Class MethodInjector<T>

    • Constructor Detail

      • MethodInjector

        public MethodInjector​(java.lang.Object componentKey,
                              java.lang.Class componentImplementation,
                              Parameter[] parameters,
                              ComponentMonitor monitor,
                              java.lang.String methodName,
                              boolean useNames)
                       throws AbstractInjector.NotConcreteRegistrationException
        Creates a MethodInjector
        Parameters:
        componentKey - the search key for this implementation
        componentImplementation - the concrete implementation
        parameters - the parameters to use for the initialization
        monitor - the component monitor used by this addAdapter
        methodName - the method name
        useNames - use argument names when looking up dependencies
        Throws:
        AbstractInjector.NotConcreteRegistrationException - if the implementation is not a concrete class.
        java.lang.NullPointerException - if one of the parameters is null
    • Method Detail

      • getInjectorMethod

        protected abstract java.lang.reflect.Method getInjectorMethod()
      • getComponentInstance

        public T getComponentInstance​(PicoContainer container,
                                      java.lang.reflect.Type into)
                               throws PicoCompositionException
        Description copied from interface: ComponentAdapter
        Retrieve the component instance. This method will usually create a new instance each time it is called, but that is not required. For example, Cached will always return the same instance.
        Specified by:
        getComponentInstance in interface ComponentAdapter<T>
        Specified by:
        getComponentInstance in class AbstractInjector<T>
        Parameters:
        container - the PicoContainer, that is used to resolve any possible dependencies of the instance.
        into - the class that is about to be injected into. Use ComponentAdapter.NOTHING.class if this is not important to you.
        Returns:
        the component instance.
        Throws:
        PicoCompositionException - if the component has dependencies which could not be resolved, or instantiation of the component lead to an ambiguous situation within the container.
      • getMemberArguments

        protected java.lang.Object[] getMemberArguments​(PicoContainer container,
                                                        java.lang.reflect.Method method)
      • decorateComponentInstance

        public java.lang.Object decorateComponentInstance​(PicoContainer container,
                                                          java.lang.reflect.Type into,
                                                          T instance)
        Description copied from interface: Injector
        A preexiting component instance can be injected into after instantiation
        Specified by:
        decorateComponentInstance in interface Injector<T>
        Overrides:
        decorateComponentInstance in class AbstractInjector<T>
        Parameters:
        container - the container that can provide injectable dependencies
        instance - the instance to
        Returns:
      • isNullParamAllowed

        protected boolean isNullParamAllowed​(java.lang.reflect.AccessibleObject member,
                                             int i)
        Description copied from class: SingleMemberInjector
        Checks to see if a null parameter is allowed in the given constructor/field/method. The default version allows null if the target object is not a primitive type.
        Overrides:
        isNullParamAllowed in class SingleMemberInjector<T>
        Parameters:
        member - constructor method or field
        i - parameter #.
        Returns:
        true if the null parameter might be allowed.