Aspect Hello World Example : Spring Aspect « Spring « Java






  1. Java
  2. Spring
  3. Spring Aspect

Aspect Hello World Example

/* Pro Spring By Rob Harrop Jan Machacek ISBN: 1-59059-461-4 Publisher: Apress *//////////////////////////////////////////////////////////////////////////////////////// publicinterface IMessageWriter { publicvoid writeMessage(); } /////////////////////////////////////////////////////////////////////////////////////// publicclass MessageWriter implements IMessageWriter{ publicvoid writeMessage() { System.out.print("World"); } } /////////////////////////////////////////////////////////////////////////////////////// import org.aopalliance.intercept.MethodInterceptor; import org.aopalliance.intercept.MethodInvocation; publicclass MessageDecorator implements MethodInterceptor { public Object invoke(MethodInvocation invocation) throws Throwable { System.out.print("Hello "); Object retVal = invocation.proceed(); System.out.println("!"); return retVal; } } /////////////////////////////////////////////////////////////////////////////////////// import org.springframework.aop.framework.ProxyFactory; publicclass HelloWorldAOPExample { publicstaticvoid main(String[] args) { MessageWriter target = new MessageWriter(); // create the proxy  ProxyFactory pf = new ProxyFactory(); pf.addAdvice(new MessageDecorator()); pf.setTarget(target); MessageWriter proxy = (MessageWriter) pf.getProxy(); // write the messages  target.writeMessage(); System.out.println(""); proxy.writeMessage(); } }








SpringHelloWorldExample.zip( 1,479 k)

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