You need a class which holds whether the value is a summary or not. Something like this
public class SummarizedValue {
public Integer value;
public boolean summarized;
public String toString() {
return null == value? "" : value.toString();
}
}
public class SummaryComparator implements Comparator<SummarizedValue> {
public int compare(SummarizedValue v1, SummarizedValue v2) {
if (v1.summarized) return 1;
if (v2.summarized) return -1;
return v1.value.compareTo(v2.value);
}
}
public class SummaryBackComparator implements Comparator<SummarizedValue> {
public int compare(SummarizedValue v1, SummarizedValue v2) {
if (v1.summarized) return 1;
if (v2.summarized) return -1;
return v2.value.compareTo(v1.value);
}
}
You need to display the objects of class SummarizedValue
in your column and your row sorter should return SummaryComparator
. Also your need to override toggle behaviour in RowSorter to use SummaryBackComparator
.