类 InstantiationAwareBeanPostProcessorAdapter

构造器详细资料

• InstantiationAwareBeanPostProcessorAdapter

  public InstantiationAwareBeanPostProcessorAdapter()

方法详细资料

• predictBeanType

  public Class<?> predictBeanType​(Class<?> beanClass,
                                  String beanName)

  从接口复制的说明: SmartInstantiationAwareBeanPostProcessor
  Predict the type of the bean to be eventually returned from this processor's InstantiationAwareBeanPostProcessor.postProcessBeforeInstantiation(java.lang.Class<?>, java.lang.String) callback.

  指定者:

  predictBeanType 在接口中 SmartInstantiationAwareBeanPostProcessor

  参数:

  beanClass - the raw class of the bean

  beanName - the name of the bean

  返回:

  the type of the bean, or null if not predictable

• determineCandidateConstructors

  public Constructor<?>[] determineCandidateConstructors​(Class<?> beanClass,
                                                         String beanName)
                                                  throws BeansException

  从接口复制的说明: SmartInstantiationAwareBeanPostProcessor
  Determine the candidate constructors to use for the given bean.

  指定者:

  determineCandidateConstructors 在接口中 SmartInstantiationAwareBeanPostProcessor

  参数:

  beanClass - the raw class of the bean (never null)

  beanName - the name of the bean

  返回:

  the candidate constructors, or null if none specified

  抛出:

  BeansException - in case of errors

• getEarlyBeanReference

  public Object getEarlyBeanReference​(Object bean,
                                      String beanName)
                               throws BeansException

  从接口复制的说明: SmartInstantiationAwareBeanPostProcessor
  Obtain a reference for early access to the specified bean, typically for the purpose of resolving a circular reference.

  This callback gives post-processors a chance to expose a wrapper early - that is, before the target bean instance is fully initialized. The exposed object should be equivalent to the what BeanPostProcessor.postProcessBeforeInitialization(java.lang.Object, java.lang.String) / BeanPostProcessor.postProcessAfterInitialization(java.lang.Object, java.lang.String) would expose otherwise. Note that the object returned by this method will be used as bean reference unless the post-processor returns a different wrapper from said post-process callbacks. In other words: Those post-process callbacks may either eventually expose the same reference or alternatively return the raw bean instance from those subsequent callbacks (if the wrapper for the affected bean has been built for a call to this method already, it will be exposes as final bean reference by default).

  指定者:

  getEarlyBeanReference 在接口中 SmartInstantiationAwareBeanPostProcessor

  参数:

  bean - the raw bean instance

  beanName - the name of the bean

  返回:

  the object to expose as bean reference (typically with the passed-in bean instance as default)

  抛出:

  BeansException - in case of errors

• postProcessBeforeInstantiation

  public Object postProcessBeforeInstantiation​(Class<?> beanClass,
                                               String beanName)
                                        throws BeansException

  从接口复制的说明: InstantiationAwareBeanPostProcessor
  Apply this BeanPostProcessor before the target bean gets instantiated. The returned bean object may be a proxy to use instead of the target bean, effectively suppressing default instantiation of the target bean.

  If a non-null object is returned by this method, the bean creation process will be short-circuited. The only further processing applied is the BeanPostProcessor.postProcessAfterInitialization(java.lang.Object, java.lang.String) callback from the configured BeanPostProcessors.

  This callback will be applied to bean definitions with their bean class, as well as to factory-method definitions in which case the returned bean type will be passed in here.

  Post-processors may implement the extended SmartInstantiationAwareBeanPostProcessor interface in order to predict the type of the bean object that they are going to return here.

  指定者:

  postProcessBeforeInstantiation 在接口中 InstantiationAwareBeanPostProcessor

  参数:

  beanClass - the class of the bean to be instantiated

  beanName - the name of the bean

  返回:

  the bean object to expose instead of a default instance of the target bean, or null to proceed with default instantiation

  抛出:

  BeansException - in case of errors

  另请参阅:

  InstantiationAwareBeanPostProcessor.postProcessAfterInstantiation(java.lang.Object, java.lang.String), AbstractBeanDefinition.getBeanClass(), AbstractBeanDefinition.getFactoryMethodName()

• postProcessAfterInstantiation

  public boolean postProcessAfterInstantiation​(Object bean,
                                               String beanName)
                                        throws BeansException

  从接口复制的说明: InstantiationAwareBeanPostProcessor
  Perform operations after the bean has been instantiated, via a constructor or factory method, but before Spring property population (from explicit properties or autowiring) occurs.

