Re: [ jEdit-devel ] HelpfulJTable: sorting: RFE

[<dmo...@gm...>]

Hi Sergey,

On Thursday, September 20, 2001, 3:57:39 PM, Sergey V. Udaltsov wrote:
> Hi Dirk

> I really like HelpfulJTable for its sorting ability. But it seems to be
> not finished yet. In most cases, the cell is String - so what's the
> problem of implementing the sorting (at least, some default
> implementation) inside the table class=3F Do you have plans on this=3F

I had some plans for it in the long term, but they're not much
elaborated right now: Similar to a column model, a HelpfulJTable should
get a sort model. The sort model would not only allow to sort by a
certain column, but to sort by a cascade of columns as well. E.g.
BufferList could sort by dir first, then by name and so on...

I didn't want to integrate String sort _inside_ HelpfulJTable, because
it is too restrictive and unflexible. Instead, a table column should
optionally be associated with a Sorter class instance, that implements
the Comparable interface.

But, seeing as it is, I probably don't get to implement this in the next
two or three months, so feel free to hack away as you like. My
suggestion is: implement the Sorter/Comparable approach only, with a
default String-Sorter used for columns of which getColumnClass() returns
String.class. You could create those default sorters each time a new
model is set, ie. in setModel() and the constructor.

The full SortModel/cascading sort approach could be implemented later.


Hope I made myself clear.
Regards,
Dirk.