On May 20, 2010, at 2:24 PM, Martin Giese wrote:
> On 05/20/2010 02:22 PM, Paul Sandoz wrote:
>>
>> On May 20, 2010, at 1:57 PM, Martin Giese wrote:
>>
>>> Hi,
>>>
>>> I have a nice litte web app with a main Application class (in
>>> fact, it
>>> extends PackagesResourceConfig) and a few root resources.
>>>
>>> Now I have put some configuration information into web.xml in
>>> <init-param> elements. It seems that I need a ServletContext or
>>> ServletConfig to get at the initialization parameters. I know I
>>> can use
>>> @Context to inject these into the root resource classes, but that
>>> means
>>> I get the values when a request is processed. I would like to get
>>> them
>>> at initialization, i.e. in the constructor of the Application
>>> class. Is
>>> that possible?
>>>
>>
>> Yes, it should be possible to do the following:
>>
>> public MyApp extends Application {
>> @Context ServletConfig sc;
>> }
> I tried that. When I read sc in the constructor, it's null.
>
Yes, that is because field injection occurs after construction. You
need to use a @PostConstruct annotated method to access such values.
Paul.