String function ( final Object arg0 ) { if ( arg0 == null ) { throw new NullPointerException ( ) ; } if ( arg0 instanceof Number ) { return arg0 . toString ( ) ; } throw new BeanException ( "srini_string" + arg0 . getClass ( ) + "srini_string" ) ; }
converts the attribute to a string . concode_field_sep PlaceHolder placeHolder concode_field_sep Object toPropertyValue