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## org.springframework.aop.framework
Interface Advised

All Superinterfaces:
  TargetClassAware

All Known Implementing Classes:
  AdvisedSupport, AspectJProxyFactory, ProxyCreatorSupport, ProxyFactory, ProxyFactoryBean

    public interface Advised

extends TargetClassAware

Interface to be implemented by classes that hold the configuration of a factory of AOP proxies. This configuration includes the Interceptors and other advice, and Advisors, and the proxied interfaces.

Any AOP proxy obtained from Spring can be cast to this interface to allow manipulation of its AOP advice.

Since:
  13.03.2003
Author:
  Rod Johnson, Juergen Hoeller
See Also:
  `AdvisedSupport`

Method Summary
`void` | `addAdvice(Advice advice)` Add the given AOP Alliance advice to the tail of the advice (interceptor) chain.
`void` | `addAdvice(int pos, Advice advice)` Add the given AOP Alliance Advice at the specified position in the advice chain.
`void` | `addAdvisor(Advisor advisor)` Add an advisor at the end of the advisor chain.
`void` | `addAdvisor(int pos, Advisor advisor)` Add an Advisor at the specified position in the chain.
`Advisor[]` | `getAdvisors()` Return the advisors applying to this proxy.
`Class[]` | `getProxiedInterfaces()` Return the interfaces proxied by the AOP proxy.
`TargetSource` | `getTargetSource()` Return the TargetSource used by this Advised object.
`int` | `indexOf(Advice advice)` Return the index (from 0) of the given AOP Alliance Advice, or -1 if no such advice is an advice for this proxy.
`int` | `indexOf(Advisor advisor)` Return the index (from 0) of the given advisor, or -1 if no such advisor applies to this proxy.
`boolean` | `isExposeProxy()` Return whether the factory should expose the proxy as a ThreadLocal.
`boolean` | `isFrozen()` Return whether the Advised configuration is frozen, in which case no advice changes can be made.
`boolean` | `isInterfaceProxied(Class intf)` Determine whether the given interface is proxied.
`boolean` | `isPreFiltered()` Return whether this proxy configuration is pre-filtered so that it only contains applicable advisors (matching this proxy's target class).
`boolean` | `isProxyTargetClass()` Are we proxying the full target class instead of specified interfaces?
`boolean` | `removeAdvice(Advice advice)` Remove the Advisor containing the given advice.
`boolean` | `removeAdvisor(Advisor advisor)` Remove the given advisor.
`void` | `removeAdvisor(int index)` Remove the advisor at the given index.
`boolean` | `replaceAdvisor(Advisor a, Advisor b)` Replace the given advisor.
`void` | `setExposeProxy(boolean exposeProxy)` Set whether the proxy should be exposed by the AOP framework as a ThreadLocal for retrieval via the AopContext class.
`void` | `setPreFiltered(boolean preFiltered)` Set whether this proxy configuration is pre-filtered so that it only contains applicable advisors (matching this proxy's target class).
`void` | `setTargetSource(TargetSource targetSource)` Change the TargetSource used by this Advised object.
`String` | `toProxyConfigString()` As `toString()` will normally be delegated to the target, this returns the equivalent for the AOP proxy.

Methods inherited from interface org.springframework.aop.TargetClassAware
`getTargetClass`

Method Detail

### isFrozen

    boolean isFrozen()

  Return whether the Advised configuration is frozen, in which case no advice changes can be made.

### isProxyTargetClass

    boolean isProxyTargetClass()

  Are we proxying the full target class instead of specified interfaces?

### getProxiedInterfaces

    Class[] getProxiedInterfaces()

  Return the interfaces proxied by the AOP proxy. Will not include the target class, which may also be proxied.

### isInterfaceProxied

    boolean isInterfaceProxied(Class intf)

  Determine whether the given interface is proxied.

  Parameters:
    `intf` - the interface to check

### setTargetSource

    void setTargetSource(TargetSource targetSource)

  Change the TargetSource used by this Advised object. Only works if the configuration isn't frozen.

  Parameters:
    `targetSource` - new TargetSource to use

### getTargetSource

    TargetSource getTargetSource()

  Return the TargetSource used by this Advised object.

### setExposeProxy

    void setExposeProxy(boolean exposeProxy)

  Set whether the proxy should be exposed by the AOP framework as a ThreadLocal for retrieval via the AopContext class. This is useful if an advised object needs to call another advised method on itself. (If it uses `this`, the invocation will not be advised).

  Default is "false", for optimal performance.

### isExposeProxy

    boolean isExposeProxy()

  Return whether the factory should expose the proxy as a ThreadLocal. This can be necessary if a target object needs to invoke a method on itself benefitting from advice. (If it invokes a method on `this` no advice will apply.) Getting the proxy is analogous to an EJB calling getEJBObject().

  See Also:
    `AopContext`

### setPreFiltered

    void setPreFiltered(boolean preFiltered)

  Set whether this proxy configuration is pre-filtered so that it only contains applicable advisors (matching this proxy's target class).

