DelegatePerTargetObjectIntroductionInterceptor (Spring Framework 5.2.12.RELEASE API)

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
构造器说明
DelegatePerTargetObjectIntroductionInterceptor(Class<?> defaultImplType, Class<?> interfaceType)

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	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 - the method invocation joinpoint
    返回:
    the result of the call to Joinpoint.proceed(); might be intercepted by the interceptor
    抛出:
    Throwable - if the interceptors or the target object throws an exception
  - 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