Yes please :)
Please look into whether this is possible, and I will try to implement
the callback on my end.
Thanks,
Gili
On 05/12/2013 1:23 PM, John Wells wrote:
> I'm also wondering if there isn't some way to make the JIT resolver
> run for lookup failures as well, and that way you wouldn't have to do
> any wrapping. Sounds like a nice idea for a mini-feature.
>
> On 12/5/2013 1:16 PM, John Wells wrote:
>> There isn't. In fact we have a callback that you can use for exactly
>> this sort of purpose:
>>
>> https://hk2.java.net/2.2.0-b25/apidocs/org/glassfish/hk2/api/JustInTimeInjectionResolver.html
>>
>>
>> You can write a simple JIT resolver that does exactly what you are
>> asking for.
>>
>> This will not work for a direct lookup, so you may need something
>> else for that case. It'd be fairly easy to write a small wrapper
>> around lookup that would try to add the given class if the underlying
>> service locator could not find the service.
>>
>> On 12/5/2013 1:09 PM, cowwoc wrote:
>>> John,
>>>
>>> I just had a thought: why do we need hk2-inhabitant-generator at
>>> all? When someone tries to inject a class and a binding is not
>>> found, couldn't HK2 automatically add a binding and retry the
>>> operation if the class is annotated with @Service? Meaning, what
>>> prevents you from adding the binding on-the-fly at runtime?
>>>
>>> Thanks,
>>> Gili
>>>
>>> On 04/12/2013 6:17 PM, cowwoc wrote:
>>>> Thank you. Filed https://java.net/jira/browse/HK2-165
>>>>
>>>> Gili
>>>>
>>>> On 04/12/2013 5:58 PM, John Wells wrote:
>>>>> To use @Service you must
>>>>>
>>>>> a) run the hk2-inhabitant-generator as part of your build in
>>>>> order to produce the META-INF/hk2-locator/default file. You can
>>>>> look at this file to see if it looks reasonable (it should have
>>>>> your services in there)
>>>>>
>>>>> b) Ensure that when you boot hk2 you tell it to read those files
>>>>> in (it does not do this automatically). The easiest way to do
>>>>> this is with this:
>>>>>
>>>>> https://hk2.java.net/2.2.0-b25/apidocs/org/glassfish/hk2/utilities/ServiceLocatorUtilities.html#createAndPopulateServiceLocator%28%29
>>>>>
>>>>>
>>>>> I do not currently monitor stackOverflow for hk2, but I will now!
>>>>>
>>>>> On 12/4/2013 5:37 PM, cowwoc wrote:
>>>>>> Hi,
>>>>>>
>>>>>> I've got something along the lines of:
>>>>>>
>>>>>> @Service
>>>>>> public class TestClass
>>>>>> {
>>>>>> @Inject
>>>>>> public TestClass()
>>>>>> {
>>>>>> }
>>>>>> }
>>>>>>
>>>>>> public class MyApplication extends ResourceConfig
>>>>>> {
>>>>>> @Inject
>>>>>> public MyApplication(ServiceLocator serviceLocator)
>>>>>> {
>>>>>> TestClass test = serviceLocator.getService(TestClass.class);
>>>>>> }
>>>>>> }
>>>>>>
>>>>>> but serviceLocator.getService(TestClass.class) returns null. What
>>>>>> am I missing? Isn't HK2 supposed to auto-bind @Service-annotated
>>>>>> classes somehow?
>>>>>>
>>>>>> PS: Do you monitor the "hk2" tag on Stackoverflow? I think it's a
>>>>>> more efficient way of handling recurring questions.
>>>>>>
>>>>>> Thanks,
>>>>>> Gili
>>>>>
>>>>
>>>
>>
>