org.springframework.aop.support

## 类 DelegatePerTargetObjectIntroductionInterceptor

- java.lang.Object
- - org.springframework.aop.support.IntroductionInfoSupport
  - - org.springframework.aop.support.DelegatePerTargetObjectIntroductionInterceptor

- 所有已实现的接口:
    Serializable, Advice, Interceptor, MethodInterceptor, DynamicIntroductionAdvice, IntroductionInfo, IntroductionInterceptor

      public class DelegatePerTargetObjectIntroductionInterceptor
      extends IntroductionInfoSupport
      implements IntroductionInterceptor

  Convenient implementation of the `IntroductionInterceptor` interface.

  This differs from `DelegatingIntroductionInterceptor` in that a single instance of this class can be used to advise multiple target objects, and each target object will have its own delegate (whereas DelegatingIntroductionInterceptor shares the same delegate, and hence the same state across all targets).

  The `suppressInterface` method can be used to suppress interfaces implemented by the delegate class but which should not be introduced to the owning AOP proxy.

  An instance of this class is serializable if the delegates are.

  Note: There are some implementation similarities between this class and `DelegatingIntroductionInterceptor` that suggest a possible refactoring to extract a common ancestor class in the future.

  从以下版本开始:
    2.0
  作者:
    Adrian Colyer, Juergen Hoeller
  另请参阅:
    `IntroductionInfoSupport.suppressInterface(java.lang.Class<?>)`, `DelegatingIntroductionInterceptor`, 序列化表格

- - ### 字段概要

    - ### 从类继承的字段 org.springframework.aop.support.IntroductionInfoSupport

      `publishedInterfaces`

  - ### 构造器概要

    构造器
    构造器和说明
    `DelegatePerTargetObjectIntroductionInterceptor(Class<?> defaultImplType, Class<?> interfaceType)`

  - ### 方法概要

    所有方法 实例方法 具体方法
    限定符和类型 | 方法和说明
    --- | ---
    `protected Object` | `doProceed(MethodInvocation mi)` Proceed with the supplied `MethodInterceptor`.
    `Object` | `invoke(MethodInvocation mi)` Subclasses may need to override this if they want to perform custom behaviour in around advice.

    - ### 从类继承的方法 org.springframework.aop.support.IntroductionInfoSupport

      `getInterfaces, implementInterfacesOnObject, implementsInterface, isMethodOnIntroducedInterface, suppressInterface`

    - ### 从类继承的方法 java.lang.Object

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

    - ### 从接口继承的方法 org.springframework.aop.DynamicIntroductionAdvice

      `implementsInterface`

- - ### 构造器详细资料

    - #### DelegatePerTargetObjectIntroductionInterceptor

          public DelegatePerTargetObjectIntroductionInterceptor(Class<?> defaultImplType,
                                                                Class<?> interfaceType)

  - ### 方法详细资料

    - #### invoke

          @Nullable
          public Object invoke(MethodInvocation mi)
                                   throws Throwable

      Subclasses may need to override this if they want to perform custom behaviour in around advice. However, subclasses should invoke this method, which handles introduced interfaces and forwarding to the target.
      指定者:
        `invoke` 在接口中 `MethodInterceptor`
      参数:
        `mi` - 主要实现类:ReflectiveMethodInvocation
      抛出:
        `Throwable`

    - #### doProceed

          protected Object doProceed(MethodInvocation mi)
                              throws Throwable

      Proceed with the supplied `MethodInterceptor`. Subclasses can override this method to intercept method invocations on the target object which is useful when an introduction needs to monitor the object that it is introduced into. This method is never called for `MethodInvocations` on the introduced interfaces.
      抛出:
        `Throwable`