Package org.springframework.aop.support

Class ControlFlowPointcut

java.lang.Object
org.springframework.aop.support.ControlFlowPointcut
All Implemented Interfaces:
Serializable, ClassFilter, MethodMatcher, Pointcut
public class ControlFlowPointcut extends Object implements Pointcut, ClassFilter, MethodMatcher, Serializable
Pointcut and method matcher for use as a simple cflow-style pointcut.

Note that evaluating such pointcuts is 10-15 times slower than evaluating normal pointcuts, but they are useful in some cases.

Author:
Rod Johnson, Rob Harrop, Juergen Hoeller, Sam Brannen
See Also:

  • Field Details

    • clazz

      protected final Class<?> clazz
      The class against which to match.

      Available for use in subclasses since 6.1.

    • methodName

      @Nullable protected final String methodName
      The method against which to match, potentially null.

      Available for use in subclasses since 6.1.

  • Constructor Details

    • ControlFlowPointcut

      public ControlFlowPointcut(Class<?> clazz)
      Construct a new pointcut that matches all control flows below the given class.
      Parameters:
      clazz - the class

    • ControlFlowPointcut

      public ControlFlowPointcut(Class<?> clazz, @Nullable String methodName)
      Construct a new pointcut that matches all calls below the given method in the given class.

      If no method name is given, the pointcut matches all control flows below the given class.

      Parameters:
      clazz - the class
      methodName - the name of the method (may be null)

  • Method Details

    • matches

      public boolean matches(Class<?> clazz)
      Subclasses can override this for greater filtering (and performance).

      The default implementation always returns true.

      Specified by:
      matches in interface ClassFilter
      Parameters:
      clazz - the candidate target class
      Returns:
      whether the advice should apply to the given target class

    • matches

      public boolean matches(Method method, Class<?> targetClass)
      Subclasses can override this if it's possible to filter out some candidate classes.

      The default implementation always returns true.

      Specified by:
      matches in interface MethodMatcher
      Parameters:
      method - the candidate method
      targetClass - the target class
      Returns:
      whether this method matches statically

    • isRuntime

      public boolean isRuntime()
      Description copied from interface: MethodMatcher
      Is this MethodMatcher dynamic, that is, must a final check be made via the MethodMatcher.matches(Method, Class, Object[]) method at runtime even if MethodMatcher.matches(Method, Class) returns true?

      Can be invoked when an AOP proxy is created, and need not be invoked again before each method invocation.

      Specified by:
      isRuntime in interface MethodMatcher
      Returns:
      whether a runtime match via MethodMatcher.matches(Method, Class, Object[]) is required if static matching passed

    • matches

      public boolean matches(Method method, Class<?> targetClass, Object... args)
      Description copied from interface: MethodMatcher
      Check whether there is a runtime (dynamic) match for this method, which must have matched statically.

      This method is invoked only if MethodMatcher.matches(Method, Class) returns true for the given method and target class, and if MethodMatcher.isRuntime() returns true.

      Invoked immediately before potential running of the advice, after any advice earlier in the advice chain has run.

      Specified by:
      matches in interface MethodMatcher
      Parameters:
      method - the candidate method
      targetClass - the target class
      args - arguments to the method
      Returns:
      whether there's a runtime match
      See Also:

    • getEvaluations

      public int getEvaluations()
      Get the number of times matches(Method, Class, Object...) has been evaluated.

      Useful for optimization and testing purposes.

    • incrementEvaluationCount

      protected final void incrementEvaluationCount()
      Increment the evaluation count.
      Since:
      6.1
      See Also:

    • getClassFilter

      public ClassFilter getClassFilter()
      Description copied from interface: Pointcut
      Return the ClassFilter for this pointcut.
      Specified by:
      getClassFilter in interface Pointcut
      Returns:
      the ClassFilter (never null)

    • getMethodMatcher

      public MethodMatcher getMethodMatcher()
      Description copied from interface: Pointcut
      Return the MethodMatcher for this pointcut.
      Specified by:
      getMethodMatcher in interface Pointcut
      Returns:
      the MethodMatcher (never null)

    • equals

      public boolean equals(@Nullable Object other)
      Overrides:
      equals in class Object

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • toString

      public String toString()
      Overrides:
      toString in class Object