Spring @Value annotation - best way to have and replace a placeholder from a properties file

I am using the spring @Value annotation to load a property into my controller from a file.

In my controller....

@Value("#{messagesProperties['confirm.priceOverride.fourWeeksOrMore']}")
public String recallOfFourWeeksOrMoreConfirm = null;        

In my messagesProperties properties file...

confirm.priceOverride.fourWeeksOrMore=You have chosen to recall historical data older than four weeks of age. Do you wish to continue?

This works but I would now like to put a placeholder in the property file to replace the word four. For example...

confirm.priceOverride.fourWeeksOrMore=You have chosen to recall historical data older than {0} weeks of age. Do you wish to continue?

The {0} specified in the properties file will be replaced with a value returned from the database which I can get using the following code...

Integer priceOverrideRetentionDays = appParamsManager.getPriceOverrideRetentionDays();

I guess one of the ways I can do this is to just do a string replace but there is probably a better way than that to do what I need.

Can someone please help me with how?

thanks