if ( value instanceof String )
{
    // TODO: without #, this could just be an evaluate call...
    String val = (String) value;
    int exprStartDelimiter = val.indexOf( "${" );
    if ( exprStartDelimiter >= 0 )
    {
        if ( exprStartDelimiter > 0 )
        {
            value = val.substring( 0, exprStartDelimiter ) + evaluate( val.substring( exprStartDelimiter ) );
        }
        else
        {
            value = evaluate( val.substring( exprStartDelimiter ) );
        }
    }
}