import javax.interceptor.AroundInvoke;
import javax.interceptor.Interceptor;
import javax.interceptor.InvocationContext;
@Interceptor
public class LoggingInterceptor {
@AroundInvoke
public Object logMethod(InvocationContext invocationContext) throws Exception {
System.out.println("Method name: " + invocationContext.getMethod().getName());
Object result = invocationContext.proceed();
System.out.println("Method executed successfully.");
return result;
}
}
@Logged
public class UserService {
@Interceptors(LoggingInterceptor.class)
public void createUser(String username, String password) {
}
}
@Interceptor
@Priority(Interceptor.Priority.APPLICATION)
public class TransactionInterceptor {
}
@Interceptor
@Priority(Interceptor.Priority.LIBRARY_BEFORE)
public class LoggingInterceptor {
}
@InterceptorBinding
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.TYPE, ElementType.METHOD})
public @interface Logged {
}
@Logged
public class UserService {
public void createUser(String username, String password) {
}
}
