spring - Update field annotated with @Value in runtime -

let's imagine have such component in spring:

@component public class mycomponent {      @value("${someproperty}")     private string text; } 

if define property placeholder:

<context:property-placeholder location="classpath:myprops.properties"/>   

and mypropos.properties contains value someproperty value injected text field when context initialized. that's quite simple , easy.

but let's have service enables user change value of someproperty:

public void changeprop(string name, string newvalue); 

is there chance can re-inject newvalue text field. mean should quite straight forward.. it's nothing different after-initialization injection. can not imagine spring not have support this? can fire event or something?

i on own basically, wander maybe there already? if not know spring class in fact handling injections @ first place? reuse code there perform on own if solution not exists.

i expect spring not have support this, because normal injection done while creating bean, not put in service.

anyway: in this blog entry "reloadable application properties spring 3.1, java 7 , google guava", can find idea solution.

the key idea use post processor build list of fields property fields. , if properties changed on can use list update fields.