code: public LogicalOperator getLogicalOperator() {
  		String value = (String) logicalOperatorRadio.getValue();
  		if (value.equals(I18nProvider.getSearch().radioOperatorAnd())) {
  			return LogicalOperator.AND;
  		}
  		return LogicalOperator.OR;
  	}
docs: Return the current value for the logical operator.This operator determines whether all the criteria have to be
  met in the search, or just one of them.
  
  @return current logical operator