[xsd-users] sorting of a sequence of elements when IDs are
contained, duplicate_id exception
Jan Klimke
jan.klimke at hpi.uni-potsdam.de
Thu Feb 12 08:23:13 EST 2009
Hi all,
i would like to sort a sequence which was extracted from xml. Therefore
i defined a comparison function like this
bool TourTool::compareTourSectionBySectionNumber(
gml::FeaturePropertyType& sec1,gml::FeaturePropertyType& sec2 ){
return
(static_cast<TourSectionType*>(sec1.getFeature())->getSectionNo() <
static_cast<TourSectionType*>(sec2.getFeature())->getSectionNo());
}
The problem is when i call
std::sort(tour->getTourSection().begin(), tour->getTourSection().end(),
compareTourSectionBySectionNumber);
where tourSection is a sequence of gml:FeaturePropertyType, a
duplicate_id exception is thrown. This probably happens because of the
gml:id of the entities is copied when a position switch in the sequence
is necessary.
Is there another way to sort such a sequence without throwing this
exception ?
Regards,
Jan
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