Class CheckedProviders
- java.lang.Object
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- com.google.inject.throwingproviders.CheckedProviders
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public final class CheckedProviders extends Object
Static utility methods for creating and working with instances ofCheckedProvider
.- Since:
- 4.2
- Author:
- eatnumber1@google.com (Russ Harmon)
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static <T,P extends CheckedProvider<? super T>>
Pof(com.google.inject.TypeLiteral<P> providerType, T instance)
Returns aCheckedProvider
which always providesinstance
.static <T,P extends CheckedProvider<? super T>>
Pof(Class<P> providerType, T instance)
Returns aCheckedProvider
which always providesinstance
.static <T,P extends CheckedProvider<? super T>>
Pthrowing(com.google.inject.TypeLiteral<P> providerType, Class<? extends Throwable> throwable)
Returns aCheckedProvider
which always throws exceptions.static <T,P extends CheckedProvider<? super T>>
Pthrowing(Class<P> providerType, Class<? extends Throwable> throwable)
Returns aCheckedProvider
which always throws exceptions.
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Method Detail
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of
public static <T,P extends CheckedProvider<? super T>> P of(com.google.inject.TypeLiteral<P> providerType, @Nullable T instance)
Returns aCheckedProvider
which always providesinstance
.The provider type passed as
providerType
must be an interface. Calls to methods other thanCheckedProvider.get()
will throwUnsupportedOperationException
.- Parameters:
providerType
- the type of theCheckedProvider
to returninstance
- the instance that should always be provided
-
of
public static <T,P extends CheckedProvider<? super T>> P of(Class<P> providerType, @Nullable T instance)
Returns aCheckedProvider
which always providesinstance
.- Parameters:
providerType
- the type of theCheckedProvider
to returninstance
- the instance that should always be provided- See Also:
#of(TypeLiteral, T)
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throwing
public static <T,P extends CheckedProvider<? super T>> P throwing(com.google.inject.TypeLiteral<P> providerType, Class<? extends Throwable> throwable)
Returns aCheckedProvider
which always throws exceptions.This method uses the nullary (no argument) constructor of
throwable
to create a new instance of the givenThrowable
on each method invocation which is then thrown immediately.See
#of(TypeLiteral, T)
for more information.- Parameters:
providerType
- the type of theCheckedProvider
to returnthrowable
- the type of theThrowable
to throw- See Also:
#of(TypeLiteral, T)
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throwing
public static <T,P extends CheckedProvider<? super T>> P throwing(Class<P> providerType, Class<? extends Throwable> throwable)
Returns aCheckedProvider
which always throws exceptions.- Parameters:
providerType
- the type of theCheckedProvider
to returnthrowable
- the type of theThrowable
to throw- See Also:
throwing(TypeLiteral, Class)
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