Build strings with Spring?

I got to know Spring and looked at dependency injection and IoC the way I did before.

If I want to build a string, say for a file name, and I already have a Spring bean that contains a directory, what is the best way to add the file name?

Writing a bean to do this seems pretty trivial, but I think Spring may already be able to do this somewhere, though its API. If possible, how?

Just for kicks, here's a pretty simple bean implementation ...

public class MySimpleStringAppender {

    private final StringBuffer myString = new StringBuffer();

    public MySimpleStringAppender(List<String> myStrings) {
        for (String string : myStrings) {
            myString.append(string);
        }
    }

    public String getMySimpleString() {
        return myString.toString();
    }

}

      

        
        
        
      

    

and configured with ...

<bean id="filename" class="MySimpleStringAppender">
    <constructor-arg ref="filenameStrings"/>
</bean>

<util:list id="filenameStrings">
    <ref bean="directory"/>
    <value>filename.txt</value>
</util:list>

<bean id="directory" class="java.lang.String">
    <constructor-arg value="C:/myDirectory/"/>
</bean>

      

        
        
        
      

    

So while this isn't very much work or code, I think there will be something available so I wouldn't need to write this at all.