catch the exception, then return what you want to. Note: don't use an
"execution" pointcut expression -- you want a "call".
> On Aug 8, 2019, at 9:20 AM, Eric B <ebenza...@gmail.com> wrote:
>
> I'm using the JCache API, in which a design decision made by the JSR-107 team
> in implementing the Reference Implementation is causing me a significant
> headache. The class in question is:
> org.jsr107.ri.annotations.cdi.CacheLookupUtil from package
> org.jsr107.ri:cache-annotations-ri-cdi:1.1.0.
>
> This is the layout of the class:
>
> public class CacheLookupUtil extends
> AbstractCacheLookupUtil<InvocationContext> {
> @Inject
> private BeanManagerUtil beanManagerUtil;
>
> private CacheKeyGenerator defaultCacheKeyGenerator = new
> DefaultCacheKeyGenerator();
> private CacheResolverFactory defaultCacheResolverFactory = new
> DefaultCacheResolverFactory();
>
> ...
> ...
> }
>
> My problem is the assignment of the defaultCacheResolverFactory, or to be
> even more specific the construction of the DefaultCacheResolverFactory()
> without arguments when initializing the object. The default constructor used
> throws an exception which is extremely difficult to catch given that the DI
> framework is instantiating the object.
>
> Is there anyway I can use AspectJ to modify that assignment? Ideally, I
> would like to prevent the construction of the DefaultCacheResolverFactory
> with no args, and replace it with a call to new
> DefaultCacheResolverFactory(CacheManager) instead.
>
> So my issue is not just being able to assign the field (which I would be able
> to do in a CacheLookupUtil constructor advice, but also prevent the
> construction of the DefaultCacheResolverFactory().
>
> Can you think of any kind of pointcut(s) that I could use to catch that
> condition? I figure I need an Around advice against a pointcut which picks
> up the constructor of the DefaultCacheResolverFactory (so I can return my own
> object instead), but from what I understand I cannot use around with the
> initialization pointcut.
>
> Any suggestions what I can try?
>
> Thanks,
>
> Eric
>
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