类 RequiredAnnotationBeanPostProcessor

字段详细资料

• SKIP_REQUIRED_CHECK_ATTRIBUTE

  public static final String SKIP_REQUIRED_CHECK_ATTRIBUTE

  Bean definition attribute that may indicate whether a given bean is supposed to be skipped when performing this post-processor's required property check.

  另请参阅:

  shouldSkip(org.springframework.beans.factory.config.ConfigurableListableBeanFactory, java.lang.String)

构造器详细资料

• RequiredAnnotationBeanPostProcessor

  public RequiredAnnotationBeanPostProcessor()

方法详细资料

• setRequiredAnnotationType

  public void setRequiredAnnotationType​(Class<? extends Annotation> requiredAnnotationType)

  Set the 'required' annotation type, to be used on bean property setter methods.

  The default required annotation type is the Spring-provided Required annotation.

  This setter property exists so that developers can provide their own (non-Spring-specific) annotation type to indicate that a property value is required.

• getRequiredAnnotationType

  protected Class<? extends Annotation> getRequiredAnnotationType()

  Return the 'required' annotation type.

• setBeanFactory

  public void setBeanFactory​(BeanFactory beanFactory)

  从接口复制的说明: BeanFactoryAware
  Callback that supplies the owning factory to a bean instance.

  Invoked after the population of normal bean properties but before an initialization callback such as InitializingBean.afterPropertiesSet() or a custom init-method.

  指定者:

  setBeanFactory 在接口中 BeanFactoryAware

  参数:

  beanFactory - owning BeanFactory (never null). The bean can immediately call methods on the factory.

  另请参阅:

  BeanInitializationException

• setOrder

  public void setOrder​(int order)

• getOrder

  public int getOrder()

  从接口复制的说明: Ordered
  Get the order value of this object.

  Higher values are interpreted as lower priority. As a consequence, the object with the lowest value has the highest priority (somewhat analogous to Servlet load-on-startup values).

  Same order values will result in arbitrary sort positions for the affected objects.

  指定者:

  getOrder 在接口中 Ordered

  返回:

  the order value

  另请参阅:

  Ordered.HIGHEST_PRECEDENCE, Ordered.LOWEST_PRECEDENCE

• postProcessMergedBeanDefinition

  public void postProcessMergedBeanDefinition​(RootBeanDefinition beanDefinition,
                                              Class<?> beanType,
                                              String beanName)

  从接口复制的说明: MergedBeanDefinitionPostProcessor
  Post-process the given merged bean definition for the specified bean.

  指定者:

  postProcessMergedBeanDefinition 在接口中 MergedBeanDefinitionPostProcessor

  参数:

  beanDefinition - the merged bean definition for the bean

  beanType - the actual type of the managed bean instance

  beanName - the name of the bean

• 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

  覆盖:

  postProcessPropertyValues 在类中 InstantiationAwareBeanPostProcessorAdapter

  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

• shouldSkip

  protected boolean shouldSkip​(ConfigurableListableBeanFactory beanFactory,
                               String beanName)

  Check whether the given bean definition is not subject to the annotation-based required property check as performed by this post-processor.

  The default implementations check for the presence of the SKIP_REQUIRED_CHECK_ATTRIBUTE attribute in the bean definition, if any. It also suggests skipping in case of a bean definition with a "factory-bean" reference set, assuming that instance-based factories pre-populate the bean.

  参数:

  beanFactory - the BeanFactory to check against

  beanName - the name of the bean to check against

  返回:

  true to skip the bean; false to process it

• isRequiredProperty

  protected boolean isRequiredProperty​(PropertyDescriptor propertyDescriptor)

  Is the supplied property required to have a value (that is, to be dependency-injected)?

  This implementation looks for the existence of a "required" annotation on the supplied property.

  参数:

  propertyDescriptor - the target PropertyDescriptor (never null)

  返回:

  true if the supplied property has been marked as being required; false if not, or if the supplied property does not have a setter method