On Feb 4, 2010, at 5:24 PM, Arul Dhesiaseelan wrote:
> Thanks Paul.
>
> Btw, I am not using any of those injection frameworks in this case.
OK, then constructor injection should work:
@Singleton
@Path("/")
public class ClusterResource {
public ClusterResource(@Context UriInfo uriInfo) {
....
}
}
However, since the class is a singleton what will get injected is a
reference to a thread local proxy, so if you access any methods of the
reference in the constructor, including toString, then you will get an
IllegalStateException. You need to access the reference when a request
is in scope.
Paul.
> Do you think the hack would still work in that case?
>
> I tried implementing your hack, but the injected component is still
> null inside the constructor. Do I need to register the component or
> do somthing? Here is what I tried.
>
> public class UriInjectionComponent implements UriInfo {
> @Context
> UriInfo uriInfo;
>
> public String getPath() {
> return uriInfo.getPath();
> }
> ......
>
> }
>
> And the resource looks:
>
> @Singleton
> @Path("/")
> public class ClusterResource {
> public ClusterResource(@Context UriInjectionComponent uriInfo) {
> ....
> }
> }
>
>
> -Arul
>
>
> On Feb 4, 2010, at 2:27 AM, Paul Sandoz wrote:
>
>> Hi Arul,
>>
>> Constructor injection of JAX-RS/Jersey artifacts when using Guice,
>> CDI or Spring is not currently supported. In such cases you need
>> to use field in conjunction with @PostConstruct or use a setter
>> method.
>>
>> One hacky way of doing this is to create a component with UriInfo
>> injected into a field, then inject that component into the
>> constructor. That component can implement the UriInfo interface and
>> defer to the injected UriInfo.
>>
>> Paul.
>>
>> On Feb 4, 2010, at 12:41 AM, Arul Dhesiaseelan wrote:
>>
>>> I see from the javadocs that Jersey does not inject UriInfo from a
>>> constructor. Is there any other way to get access to the
>>> URIBuilder inside the constructor?
>>>
>>> -Arul
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>
>
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