Package org.jvnet.hk2.internal

Class DefaultClassAnalyzer

  • All Implemented Interfaces:
    ClassAnalyzer
    @Singleton
@Named("default")
@Visibility(LOCAL)
public class DefaultClassAnalyzer
extends java.lang.Object
implements ClassAnalyzer
    this is the default implementation of the ClassAnalyzer

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      <T> java.lang.reflect.Constructor<T> getConstructor​(java.lang.Class<T> clazz)
      Will return the constructor that it to be used when constructing this service
      <T> java.util.Set<java.lang.reflect.Field> getFields​(java.lang.Class<T> clazz)
      Will return the set of initializer fields to be used when initializing this service
      <T> java.util.Set<java.lang.reflect.Method> getInitializerMethods​(java.lang.Class<T> clazz)
      Will return the set of initializer method to be used when initializing this service
      <T> java.lang.reflect.Method getPostConstructMethod​(java.lang.Class<T> clazz)
      Will return the postConstruct method of the class
      <T> java.lang.reflect.Method getPreDestroyMethod​(java.lang.Class<T> clazz)
      Will return the preDestroy method of the class

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • DefaultClassAnalyzer

        public DefaultClassAnalyzer​(ServiceLocatorImpl locator)
        The DefaultClassAnalyzer is per ServiceLocatorImpl
        Parameters:
        locator - The non-null locator associated with this analyzer

    • Method Detail

      • getConstructor

        public <T> java.lang.reflect.Constructor<T> getConstructor​(java.lang.Class<T> clazz)
                                                    throws MultiException,
                                                           java.lang.NoSuchMethodException
        Description copied from interface: ClassAnalyzer
        Will return the constructor that it to be used when constructing this service

        The default implementation will use the zero-arg constructor if no single constructor with Inject is found. Also will return any constructor that is covered by an InjectionResolver and the InjectionResolver.isConstructorParameterIndicator() is set to true

        Specified by:
        getConstructor in interface ClassAnalyzer
        Parameters:
        clazz - the non-null class to analyze
        Returns:
        The non-null constructor to use for creating this service
        Throws:
        MultiException - on an error when analyzing the class
        java.lang.NoSuchMethodException - if there was no available constructor

      • getInitializerMethods

        public <T> java.util.Set<java.lang.reflect.Method> getInitializerMethods​(java.lang.Class<T> clazz)
                                                                  throws MultiException
        Description copied from interface: ClassAnalyzer
        Will return the set of initializer method to be used when initializing this service

        The default implementation will return all methods marked with Inject or that have a parameter that is covered by an InjectionResolver and the InjectionResolver.isMethodParameterIndicator() is set to true. Also, any method that has a parameter marked with SubscribeTo will NOT be returned, as these methods are instead meant to be called when an event is fired

        Specified by:
        getInitializerMethods in interface ClassAnalyzer
        Parameters:
        clazz - the non-null class to analyze
        Returns:
        A non-null but possibly empty set of initialization methods
        Throws:
        MultiException - on an error when analyzing the class

      • getFields

        public <T> java.util.Set<java.lang.reflect.Field> getFields​(java.lang.Class<T> clazz)
                                                     throws MultiException
        Description copied from interface: ClassAnalyzer
        Will return the set of initializer fields to be used when initializing this service

        The default implementation will return all fields marked with Inject or that have a parameter that is covered by an InjectionResolver

        Specified by:
        getFields in interface ClassAnalyzer
        Parameters:
        clazz - the non-null class to analyze
        Returns:
        A non-null but possibly empty set of initialization fields
        Throws:
        MultiException - on an error when analyzing the class

      • getPostConstructMethod

        public <T> java.lang.reflect.Method getPostConstructMethod​(java.lang.Class<T> clazz)
                                                    throws MultiException
        Description copied from interface: ClassAnalyzer
        Will return the postConstruct method of the class

        The default implementation will return the PostConstruct.postConstruct() method or the method annotated with PostConstruct

        Specified by:
        getPostConstructMethod in interface ClassAnalyzer
        Parameters:
        clazz - the non-null class to analyze
        Returns:
        A possibly null method representing the postConstruct method to call
        Throws:
        MultiException - on an error when analyzing the class

      • getPreDestroyMethod

        public <T> java.lang.reflect.Method getPreDestroyMethod​(java.lang.Class<T> clazz)
                                                 throws MultiException
        Description copied from interface: ClassAnalyzer
        Will return the preDestroy method of the class

        The default implementation will return the PreDestroy.preDestroy() method or the method annotated with PreDestroy

        Specified by:
        getPreDestroyMethod in interface ClassAnalyzer
        Parameters:
        clazz - the non-null class to analyze
        Returns:
        A possibly null method representing the preDestroy method to call
        Throws:
        MultiException - on an error when analyzing the class