On 15 Jan 2014, at 08:41, Jochen Wiedmann <[email protected]> wrote:
>
> Thanks very much, but could someone help me by fixing the following code (I
> hope the intention is clear):
>
> private void bindList(Binder pBinder) {
> final List<?> list = new ArrayList<Object>();
> final Provider<O extends List> provider = new Provider<O>(){
> public O get() {
> return list;
> }
> };
> pBinder.bind(List.class).toProvider((com.google.inject.Provider<?
> extends List>) provider);
Does your provider implement com.google.inject.Provider? If it doesn’t - for
example, say it just implements javax.inject.Provider - then you should use:
pBinder.bind(List.class).toProvider(Providers.guicify(provider));
BTW, if you don’t want to write lots of Provider classes then you can also use
@Provides methods in your module:
https://code.google.com/p/google-guice/wiki/ProvidesMethods
> }
>
> Additionally, is it possible to have something like
>
> private <O> void bind(Binder pBinder, Class<O> pInterfaceClass, O
> pImplementation) {
> // ?
Sure:
pBinder.bind(pInterfaceClass).toInstance(pImplementation);
Note that this will automatically do field and setter injection of any members
annotated with @Inject in the instance - if you don’t want this then use:
pBinder.bind(pInterfaceClass).toProvider(Providers.of(existingInstance));
You can find more binding examples at
http://google-guice.googlecode.com/git/javadoc/com/google/inject/Binder.html
and https://code.google.com/p/google-guice/wiki/Bindings
> };
>
> Jochen
>
>
>
>
> On Friday, January 10, 2014 1:46:15 PM UTC+1, Stuart McCulloch wrote:
> On 10 Jan 2014, at 11:58, Fred Faber <[email protected]> wrote:
>
> > binder.bind(IFoo.class).toProvider<https://google-guice.googlecode.com/git/javadoc/com/google/inject/binder/LinkedBindingBuilder.html#toProvider(com.google.inject.Provider<?
> >
> > extends T>)>(myProvider) does this.
>
> and if you have existing javax.inject.Provider instances you can use
> Providers.guicify(myStandardProvider) to convert them to
> com.google.inject.Provider
>
>
> http://google-guice.googlecode.com/git/javadoc/com/google/inject/util/Providers.html
>
>
> bind( IFoo.class ).toProvider( Providers.guicify( myStandardProvider
> ) );
>
> > On Fri, Jan 10, 2014 at 4:50 AM, Jochen Wiedmann
> > <[email protected]>wrote:
> >
> >>
> >> Hi,
> >>
> >> I am currently converting an existing application to Guice. To simplify
> >> the migartion, I'd like to do somehing like
> >>
> >>
> >> Foo someInstance;
> >> Provider<Foo> myProvider = new Provider<Foo>(){
> >> Foo get() { return someInstance; }
> >> }
> >>
> >> binder.bind(IFoo.class).toProviderInstance(myProvider);
> >>
> >> Is that possible?
> >>
> >> Thanks,
> >>
> >> Jochen
> >>
> >>
> >>
> >> --
> >> You received this message because you are subscribed to the Google Groups
> >> "google-guice" group.
> >> To unsubscribe from this group and stop receiving emails from it, send an
> >> email to [email protected].
> >> To post to this group, send email to [email protected].
> >> Visit this group at http://groups.google.com/group/google-guice.
> >> For more options, visit https://groups.google.com/groups/opt_out.
> >>
> >
> > --
> > You received this message because you are subscribed to the Google Groups
> > "google-guice" group.
> > To unsubscribe from this group and stop receiving emails from it, send an
> > email to [email protected].
> > To post to this group, send email to [email protected].
> > Visit this group at http://groups.google.com/group/google-guice.
> > For more options, visit https://groups.google.com/groups/opt_out.
>
>
> --
> You received this message because you are subscribed to the Google Groups
> "google-guice" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to [email protected].
> To post to this group, send email to [email protected].
> Visit this group at http://groups.google.com/group/google-guice.
> For more options, visit https://groups.google.com/groups/opt_out.
--
You received this message because you are subscribed to the Google Groups
"google-guice" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/google-guice.
For more options, visit https://groups.google.com/groups/opt_out.
