conditional column summary

[skywalker]

I'm using an Aggregate table and I want a certain column summary to be displayed only in another column of the table has been grouped. I didn't find a direct API to tell if a column is grouped so I wrote the method below. However how do I alter the summary function to disable summary based on the grouping? Is TableModelListener the right place where I call setSummaryType(PivotConstants.SUMMARY_NONE) on the field if isColumnFooGrouped() returns true?

Code: Select all

private boolean isColumnFooGrouped() {
    int groupColumnCount = aggregateTableModel.getGroupColumnCount();
    for(int i = 0; i<groupColumnCount; i++) {
        int groupColumn = aggregateTableModel.getGroupColumnAt(i);
        String columnName = actualModel.getColumnName(groupColumn);
        if("foo".equals(columnName)) {
            return true;
        }
    }
    return false;
}


Thanks,
Sanjiv

[JIDE Support]

Your code fraction need a little bit modification to be more accurate. Each grouping/ungrouping operation will fire table structure changed event from AggregateTableModel so you can listen to that event and check this method you provided.

Code: Select all

private boolean isColumnFooGrouped() {
    int groupColumnCount = aggregateTableModel.getGroupColumnCount();
    for(int i = 0; i<groupColumnCount; i++) {
        int groupColumn = aggregateTableModel.getGroupColumnAt(i);
        String columnName = aggregateTableModel.getActualModel().getColumnName(groupColumn);
        if("foo".equals(columnName)) {
            return true;
        }
    }
    return false;
}

Thanks,

[skywalker]

I was saving the actual model as a member variable but your suggestion of using aggregateTableModel.getActualModel() is better. The solution works, thanks.