public ParameterHelper(AbstractScalarParameterHandle param, ULocale ulocale, TimeZone timezone) {
this.labelColumnName = getLabelColumnName(param);
this.valueColumnName = getValueColumnName(param);
this.valueType = param.getDataType();
this.alreadySorted = param.getSortByColumn() != null;
this.distinct = param.distinct();
String sortDirection = param.getSortDirection();
boolean sortByLabel = "label".equalsIgnoreCase(param.getSortBy());
if (param instanceof ScalarParameterHandle) {
parameterType = SCALAR_PARAMETER;
ScalarParameterHandle parameter = (ScalarParameterHandle) param;
this.fixedOrder = parameter.isFixedOrder();
if (param.getLabelExpr()
== null) { // if no label expression was set, apply pattern to value column
pattern = parameter.getPattern();
}
} else {
parameterType = FILTER_PARAMETER;
}
if (!(parameterType == SCALAR_PARAMETER && fixedOrder)
&& !alreadySorted
&& sortDirection != null) {
boolean sortDirectionValue =
DesignChoiceConstants.SORT_DIRECTION_ASC.equalsIgnoreCase(sortDirection);
Comparator choiceComparator =
new SelectionChoiceComparator(sortByLabel, pattern, sortDirectionValue, ulocale);
this.comparator = new DistinctComparatorDecorator(choiceComparator, distinct);
}
this.converter = new ReportParameterConverter(pattern, ulocale, timezone);
}
