Module org.elasticsearch.server
Class ProviderLookup<T>
java.lang.Object
org.elasticsearch.injection.guice.spi.ProviderLookup<T>
- All Implemented Interfaces:
Element
A lookup of the provider for a type.
Provider<PaymentService> paymentServiceProvider
= getProvider(PaymentService.class);- Since:
- 2.0
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Nested Class Summary
Nested Classes -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescription<T> TacceptVisitor(ElementVisitor<T> visitor) Accepts an element visitor.getKey()Returns the looked up provider.Returns an arbitrary object containing information about the "place" where this element was configured.voidinitializeDelegate(Provider<T> delegate) Sets the actual provider.
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Constructor Details
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ProviderLookup
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Method Details
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getSource
Description copied from interface:ElementReturns an arbitrary object containing information about the "place" where this element was configured. Used by Guice in the production of descriptive error messages.Tools might specially handle types they know about;
StackTraceElementis a good example. Tools should simply calltoString()on the source object if the type is unfamiliar. -
getKey
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acceptVisitor
Description copied from interface:ElementAccepts an element visitor. Invokes the visitor method specific to this element's type.- Specified by:
acceptVisitorin interfaceElement- Parameters:
visitor- to call back on
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initializeDelegate
Sets the actual provider.- Throws:
IllegalStateException- if the delegate is already set
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getProvider
Returns the looked up provider. The result is not valid until this lookup has been initialized, which usually happens when the injector is created. The provider will throw anIllegalStateExceptionif you try to use it beforehand.
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