  This is the ideal callback for performing custom field injection on the given bean instance, right before Spring's autowiring kicks in.

  指定者:

  postProcessAfterInstantiation 在接口中 InstantiationAwareBeanPostProcessor

  参数:

  bean - the bean instance created, with properties not having been set yet

  beanName - the name of the bean

  返回:

  true if properties should be set on the bean; false if property population should be skipped. Normal implementations should return true. Returning false will also prevent any subsequent InstantiationAwareBeanPostProcessor instances being invoked on this bean instance.

  抛出:

  BeansException - in case of errors

  另请参阅:

  InstantiationAwareBeanPostProcessor.postProcessBeforeInstantiation(java.lang.Class<?>, java.lang.String)

• postProcessPropertyValues

  public PropertyValues postProcessPropertyValues​(PropertyValues pvs,
                                                  PropertyDescriptor[] pds,
                                                  Object bean,
                                                  String beanName)
                                           throws BeansException

  从接口复制的说明: InstantiationAwareBeanPostProcessor
  Post-process the given property values before the factory applies them to the given bean. Allows for checking whether all dependencies have been satisfied, for example based on a "Required" annotation on bean property setters.

  Also allows for replacing the property values to apply, typically through creating a new MutablePropertyValues instance based on the original PropertyValues, adding or removing specific values.

  指定者:

  postProcessPropertyValues 在接口中 InstantiationAwareBeanPostProcessor

  参数:

  pvs - the property values that the factory is about to apply (never null)

  pds - the relevant property descriptors for the target bean (with ignored dependency types - which the factory handles specifically - already filtered out)

  bean - the bean instance created, but whose properties have not yet been set

  beanName - the name of the bean

  返回:

  the actual property values to apply to the given bean (can be the passed-in PropertyValues instance), or null to skip property population

  抛出:

  BeansException - in case of errors

  另请参阅:

  MutablePropertyValues

• postProcessBeforeInitialization

  public Object postProcessBeforeInitialization​(Object bean,
                                                String beanName)
                                         throws BeansException

  从接口复制的说明: BeanPostProcessor
  Apply this BeanPostProcessor to the given new bean instance before any bean initialization callbacks (like InitializingBean's afterPropertiesSet or a custom init-method). The bean will already be populated with property values. The returned bean instance may be a wrapper around the original.

  指定者:

  postProcessBeforeInitialization 在接口中 BeanPostProcessor

  参数:

  bean - the new bean instance

  beanName - the name of the bean

  返回:

  the bean instance to use, either the original or a wrapped one; if null, no subsequent BeanPostProcessors will be invoked

  抛出:

  BeansException - in case of errors

  另请参阅:

  InitializingBean.afterPropertiesSet()

• postProcessAfterInitialization

  public Object postProcessAfterInitialization​(Object bean,
                                               String beanName)
                                        throws BeansException

  从接口复制的说明: BeanPostProcessor
  Apply this BeanPostProcessor to the given new bean instance after any bean initialization callbacks (like InitializingBean's afterPropertiesSet or a custom init-method). The bean will already be populated with property values. The returned bean instance may be a wrapper around the original.

  In case of a FactoryBean, this callback will be invoked for both the FactoryBean instance and the objects created by the FactoryBean (as of Spring 2.0). The post-processor can decide whether to apply to either the FactoryBean or created objects or both through corresponding bean instanceof FactoryBean checks.

  This callback will also be invoked after a short-circuiting triggered by a InstantiationAwareBeanPostProcessor.postProcessBeforeInstantiation(java.lang.Class<?>, java.lang.String) method, in contrast to all other BeanPostProcessor callbacks.

  指定者:

  postProcessAfterInitialization 在接口中 BeanPostProcessor

  参数:

  bean - the new bean instance

  beanName - the name of the bean

  返回:

  the bean instance to use, either the original or a wrapped one; if null, no subsequent BeanPostProcessors will be invoked

  抛出:

  BeansException - in case of errors

  另请参阅:

  InitializingBean.afterPropertiesSet(), FactoryBean