Package org.elasticsearch.common.inject.spi

Class InjectionRequest<T>

org.elasticsearch.common.inject.spi.InjectionRequest<T>
All Implemented Interfaces:
Element
public final class InjectionRequest<T> extends implements 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

  • Constructor Summary

    Constructors
    Constructor
    Description
     source, TypeLiteral<T> type, T instance)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    <R> R
    acceptVisitor​(ElementVisitor<R> visitor)
    Accepts an element visitor.
    void
    applyTo​(Binder binder)
    Writes this module element to the given binder (optional operation).
    <InjectionPoint>
    getInjectionPoints()
    Returns the instance methods and fields of instance that will be injected to fulfill this request.
    T
    getInstance()
     
    getSource()
    Returns an arbitrary object containing information about the "place" where this element was configured.
    TypeLiteral<T>
    getType()
     

    Methods inherited from class java.lang.

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  • Constructor Details

    • InjectionRequest

      public InjectionRequest​( source, TypeLiteral<T> type, T instance)

  • Method Details

    • getSource

      public  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 call toString() on the source object if the type is unfamiliar.

      Specified by:
      getSource in interface Element

    • getInstance

      public T getInstance()

    • getType

      public TypeLiteral<T> getType()

    • getInjectionPoints

      public <InjectionPoint> getInjectionPoints() throws ConfigurationException
      Returns the instance methods and fields of instance 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 of instance, such as a field with multiple binding annotations. The exception's partial value is a Set<InjectionPoint> of the valid injection points.

    • acceptVisitor

      public <R> R acceptVisitor​(ElementVisitor<R> visitor)
      Description copied from interface: Element
      Accepts an element visitor. Invokes the visitor method specific to this element's type.
      Specified by:
      acceptVisitor in interface Element
      Parameters:
      visitor - to call back on

    • applyTo

      public void applyTo​(Binder binder)
      Description copied from interface: Element
      Writes this module element to the given binder (optional operation).
      Specified by:
      applyTo in interface Element
      Parameters:
      binder - to apply configuration element to