code: public Object execute(final Object value, final CsvContext context) {
  		
  		if( !collection.contains(value) ) {
  			throw new SuperCsvConstraintViolationException(String.format(
  				"'%s' is not an element of the supplied Collection", value), context, this);
  		}
  		
  		return next.execute(value, context);
  	}
docs: {@inheritDoc}
  
  @throws SuperCsvConstraintViolationException
  if value isn't in the Collection