类 AopUtils

构造器详细资料

• AopUtils

  public AopUtils()

方法详细资料

• isAopProxy

  public static boolean isAopProxy​(Object object)

  Check whether the given object is a JDK dynamic proxy or a CGLIB proxy.

  This method additionally checks if the given object is an instance of SpringProxy.

  参数:

  object - the object to check

  另请参阅:

  isJdkDynamicProxy(java.lang.Object), isCglibProxy(java.lang.Object)

• isJdkDynamicProxy

  public static boolean isJdkDynamicProxy​(Object object)

  Check whether the given object is a JDK dynamic proxy.

  This method goes beyond the implementation of Proxy.isProxyClass(Class) by additionally checking if the given object is an instance of SpringProxy.

  参数:

  object - the object to check

  另请参阅:

  Proxy.isProxyClass(java.lang.Class<?>)

• isCglibProxy

  public static boolean isCglibProxy​(Object object)

  Check whether the given object is a CGLIB proxy.

  This method goes beyond the implementation of ClassUtils.isCglibProxy(Object) by additionally checking if the given object is an instance of SpringProxy.

  参数:

  object - the object to check

  另请参阅:

  ClassUtils.isCglibProxy(Object)

• getTargetClass

  public static Class<?> getTargetClass​(Object candidate)

  Determine the target class of the given bean instance which might be an AOP proxy.

  Returns the target class for an AOP proxy or the plain class otherwise.

  参数:

  candidate - the instance to check (might be an AOP proxy)

  返回:

  the target class (or the plain class of the given object as fallback; never null)

  另请参阅:

  TargetClassAware.getTargetClass(), AopProxyUtils.ultimateTargetClass(Object)

• 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.

  参数:

  method - the method to check

  targetType - the target type to search methods on (typically an AOP 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)

  从以下版本开始:

  4.3

  另请参阅:

  MethodIntrospector.selectInvocableMethod(Method, Class)

• isEqualsMethod

  public static boolean isEqualsMethod​(Method method)

  Determine whether the given method is an "equals" method.

  另请参阅:

  Object.equals(java.lang.Object)

• isHashCodeMethod

  public static boolean isHashCodeMethod​(Method method)

  Determine whether the given method is a "hashCode" method.

  另请参阅:

  Object.hashCode()

• isToStringMethod

  public static boolean isToStringMethod​(Method method)

  Determine whether the given method is a "toString" method.

  另请参阅:

  Object.toString()

• isFinalizeMethod

  public static boolean isFinalizeMethod​(Method method)

  Determine whether the given method is a "finalize" method.

  另请参阅:

  Object.finalize()

• getMostSpecificMethod

  public static Method getMostSpecificMethod​(Method method,
                                             Class<?> targetClass)

  Given a method, which may come from an interface, and a target class used in the current AOP invocation, find the corresponding target method if there is one. E.g. the method may be IFoo.bar() and the target class may be DefaultFoo. In this case, the method may be DefaultFoo.bar(). This enables attributes on that method to be found.

  NOTE: In contrast to ClassUtils.getMostSpecificMethod(java.lang.reflect.Method, java.lang.Class<?>), this method resolves Java 5 bridge methods in order to retrieve attributes from the original method definition.

  参数:

  method - the method to be invoked, which may come from an interface

  targetClass - the target class for the current invocation. May be null or may not even implement the method.

  返回:

  the specific target method, or the original method if the targetClass doesn't implement it or is null

  另请参阅:

  ClassUtils.getMostSpecificMethod(java.lang.reflect.Method, java.lang.Class<?>)

• canApply

  public static boolean canApply​(Pointcut pc,
                                 Class<?> targetClass)

  Can the given pointcut apply at all on the given class?

  This is an important test as it can be used to optimize out a pointcut for a class.

  参数:

  pc - the static or dynamic pointcut to check

  targetClass - the class to test

  返回:

  whether the pointcut can apply on any method

• canApply

  public static boolean canApply​(Pointcut pc,
                                 Class<?> targetClass,
                                 boolean hasIntroductions)

  Can the given pointcut apply at all on the given class?

  This is an important test as it can be used to optimize out a pointcut for a class.

  参数:

  pc - the static or dynamic pointcut to check

  targetClass - the class to test

  hasIntroductions - whether or not the advisor chain for this bean includes any introductions

  返回:

  whether the pointcut can apply on any method

• canApply

  public static boolean canApply​(Advisor advisor,
                                 Class<?> targetClass)

  Can the given advisor apply at all on the given class? This is an important test as it can be used to optimize out a advisor for a class.

  参数:

  advisor - the advisor to check

  targetClass - class we're testing

  返回:

  whether the pointcut can apply on any method

• canApply

  public static boolean canApply​(Advisor advisor,
                                 Class<?> targetClass,
                                 boolean hasIntroductions)

  Can the given advisor apply at all on the given class?

  This is an important test as it can be used to optimize out a advisor for a class. This version also takes into account introductions (for IntroductionAwareMethodMatchers).

  参数:

  advisor - the advisor to check

  targetClass - class we're testing

  hasIntroductions - whether or not the advisor chain for this bean includes any introductions

  返回:

  whether the pointcut can apply on any method

• findAdvisorsThatCanApply

  public static List<Advisor> findAdvisorsThatCanApply​(List<Advisor> candidateAdvisors,
                                                       Class<?> clazz)

  Determine the sublist of the candidateAdvisors list that is applicable to the given class.

  参数:

  candidateAdvisors - the Advisors to evaluate

  clazz - the target class

  返回:

  sublist of Advisors that can apply to an object of the given class (may be the incoming List as-is)

• invokeJoinpointUsingReflection

  public static Object invokeJoinpointUsingReflection​(Object target,
                                                      Method method,
                                                      Object[] args)
                                               throws Throwable

  Invoke the given target via reflection, as part of an AOP method invocation.

  参数:

  target - the target object

  method - the method to invoke

  args - the arguments for the method

  返回:

  the invocation result, if any

  抛出:

  Throwable - if thrown by the target method

  AopInvocationException - in case of a reflection error