  Default is "false". Set this to "true" if the advisors have been pre-filtered already, meaning that the ClassFilter check can be skipped when building the actual advisor chain for proxy invocations.

  See Also:
    `ClassFilter`

### isPreFiltered

    boolean isPreFiltered()

  Return whether this proxy configuration is pre-filtered so that it only contains applicable advisors (matching this proxy's target class).

### getAdvisors

    Advisor[] getAdvisors()

  Return the advisors applying to this proxy.

  Returns:
    a list of Advisors applying to this proxy (never `null`)

### addAdvisor

    void addAdvisor(Advisor advisor)
                    throws AopConfigException

  Add an advisor at the end of the advisor chain.

  The Advisor may be an `IntroductionAdvisor`, in which new interfaces will be available when a proxy is next obtained from the relevant factory.

  Parameters:
    `advisor` - the advisor to add to the end of the chain
  Throws:
    `AopConfigException` - in case of invalid advice

### addAdvisor

    void addAdvisor(int pos,
                    Advisor advisor)
                    throws AopConfigException

  Add an Advisor at the specified position in the chain.

  Parameters:
    `advisor` - the advisor to add at the specified position in the chain
    `pos` - position in chain (0 is head). Must be valid.
  Throws:
    `AopConfigException` - in case of invalid advice

### removeAdvisor

    boolean removeAdvisor(Advisor advisor)

  Remove the given advisor.

  Parameters:
    `advisor` - the advisor to remove
  Returns:
    `true` if the advisor was removed; `false` if the advisor was not found and hence could not be removed

### removeAdvisor

    void removeAdvisor(int index)
                       throws AopConfigException

  Remove the advisor at the given index.

  Parameters:
    `index` - index of advisor to remove
  Throws:
    `AopConfigException` - if the index is invalid

### indexOf

    int indexOf(Advisor advisor)

  Return the index (from 0) of the given advisor, or -1 if no such advisor applies to this proxy.

  The return value of this method can be used to index into the advisors array.

  Parameters:
    `advisor` - the advisor to search for
  Returns:
    index from 0 of this advisor, or -1 if there's no such advisor

### replaceAdvisor

    boolean replaceAdvisor(Advisor a,
                           Advisor b)
                           throws AopConfigException

  Replace the given advisor.

  Note: If the advisor is an `IntroductionAdvisor` and the replacement is not or implements different interfaces, the proxy will need to be re-obtained or the old interfaces won't be supported and the new interface won't be implemented.

  Parameters:
    `a` - the advisor to replace
    `b` - the advisor to replace it with
  Returns:
    whether it was replaced. If the advisor wasn't found in the list of advisors, this method returns `false` and does nothing.
  Throws:
    `AopConfigException` - in case of invalid advice

### addAdvice

    void addAdvice(Advice advice)
                   throws AopConfigException

  Add the given AOP Alliance advice to the tail of the advice (interceptor) chain.

  This will be wrapped in a DefaultPointcutAdvisor with a pointcut that always applies, and returned from the `getAdvisors()` method in this wrapped form.

  Note that the given advice will apply to all invocations on the proxy, even to the `toString()` method! Use appropriate advice implementations or specify appropriate pointcuts to apply to a narrower set of methods.

  Parameters:
    `advice` - advice to add to the tail of the chain
  Throws:
    `AopConfigException` - in case of invalid advice
  See Also:
    `addAdvice(int, Advice)`, `DefaultPointcutAdvisor`

### addAdvice

    void addAdvice(int pos,
                   Advice advice)
                   throws AopConfigException

  Add the given AOP Alliance Advice at the specified position in the advice chain.

  This will be wrapped in a `DefaultPointcutAdvisor` with a pointcut that always applies, and returned from the `getAdvisors()` method in this wrapped form.

  Note: The given advice will apply to all invocations on the proxy, even to the `toString()` method! Use appropriate advice implementations or specify appropriate pointcuts to apply to a narrower set of methods.

  Parameters:
    `pos` - index from 0 (head)
    `advice` - advice to add at the specified position in the advice chain
  Throws:
    `AopConfigException` - in case of invalid advice

### removeAdvice

    boolean removeAdvice(Advice advice)

  Remove the Advisor containing the given advice.

  Parameters:
    `advice` - the advice to remove
  Returns:
    `true` of the advice was found and removed; `false` if there was no such advice

### indexOf

    int indexOf(Advice advice)

  Return the index (from 0) of the given AOP Alliance Advice, or -1 if no such advice is an advice for this proxy.

  The return value of this method can be used to index into the advisors array.

  Parameters:
    `advice` - AOP Alliance advice to search for
  Returns:
    index from 0 of this advice, or -1 if there's no such advice

### toProxyConfigString

    String toProxyConfigString()

  As `toString()` will normally be delegated to the target, this returns the equivalent for the AOP proxy.

  Returns:
    a string description of the proxy configuration

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