From: Wolfgang Laun <wolfgang.laun_at_gmail.com>
Date: Sat, 23 Aug 2008 21:02:42 +0200

Kenny MacLeod wrote:

> My question is whether there is a hidden option in the RI somewhere
> which will automatically intern the strings for me, removing the need to
> attach these type adapters all over the shop.

You can intern your unmarshalled strings with a simple global
customization where you override the standard parse method.

<jaxb:globalBindings>
  <jaxb:javaType name="String"
                 xmlType="xsd:string"
                 parseMethod="faststring.StringInterner.parseStringToString"/>
</jaxb:globalBindings>

Here's the class StringInterner:

package faststring;
import javax.xml.bind.DatatypeConverter;

public class StringInterner {
    public static String parseStringToString( String value ){
        return DatatypeConverter.parseString( value ).intern();
    }
}

I'm using 1.6.0_03.

Cheers
Wolfgang