类 MethodIntrospector

构造器详细资料

• MethodIntrospector

  public MethodIntrospector()

方法详细资料

• selectMethods

  public static <T> Map<Method,​T> selectMethods​(Class<?> targetType,
                                                      MethodIntrospector.MetadataLookup<T> metadataLookup)

  Select methods on the given target type based on the lookup of associated metadata.

  Callers define methods of interest through the MethodIntrospector.MetadataLookup parameter, allowing to collect the associated metadata into the result map.

  参数:

  targetType - the target type to search methods on

  metadataLookup - a MethodIntrospector.MetadataLookup callback to inspect methods of interest, returning non-null metadata to be associated with a given method if there is a match, or null for no match

  返回:

  the selected methods associated with their metadata (in the order of retrieval), or an empty map in case of no match

• selectMethods

  public static Set<Method> selectMethods​(Class<?> targetType,
                                          ReflectionUtils.MethodFilter methodFilter)

  Select methods on the given target type based on a filter.

  Callers define methods of interest through the MethodFilter parameter.

  参数:

  targetType - the target type to search methods on

  methodFilter - a MethodFilter to help recognize handler methods of interest

  返回:

  the selected methods, or an empty set in case of no match

• selectInvocableMethod

  public static Method selectInvocableMethod​(Method method,
                                             Class<?> targetType)

  Select an invocable method on the target type: either the given method itself if actually exposed on the target type, or otherwise a corresponding method on one of the target type's interfaces or on the target type itself.

  Matches on user-declared interfaces will be preferred since they are likely to contain relevant metadata that corresponds to the method on the target class.

  参数:

  method - the method to check

  targetType - the target type to search methods on (typically an interface-based JDK proxy)

  返回:

  a corresponding invocable method on the target type

  抛出:

  IllegalStateException - if the given method is not invocable on the given target type (typically due to a proxy mismatch)