Class Filter In DynamicMethodMatcherPointcut : Pointcut « Spring « Java Tutorial

1. Java Tutorial
2. Spring
3. Pointcut

File: Main.java

import java.lang.reflect.Method;

import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;
import org.springframework.aop.Advisor;
import org.springframework.aop.ClassFilter;
import org.springframework.aop.framework.ProxyFactory;
import org.springframework.aop.support.DefaultPointcutAdvisor;
import org.springframework.aop.support.DynamicMethodMatcherPointcut;

public class Main {

  public static void main(String[] args) {
    MyClass target = new MyClass();

    Advisor advisor = new DefaultPointcutAdvisor(new SimpleDynamicPointcut(), new SimpleAdvice());

    ProxyFactory pf = new ProxyFactory();
    pf.setTarget(target);
    pf.addAdvisor(advisor);
    MyClass proxy = (MyClass) pf.getProxy();

    proxy.foo(1);
    proxy.bar();

  }
}

class MyClass {

  public void foo(int x) {
    System.out.println("MyClass.foo() : " + x);
  }

  public void bar() {
    System.out.println("MyClass.bar()");
  }
}

class SimpleAdvice implements MethodInterceptor {

  public Object invoke(MethodInvocation invocation) throws Throwable {
    System.out.println("SimpleAdivce.Invoking " + invocation.getMethod().getName());
    Object retVal = invocation.proceed();
    System.out.println("SimpleAdvice.Done");
    return retVal;
  }
}

class SimpleDynamicPointcut extends DynamicMethodMatcherPointcut {

  public boolean matches(Method method, Class cls) {
    return ("foo".equals(method.getName()));
  }

  public boolean matches(Method method, Class cls, Object[] args) {
    int x = (Integer) args[0];
    return (x != 100);
  }

  public ClassFilter getClassFilter() {
    return new ClassFilter() {
      public boolean matches(Class cls) {
        return (cls == MyClass.class);
      }
    };
  }
}

28.56.Pointcut
	28.56.1.	Default Pointcut Advisor
	28.56.2.	Control Flow Pointcut
	28.56.3.	ComposablePointcut Union
	28.56.4.	ComposablePointcut Intersection
	28.56.5.	Class Filter In DynamicMethodMatcherPointcut
	28.56.6.	NameMatchMethodPointcutAdvisor
	28.56.7.	NameMatchMethodPointcut
	28.56.8.	Jdk Regexp based Method Pointcut
	28.56.9.	All Kinds Of Pointcut