Package com.google.inject.spi
Class InjectionRequest<T>
java.lang.Object
com.google.inject.spi.InjectionRequest<T>
- All Implemented Interfaces:
Element
A request to inject the instance fields and methods of an instance. Requests are created
explicitly in a module using
requestInjection()
statements:
requestInjection(serviceInstance);
- Since:
- 2.0
- Author:
- mikeward@google.com (Mike Ward)
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescription<R> R
acceptVisitor
(ElementVisitor<R> visitor) Accepts an element visitor.void
Writes this module element to the given binder (optional operation).boolean
Returns the instance methods and fields ofinstance
that will be injected to fulfill this request.Returns the instance that injection is being requested on.Returns an arbitrary object containing information about the "place" where this element was configured.getType()
int
hashCode()
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Constructor Details
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InjectionRequest
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Method Details
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getSource
Description copied from interface:Element
Returns 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;
StackTraceElement
is a good example. Tools should simply calltoString()
on the source object if the type is unfamiliar. -
getInstance
Returns the instance that injection is being requested on. This may be null for injection requests returned from an Injector, to allow the injector to reclaim memory. -
getType
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getInjectionPoints
Returns the instance methods and fields ofinstance
that will be injected to fulfill this request.- Returns:
- a possibly empty set of injection points. The set has a specified iteration order. All fields are returned and then all methods. Within the fields, supertype fields are returned before subtype fields. Similarly, supertype methods are returned before subtype methods.
- Throws:
ConfigurationException
- if there is a malformed injection point on the class ofinstance
, such as a field with multiple binding annotations. The exception'spartial value
is aSet<InjectionPoint>
of the valid injection points.
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acceptVisitor
Description copied from interface:Element
Accepts an element visitor. Invokes the visitor method specific to this element's type.- Specified by:
acceptVisitor
in interfaceElement
- Parameters:
visitor
- to call back on
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applyTo
Description copied from interface:Element
Writes this module element to the given binder (optional operation). -
equals
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hashCode
public int hashCode()
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