AOP Annotation : Spring Aspect « Spring « Java Tutorial

1. Java Tutorial
2. Spring
3. Spring Aspect

File: Main.java

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import java.lang.reflect.Method;

import org.springframework.aop.Advisor;
import org.springframework.aop.AfterReturningAdvice;
import org.springframework.aop.MethodBeforeAdvice;
import org.springframework.aop.framework.ProxyFactory;
import org.springframework.aop.support.DefaultPointcutAdvisor;
import org.springframework.aop.support.annotation.AnnotationMatchingPointcut;

public class Main {
  public static void main(String[] args) {
    SampleBean target = new SampleBean();
    AnnotationMatchingPointcut pc = new AnnotationMatchingPointcut(null, SimpleAnnotation.class);
    Advisor advisor = new DefaultPointcutAdvisor(pc, new SimpleBeforeAdvice());

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

    SampleBean proxy = (SampleBean) pf.getProxy();
    proxy.getName();
    proxy.getHeight();
  }
}

class SimpleBeforeAdvice implements MethodBeforeAdvice {
  public void before(Method method, Object[] args, Object target) throws Throwable {
    System.out.println("Before method " + method);
  }
}

@SimpleAnnotation
class SampleBean {
  @SimpleAnnotation
  public String getName() {
    return "AAA";
  }

  public void setName(String name) {
  }

  public int getHeight() {
    return 201;
  }
}

@Target( { ElementType.METHOD, ElementType.TYPE })
@Retention(RetentionPolicy.RUNTIME)
@interface SimpleAnnotation {
}

class AnnotationAfterAdvice implements AfterReturningAdvice {
  public void afterReturning(Object returnValue, Method method, Object[] args, Object target)
      throws Throwable {
    System.out.print("After annotated method: " + method);
  }
}

28.50.Spring Aspect
	28.50.1.	Spring Tracing Aspect
	28.50.2.	Spring Aspect Logging
	28.50.3.	AspectJ Expression Pointcut
	28.50.4.	AspectJ AutoProxy
	28.50.5.	Aspect Filter
	28.50.6.	Aspect Annotation Pointcut Around After
	28.50.7.	Aspect Annotation
	28.50.8.	AOP Annotation
	28.50.9.	Annotation Scope
	28.50.10.	Spring AOP Examples