Dear all,
Firstly, sorry for my bad English as it's not my native.
I started to learnt to use Guice in my project recently.
My question is: How can I inject a value known by dependent to the
dependency ?
Let's say I have to write a custom web browser using Apache HttpClient.
> public class MyHttpClientImpl implements MyHttpClient {
> HttpClient client;
> ResponseHandler<String> responseHandler;
> @Inject
> public MyHttpClientImpl(ResponseHandler<String> responseHandler) {}
> }
class MyResponseHandler implements ResponseHandler<String>{
> void doStuff(){}
> @override
> public String handleResponse(HttpResponse response){
> }
> .....
> }
It's perfect. However, in handleResponse() I need to access to
MyHttpClientImpl for some action. For example, when I receive a HTTP 302
error code, I would like to redirect my client to the new page.
Without DI, I just need to create a constructor
> MyResponseHandler(MyHttpClient myHttpClient) {
> this.myHttpClient = myHttpClient;
> }
and call it in MyHttpClientImpl:
> ResponseHandler<String> responseHandler = new MyResponseHandler(this);
How can I do it with Guice?
I cannot declare MyHttpClientImpl as @Singleton, as I need lots instance of
this class (ex for multiple tabs)
Currently, I have to manually call responseHandler.setHttpClient(this) in
MyHttpClient, but for sure it's not good idea.
How can I do ?
Any help are appreciated.
Thanks
Tuan
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