Guice injector.getInstance throwing Configuration exception

Question

I am creating an instance of Predicate using a provider.

@Provides
@Singleton
@Named("RecordFilters")
public Predicate<ImmutablePair<AbstractRecord, StreamRecord>> getAllFilters() {

    BackfillDataFilter backfillDataFilter = new BackfillDataFilter();
    DummyUpdateFilter dummyUpdateFilter = new DummyUpdateFilter();
    return input -> dummyUpdateFilter.test(input) && backfillDataFilter.test(input);
}

When i am trying to get its instance using injector.getInstance(Predicate.class) or injector.getInstance(Key.get(Predicate.class, Names.Named("RecordFilters"))

I am getting an exception.

com.google.inject.ConfigurationException: Guice configuration errors:
  No implementation for java.util.function.Predicate was bound.
  while locating java.util.function.Predicate

Please suggest.

score 2 · Accepted Answer · edited May 23 '17 at 12:16

2

Try as described in this answer:

injector.getInstance(Key.get(new TypeLiteral<Predicate<ImmutablePair<AbstractRecord, StreamRecord>>>(){})

edited May 23 '17 at 12:16

Community

1
1

answered Jan 07 '17 at 18:19

Dmitry Gorkovets

2,208
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1

This is missing the `Names.named()` part from the OP. It could be written `new Key>>(Names.named("RecordFilters")){}` – Tavian Barnes Jan 08 '17 at 00:56
Thanks. `new Key>>(Names.named("RecordFilters")){}` Works for me. – Avinash Kumar Jan 08 '17 at 14:57

Guice injector.getInstance throwing Configuration exception

1 Answers1