custom jndi resources

[Radim Kolar]

i have in web.xml

<resource-ref>
<description>Adresa Cassandra clusteru</description>
<res-ref-name>cass</res-ref-name>
<res-type>java.lang.String</res-type>
<res-auth>Container</res-auth>
<res-sharing-scope>Shareable</res-sharing-scope>
</resource-ref>
I need  to define String resource and bind it to jndi to make 
application work. From IBM documentation it seems that writing Gbean is 
needed:

>>>
If you were exposing resources other than JMS or database resources 
through JNDI, you
can do the same by writing GBeans to act as a wrapper around your 
resources. First,
check for any plug-ins that are already available for exposing such 
resources as part of
JNDI in Community Edition.
<<<

Because i need String then my custom bean must subclass String?

public  class StringWrapperGBeanimplements  InterfaceNamed {

    public  StringWrapperGBean(String  gbeanName) {
        super(gbeanName);
    }

   private  static  final  GBeanInfo GBEAN_INFO;

    static  {
            GBeanInfoBuilder infoFactory =new  GBeanInfoBuilder(
            StringWrapperGBean.class.getName(), StringWrapperGBean.class);

            infoFactory.addAttribute("gbeanName",String.class,false);
            infoFactory.addInterface(InterfaceNamed.class);
            infoFactory.setConstructor(new  String[] {"gbeanName"  });

            GBEAN_INFO = infoFactory.getBeanInfo();
        }

     public  static  GBeanInfo getGBeanInfo() {
                return  GBEAN_INFO;
    }

I am kinda confused