Pointcut Example JdkRegexpMethod

In JdkRegexpMethodPointcut the most intertesting thing is its pattern matching method names spring matches fully qualified method name. This is a powerful concept which allows you to match all the method within a given package. The example given below illustrates the use of JdkRegexpMethodPointcut.

SimpleBean.java

package roseindia.net.bean;

public class SimpleBean {
	public void sayHi() {
		System.out.println("Hi Friend");
	}

	public void sayHi(String name) {
		System.out.println("Hi " + name);
	}

	public void greet() {
		System.out.println("Have a Nice Day......");
	}
}

SimpleAdvice.java

package roseindia.net.advice;

import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;

public class SimpleAdvice implements MethodInterceptor {

	@Override
	public Object invoke(MethodInvocation methodInvocation) throws Throwable {
		System.out.println("Calling......"
				+ methodInvocation.getMethod().getName());
		Object object = methodInvocation.proceed();
		System.out.println("End");
		// TODO Auto-generated method stub
		return object;
	}

}

MainClaz.java

package roseindia.net.main;

import org.springframework.aop.Advisor;
import org.springframework.aop.framework.ProxyFactory;
import org.springframework.aop.support.DefaultPointcutAdvisor;
import org.springframework.aop.support.JdkRegexpMethodPointcut;

import roseindia.net.advice.SimpleAdvice;
import roseindia.net.bean.SimpleBean;

public class MainClaz {
	public static void main(String[] args) {
		SimpleBean simpleBean = new SimpleBean();
		JdkRegexpMethodPointcut jdkRegexpMethodPointcut = new JdkRegexpMethodPointcut();
		jdkRegexpMethodPointcut.setPattern(".*sayHi.*");
		SimpleAdvice advice = new SimpleAdvice();
		Advisor advisor = new DefaultPointcutAdvisor(jdkRegexpMethodPointcut,
				advice);

		ProxyFactory proxyFactory = new ProxyFactory();
		proxyFactory.setTarget(simpleBean);
		proxyFactory.addAdvisor(advisor);

		SimpleBean proxy = (SimpleBean) proxyFactory.getProxy();
		proxy.sayHi();
		proxy.greet();
		proxy.sayHi("Vinay");
	}
}

Download this example code

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