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Table Sorting (I know it is a pain)

 
Sam Codean
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Hi All,
I wanted to implement a simple sorting for the JTable (I have cursed sun at least 1,000,000 times for not providing that)

I implemented a simple single level sorting taking help from the TableSorter from the Examples. But there is a small complication.

when there are many rows with same values i just leave the order as it is. But now if i sort it based on column 1 first and then go to column 2 then the order is different and if i go to column 3 first and then to column 2 then t order is different

Please let me know if that is an issue?
 
Edwin Dalorzo
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Well, your problem must be that you are not extending your own TableModel. In my implementation I extended AbstracTableModel and instead of using a Vector of String objects with independent columns I use a List of Hotels [List<Hotel>] as the model of the TableModel.

Therefore every line in my TableModel is whole value object.

Early in my implementation I created Comparators for all the Hotel fields (name, location, rate, size, date, etc).

So, in my TableModel I do not order a particular column, I order the whole collection of Hotels using a Comparator. Somewhat like:



That sorts my List<Hotel> using a particular comparator and evidently all the colums are displayed accordinginly in the JTable.
[ October 21, 2006: Message edited by: Edwin Dalorzo ]
 
Sam Codean
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Thanks Edwin,
I too have done something similar to what you are telling. But the problem that i am facing i will explain
Suppose there are three rows (simplified though)


So you see that after the step 2 of both the variations even though i am sorting the column 2 and it indeed is sorted but yet the rows with the same City will not be having the same order as it depends on which column was selected earlier.

I was wanting to know if that is fine as long as sorting is done correctly on the column 2
[ October 21, 2006: Message edited by: Sam Codean ]
 
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