Modify a class definition's annotation string parameter at runtime

Question

Imagine there is a class:

@Something(someProperty = \"some value\")
public class Foobar {
    //...
}

Which is already compiled (I cannot c

Answer 1

SPRING can do this job very easily , might be useful for spring developer . follow these steps :-

First Solution :- 1)create a Bean returning a value for someProperty . Here I injected the somePropertyValue with @Value annotation from DB or property file :-

    @Value("${config.somePropertyValue}")
    private String somePropertyValue;

    @Bean
    public String somePropertyValue(){
        return somePropertyValue;
    }

2)After this , it is possible to inject the somePropertyValue into the @Something annotation like this :-

@Something(someProperty = "#{@somePropertyValue}")
public class Foobar {
    //...
}

Second solution :-

1) create getter setter in bean :-

 @Component
    public class config{
         @Value("${config.somePropertyValue}")
         private String somePropertyValue;

         public String getSomePropertyValue() {
           return somePropertyValue;
         }
        public void setSomePropertyValue(String somePropertyValue) {
           this.somePropertyValue = somePropertyValue;
        }
    }

2)After this , it is possible to inject the somePropertyValue into the @Something annotation like this :-

@Something(someProperty = "#{config.somePropertyValue}")
public class Foobar {
    //...
}